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amethyst - crystal cluster - hand/display specimen from Uruguay 1 left
amethyst - crystal cluster - hand/display specimen from Uruguay
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$ 9.50
amethyst - crystal cluster - hand/display specimen from Uruguay
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1 left

amethyst - crystal cluster - hand/display specimen from Uruguay

$ 9.50

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amethyst - crystal clusters - set of five student specimens from Uruguay
amethyst - crystal clusters - set of five student specimens from Uruguay
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$ 12.50
amethyst - crystal clusters - set of five student specimens from Uruguay
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amethyst - crystal clusters - set of five student specimens from Uruguay

$ 12.50

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barite - 250 ml display bottle of the milled barite used in oil well drilling mud
barite - 250 ml display bottle of the milled barite used in oil well drilling mud
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$ 10.80
barite - 250 ml display bottle of the milled barite used in oil well drilling mud

barite - 250 ml display bottle of the milled barite used in oil well drilling mud

$ 10.80

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calcite - banded calcite collected from a vein near Payson, Arizona - hand specimen 2 left
calcite - banded calcite collected from a vein near Payson, Arizona - hand specimen
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$ 9.50
calcite - banded calcite collected from a vein near Payson, Arizona - hand specimen
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2 left

calcite - banded calcite collected from a vein near Payson, Arizona - hand specimen

$ 9.50

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calcite - banded calcite collected from a vein near Payson, Arizona - hand/display specimen 2 left
calcite - banded calcite collected from a vein near Payson, Arizona - hand/display specimen
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$ 9.50
calcite - banded calcite collected from a vein near Payson, Arizona - hand/display specimen
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2 left

calcite - banded calcite collected from a vein near Payson, Arizona - hand/display specimen

$ 9.50

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calcite - calcite cleavage rhombs from Morocco - Unit of 12 smaller student specimens
calcite - calcite cleavage rhombs from Morocco - Unit of 12 smaller student specimens
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$ 11.50
calcite - calcite cleavage rhombs from Morocco - Unit of 12 smaller student specimens
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calcite - calcite cleavage rhombs from Morocco - Unit of 12 smaller student specimens

$ 11.50

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calcite - calcite cleavage rhombs from Morocco - Unit of 5 large student specimens
calcite - calcite cleavage rhombs from Morocco - Unit of 5 large student specimens
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$ 9.00
calcite - calcite cleavage rhombs from Morocco - Unit of 5 large student specimens
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calcite - calcite cleavage rhombs from Morocco - Unit of 5 large student specimens

$ 9.00

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calcite - teaching student specimens of naturally brown calcite - UNIT OF 5 SPECIMENS
calcite - teaching student specimens of naturally brown calcite - UNIT OF 5 SPECIMENS
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$ 4.20
calcite - teaching student specimens of naturally brown calcite - UNIT OF 5 SPECIMENS
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calcite - teaching student specimens of naturally brown calcite - UNIT OF 5 SPECIMENS

$ 4.20

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chalcopyrite - teaching student specimens from a mineralized vein - Unit of 5 specimens 4 left
chalcopyrite - teaching student specimens from a mineralized vein - Unit of 5 specimens
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$ 12.50
chalcopyrite - teaching student specimens from a mineralized vein - Unit of 5 specimens
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4 left

chalcopyrite - teaching student specimens from a mineralized vein - Unit of 5 specimens

$ 12.50

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chert - banded chert from the Monterey Formation, California - display specimen 1 left
chert - banded chert from the Monterey Formation, California - display specimen
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$ 30.00
chert - banded chert from the Monterey Formation, California - display specimen
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1 left

chert - banded chert from the Monterey Formation, California - display specimen

$ 30.00

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chert - banded chert from the Monterey Formation, California - hand/display specimen 2 left
chert - banded chert from the Monterey Formation, California - hand/display specimen
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$ 12.50
chert - banded chert from the Monterey Formation, California - hand/display specimen
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2 left

chert - banded chert from the Monterey Formation, California - hand/display specimen

$ 12.50

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chert - banded chert from the Monterey Formation, California - large hand/display specimen 1 left
chert - banded chert from the Monterey Formation, California - large hand/display specimen
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$ 20.00
chert - banded chert from the Monterey Formation, California - large hand/display specimen
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1 left

chert - banded chert from the Monterey Formation, California - large hand/display specimen

$ 20.00

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chert - student specimens of light tan chert - Unit of 5 specimens
chert - student specimens of light tan chert - Unit of 5 specimens
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$ 4.20
chert - student specimens of light tan chert - Unit of 5 specimens

chert - student specimens of light tan chert - Unit of 5 specimens

$ 4.20

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chert - teaching hand specimen of light tan chert
chert - teaching hand specimen of light tan chert
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$ 7.50
chert - teaching hand specimen of light tan chert
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chert - teaching hand specimen of light tan chert

