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barite - 250 ml display bottle of the milled barite used in oil well drilling mud 1 left
barite - 250 ml display bottle of the milled barite used in oil well drilling mud
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$ 8.50
barite - 250 ml display bottle of the milled barite used in oil well drilling mud
1 left

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

$ 8.50

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barite rose - teaching set of barite roses from the Garber Sandstone near Noble, Oklahoma Sold Out
barite rose - teaching set of barite roses from the Garber Sandstone near Noble, Oklahoma
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$ 7.50
barite rose - teaching set of barite roses from the Garber Sandstone near Noble, Oklahoma
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barite rose - teaching set of barite roses from the Garber Sandstone near Noble, Oklahoma

$ 7.50

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calcite - cleavage rhombs of translucent calcite - set of two 3 left
calcite - cleavage rhombs of translucent calcite - set of two
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$ 12.50
calcite - cleavage rhombs of translucent calcite - set of two
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calcite - cleavage rhombs of translucent calcite - set of two

$ 12.50

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calcite - cleaved rhombs of translucent calcite - teaching hand specimen 2 left
calcite - cleaved rhombs of translucent calcite - teaching hand specimen
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$ 9.50
calcite - cleaved rhombs of translucent calcite - teaching hand specimen
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calcite - cleaved rhombs of translucent calcite - teaching hand 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 hand specimen of unusual brown calcite 3 left
calcite - teaching hand specimen of unusual brown calcite
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$ 7.50
calcite - teaching hand specimen of unusual brown calcite
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calcite - teaching hand specimen of unusual brown calcite

$ 7.50

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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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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 banded chert from the Monterey Formation, California Sold Out
chert - teaching hand specimen of banded chert from the Monterey Formation, California
-
$ 9.50
chert - teaching hand specimen of banded chert from the Monterey Formation, California
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chert - teaching hand specimen of banded chert from the Monterey Formation, California

$ 9.50

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chert - teaching hand specimen of light tan chert 2 left
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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clay - teaching hand specimen of non-expanding calcium montmorillonite clay 2 left
clay - teaching hand specimen of non-expanding calcium montmorillonite clay
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$ 7.50
clay - teaching hand specimen of non-expanding calcium montmorillonite clay
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2 left

clay - teaching hand specimen of non-expanding calcium montmorillonite clay

$ 7.50

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clay - teaching hand/display specimen of non-expanding calcium montmorillonite clay 4 left
clay - teaching hand/display specimen of non-expanding calcium montmorillonite clay
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$ 7.50
clay - teaching hand/display specimen of non-expanding calcium montmorillonite clay
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4 left

clay - teaching hand/display specimen of non-expanding calcium montmorillonite clay

$ 7.50

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clay - teaching student specimens of montmorillonite clay UNIT OF 5 SPECIMENS
clay - teaching student specimens of montmorillonite clay UNIT OF 5 SPECIMENS
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$ 4.20
clay - teaching student specimens of montmorillonite clay UNIT OF 5 SPECIMENS
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clay - teaching student specimens of montmorillonite clay UNIT OF 5 SPECIMENS

$ 4.20

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colemanite - hydrous calcium borate from the Terry borate deposit, Inyo County, California - teaching hand specimen Sold Out
colemanite - hydrous calcium borate from the Terry borate deposit, Inyo County, California - teaching hand specimen
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$ 9.50
colemanite - hydrous calcium borate from the Terry borate deposit, Inyo County, California - teaching hand specimen
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colemanite - hydrous calcium borate from the Terry borate deposit, Inyo County, California - teaching hand specimen

$ 9.50

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dendrites - display specimen of unusual manganese oxide dendrites 1 left
dendrites - display specimen of unusual manganese oxide dendrites
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$ 12.50
dendrites - display specimen of unusual manganese oxide dendrites
1 left

dendrites - display specimen of unusual manganese oxide dendrites

$ 12.50

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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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$ 7.50
dendrites - hand/display specimen of manganese oxide dendrites
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dendrites - hand/display specimen of manganese oxide dendrites

$ 7.50

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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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feldspar - hand specimen of bright salmon pink microcline from Custer County, South Dakota 2 left
feldspar - hand specimen of bright salmon pink microcline from Custer County, South Dakota
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$ 12.50
feldspar - hand specimen of bright salmon pink microcline from Custer County, South Dakota
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2 left

feldspar - hand specimen of bright salmon pink microcline from Custer County, South Dakota

$ 12.50

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feldspar - display specimen of bright salmon pink microcline from Custer County, South Dakota Sold Out
feldspar - display specimen of bright salmon pink microcline from Custer County, South Dakota
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$ 17.50
feldspar - display specimen of bright salmon pink microcline from Custer County, South Dakota
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feldspar - display specimen of bright salmon pink microcline from Custer County, South Dakota

$ 17.50

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feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD 1 left
feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
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$ 17.50
feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
1 left

feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD

$ 17.50

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feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD 1 left
feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
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$ 15.00
feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
1 left

feldspar - display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD

$ 15.00

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feldspar - hand/display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD 1 left
feldspar - hand/display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
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$ 12.50
feldspar - hand/display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
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1 left

feldspar - hand/display specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD

$ 12.50

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feldspar - teaching hand specimen of bright salmon pink microcline from Custer County, South Dakota 3 left
feldspar - teaching hand specimen of bright salmon pink microcline from Custer County, South Dakota
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$ 7.50
feldspar - teaching hand specimen of bright salmon pink microcline from Custer County, South Dakota
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3 left

feldspar - teaching hand specimen of bright salmon pink microcline from Custer County, South Dakota

$ 7.50

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feldspar - teaching hand specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD 3 left
feldspar - teaching hand specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
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$ 7.50
feldspar - teaching hand specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD
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3 left

feldspar - teaching hand specimen of pale pink perthitic microcline from the Mountain Beryl Mine, Custer County, SD

$ 7.50

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feldspar - teaching student specimens of pale pink perthitic microcline from the Mtn Beryl Mine - Unit of 5 specimens
feldspar - teaching student specimens of pale pink perthitic microcline from the Mtn Beryl Mine - Unit of 5 specimens
-
$ 4.20
feldspar - teaching student specimens of pale pink perthitic microcline from the Mtn Beryl Mine - Unit of 5 specimens
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feldspar - teaching student specimens of pale pink perthitic microcline from the Mtn Beryl Mine - Unit of 5 specimens

$ 4.20

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fulgurite - natural glass tubes formed by lightning strikes on sand - set of three 4 left
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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4 left

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

$ 12.50

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galena - teaching student specimens of the primary ore of lead - Unit of 10 smaller specimens 4 left
galena - teaching student specimens of the primary ore of lead - Unit of 10 smaller specimens
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$ 8.20
galena - teaching student specimens of the primary ore of lead - Unit of 10 smaller specimens
4 left

galena - teaching student specimens of the primary ore of lead - Unit of 10 smaller specimens

$ 8.20

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galena - teaching student specimens of the primary ore of lead - Unit of 5 specimens
galena - teaching student specimens of the primary ore of lead - Unit of 5 specimens
-
$ 7.50
galena - teaching student specimens of the primary ore of lead - Unit of 5 specimens

galena - teaching student specimens of the primary ore of lead - Unit of 5 specimens

$ 7.50

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gypsum - teaching student specimens of transparent selenite gypsum - Unit of 5 specimens Sold Out
gypsum - teaching student specimens of transparent selenite gypsum - Unit of 5 specimens
-
$ 4.20
gypsum - teaching student specimens of transparent selenite gypsum - Unit of 5 specimens
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gypsum - teaching student