$ 7.50

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dendrites - display specimen of spectacular manganese oxide dendrites 2 left
dendrites - display specimen of spectacular manganese oxide dendrites
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$ 15.00
dendrites - display specimen of spectacular manganese oxide dendrites
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2 left

dendrites - display specimen of spectacular manganese oxide dendrites

$ 15.00

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dendrites - hand/display specimen of manganese oxide dendrites 4 left
dendrites - hand/display specimen of manganese oxide dendrites
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$ 9.50
dendrites - hand/display specimen of manganese oxide dendrites
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4 left

dendrites - hand/display specimen of manganese oxide dendrites

$ 9.50

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dendrites - teaching hand specimen of manganese oxide dendrites
dendrites - teaching hand specimen of manganese oxide dendrites
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$ 7.50
dendrites - teaching hand specimen of manganese oxide dendrites
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dendrites - teaching hand specimen of manganese oxide dendrites

$ 7.50

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fulgurite - natural glass tubes formed by lightning strikes on sand - set of three
fulgurite - natural glass tubes formed by lightning strikes on sand - set of three
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$ 12.50
fulgurite - natural glass tubes formed by lightning strikes on sand - set of three
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fulgurite - natural glass tubes formed by lightning strikes on sand - set of three

$ 12.50

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kaolinite - hard vitreous form - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens
kaolinite - hard vitreous form - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens
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$ 4.20
kaolinite - hard vitreous form - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens

kaolinite - hard vitreous form - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens

$ 4.20

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kaolinite - hard vitreous kaolin - display specimen of the primary constituent of kaolin clay 2 left
kaolinite - hard vitreous kaolin - display specimen of the primary constituent of kaolin clay
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$ 12.50
kaolinite - hard vitreous kaolin - display specimen of the primary constituent of kaolin clay
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2 left

kaolinite - hard vitreous kaolin - display specimen of the primary constituent of kaolin clay

$ 12.50

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kaolinite - hard vitreous kaolin - hand specimen of the primary constituent of kaolin clay 1 left
kaolinite - hard vitreous kaolin - hand specimen of the primary constituent of kaolin clay
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$ 7.50
kaolinite - hard vitreous kaolin - hand specimen of the primary constituent of kaolin clay
1 left

kaolinite - hard vitreous kaolin - hand specimen of the primary constituent of kaolin clay

$ 7.50

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kaolinite - hard vitreous kaolin - hand/display specimen of the primary constituent of kaolin clay 4 left
kaolinite - hard vitreous kaolin - hand/display specimen of the primary constituent of kaolin clay
-
$ 7.50
kaolinite - hard vitreous kaolin - hand/display specimen of the primary constituent of kaolin clay
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4 left

kaolinite - hard vitreous kaolin - hand/display specimen of the primary constituent of kaolin clay

$ 7.50

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kaolinite - hard vitreous kaolin - teaching hand specimen of the primary constituent of kaolin clay 2 left
kaolinite - hard vitreous kaolin - teaching hand specimen of the primary constituent of kaolin clay
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$ 7.50
kaolinite - hard vitreous kaolin - teaching hand specimen of the primary constituent of kaolin clay
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2 left

kaolinite - hard vitreous kaolin - teaching hand specimen of the primary constituent of kaolin clay

$ 7.50

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kaolinite - soft kaolin - display specimen of the primary constituent of kaolin clay 2 left
kaolinite - soft kaolin - display specimen of the primary constituent of kaolin clay
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$ 10.50
kaolinite - soft kaolin - display specimen of the primary constituent of kaolin clay
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2 left

kaolinite - soft kaolin - display specimen of the primary constituent of kaolin clay

$ 10.50

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kaolinite - soft kaolin - hand/display specimen of the primary constituent of kaolin clay 4 left
kaolinite - soft kaolin - hand/display specimen of the primary constituent of kaolin clay
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$ 7.50
kaolinite - soft kaolin - hand/display specimen of the primary constituent of kaolin clay
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4 left

kaolinite - soft kaolin - hand/display specimen of the primary constituent of kaolin clay

$ 7.50

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kaolinite - soft kaolin - teaching hand/display specimen of the primary constituent of kaolin clay 4 left
kaolinite - soft kaolin - teaching hand/display specimen of the primary constituent of kaolin clay
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$ 7.50
kaolinite - soft kaolin - teaching hand/display specimen of the primary constituent of kaolin clay
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4 left

kaolinite - soft kaolin - teaching hand/display specimen of the primary constituent of kaolin clay

$ 7.50

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kaolinite - soft kaolin - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens
kaolinite - soft kaolin - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens
-
$ 4.20
kaolinite - soft kaolin - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens

kaolinite - soft kaolin - teaching student specimens of the primary constituent of kaolin clay - Unit of 5 specimens

$ 4.20

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kernite - hydrated sodium borate, an uncommon borate mineral - hand specimen 1 left
kernite - hydrated sodium borate, an uncommon borate mineral - hand specimen
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$ 7.50
kernite - hydrated sodium borate, an uncommon borate mineral - hand specimen
1 left

kernite - hydrated sodium borate, an uncommon borate mineral - hand specimen

$ 7.50

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limonite - teaching hand specimen of limonite from the Whiteside mine 1 left
limonite - teaching hand specimen of limonite from the Whiteside mine
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$ 7.50
limonite - teaching hand specimen of limonite from the Whiteside mine
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1 left

limonite - teaching hand specimen of limonite from the Whiteside mine

$ 7.50

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limonite - teaching student specimens of limonite - UNIT OF 5 SPECIMENS
limonite - teaching student specimens of limonite - UNIT OF 5 SPECIMENS
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$ 4.20
limonite - teaching student specimens of limonite - UNIT OF 5 SPECIMENS
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limonite - teaching student specimens of limonite - UNIT OF 5 SPECIMENS

$ 4.20

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limonite - hand/display specimen of limonite - hydrated iron oxides - from the cap of a hydrothermal vein 1 left
limonite - hand/display specimen of limonite - hydrated iron oxides - from the cap of a hydrothermal vein
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$ 9.50
limonite - hand/display specimen of limonite - hydrated iron oxides - from the cap of a hydrothermal vein
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1 left

limonite - hand/display specimen of limonite - hydrated iron oxides - from the cap of a hydrothermal vein

$ 9.50

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limonite - hand/display specimen of limonite from the top of a mineralized vein, showing conversion to yellow ochre 1 left
limonite - hand/display specimen of limonite from the top of a mineralized vein, showing conversion to yellow ochre
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$ 7.50
limonite - hand/display specimen of limonite from the top of a mineralized vein, showing conversion to yellow ochre
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1 left

limonite - hand/display specimen of limonite from the top of a mineralized vein, showing conversion to yellow ochre

$ 7.50

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magnesite - hand/display specimen of light gray earthy magnesium carbonate with biotite flakes - Kramer Hills, San Bernardino County, California 1 left
magnesite - hand/display specimen of light gray earthy magnesium carbonate with biotite flakes - Kramer Hills, San Bernardino County, California
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$ 7.50
magnesite - hand/display specimen of light gray earthy magnesium carbonate with biotite flakes - Kramer Hills, San Bernardino County, California
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1 left

magnesite - hand/display specimen of light gray earthy magnesium carbonate with biotite flakes - Kramer Hills, San Bernardino County, California

$ 7.50

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magnesite - light gray earthy magnesite - hand/display specimen 2 left
magnesite - light gray earthy magnesite - hand/display specimen
-
$ 7.50
magnesite - light gray earthy magnesite - hand/display specimen
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2 left

magnesite - light gray earthy magnesite - hand/display specimen

$ 7.50

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magnesite - nodular form of vitreous magnesite - unit of 5 student specimens
magnesite - nodular form of vitreous magnesite - unit of 5 student specimens
-
$ 5.20
magnesite - nodular form of vitreous magnesite - unit of 5 student specimens
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magnesite - nodular form of vitreous magnesite - unit of 5 student specimens

$ 5.20

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magnesite - nodular form of vitreous magnesite - unit of 10 smaller specimens 4 left
magnesite - nodular form of vitreous magnesite - unit of 10 smaller specimens
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$ 6.20
magnesite - nodular form of vitreous magnesite - unit of 10 smaller specimens
4 left

magnesite - nodular form of vitreous magnesite - unit of 10 smaller specimens

$ 6.20

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magnesite - teaching hand specimen of light tan porous magnesite - Windous magnesite deposit, Westvaco Mine
magnesite - teaching hand specimen of light tan porous magnesite - Windous magnesite deposit, Westvaco Mine
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$ 7.50
magnesite - teaching hand specimen of light tan porous magnesite - Windous magnesite deposit, Westvaco Mine
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magnesite - teaching hand specimen of light tan porous magnesite - Windous magnesite deposit, Westvaco Mine

$ 7.50

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magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate from the Kramer Hills 1 left
magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate from the Kramer Hills
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$ 7.50
magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate from the Kramer Hills
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1 left

magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate from the Kramer Hills

$ 7.50

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magnesite - teaching student specimens of light tan porous magnesite from the Windous Butte magnesite deposit, Nevada - unit of 5 specimens
magnesite - teaching student specimens of light tan porous magnesite from the Windous Butte magnesite deposit, Nevada - unit of 5 specimens
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$ 4.20
magnesite - teaching student specimens of light tan porous magnesite from the Windous Butte magnesite deposit, Nevada - unit of 5 specimens

magnesite - teaching student specimens of light tan porous magnesite from the Windous Butte magnesite deposit, Nevada - unit of 5 specimens

$ 4.20

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magnesite - teaching student specimens of pale gray earthy magnesite from the Windous magnesite deposit - unit of 5 specimens
magnesite - teaching student specimens of pale gray earthy magnesite from the Windous magnesite deposit - unit of 5 specimens
-
$ 4.20
magnesite - teaching student specimens of pale gray earthy magnesite from the Windous magnesite deposit - unit of 5 specimens

magnesite - teaching student specimens of pale gray earthy magnesite from the Windous magnesite deposit - unit of 5 specimens

$ 4.20

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magnesite - vitreous magnesite - nodular form - teaching hand specimen 3 left
magnesite - vitreous magnesite - nodular form - teaching hand specimen
-
$ 7.50
magnesite - vitreous magnesite - nodular form - teaching hand specimen
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3 left

magnesite - vitreous magnesite - nodular form - teaching hand specimen

$ 7.50

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magnesite - white vitreous magnesite - display specimen 2 left
magnesite - white vitreous magnesite - display specimen
-
$ 15.00
magnesite - white vitreous magnesite - display specimen
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2 left

magnesite - white vitreous magnesite - display specimen

$ 15.00

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magnesite - white vitreous magnesite - hand/display specimen 2 left
magnesite - white vitreous magnesite - hand/display specimen
-
$ 12.50
magnesite - white vitreous magnesite - hand/display specimen
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2 left

magnesite - white vitreous magnesite - hand/display specimen

$ 12.50

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magnesite - white vitreous magnesite - teaching hand specimen Sold Out
magnesite - white vitreous magnesite - teaching hand specimen
-
$ 7.50
magnesite - white vitreous magnesite - teaching hand specimen
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magnesite - white vitreous magnesite - teaching hand specimen

$ 7.50

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magnesite - white vitreous magnesite - teaching hand/display specimen 3 left
magnesite - white vitreous magnesite - teaching hand/display specimen
-
$ 9.50
magnesite - white vitreous magnesite - teaching hand/display specimen
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3 left

magnesite - white vitreous magnesite - teaching hand/display specimen

$ 9.50

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magnesite - white vitreous magnesite - unit of 5 student specimens 4 left
magnesite - white vitreous magnesite - unit of 5 student specimens
-
$ 4.20
magnesite - white vitreous magnesite - unit of 5 student specimens
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4 left

magnesite - white vitreous magnesite - unit of 5 student specimens

$ 4.20

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magnetite - teaching student specimens of this important iron ore - unit of 10 smaller specimens Sold Out
magnetite - teaching student specimens of this important iron ore - unit of 10 smaller specimens
-
$ 5.80
magnetite - teaching student specimens of this important iron ore - unit of 10 smaller specimens
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Sold Out

magnetite - teaching student specimens of this important iron ore - unit of 10 smaller specimens

$ 5.80

Back in stock soon. Inquire.

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psilomelane - botryoidal psilomelane from Morocco - hand/display specimen
psilomelane - botryoidal psilomelane from Morocco - hand/display specimen
-
$ 15.00
psilomelane - botryoidal psilomelane from Morocco - hand/display specimen
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psilomelane - botryoidal psilomelane from Morocco - hand/display specimen

$ 15.00

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psilomelane - botryoidal psilomelane from Morocco - teaching hand specimen
psilomelane - botryoidal psilomelane from Morocco - teaching hand specimen
-
$ 9.50
psilomelane - botryoidal psilomelane from Morocco - teaching hand specimen
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psilomelane - botryoidal psilomelane from Morocco - teaching hand specimen

$ 9.50

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psilomelane - botryoidal psilomelane from Morocco - teaching hand/display specimen
psilomelane - botryoidal psilomelane from Morocco - teaching hand/display specimen
-
$ 12.50
psilomelane - botryoidal psilomelane from Morocco - teaching hand/display specimen
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psilomelane - botryoidal psilomelane from Morocco - teaching hand/display specimen

$ 12.50

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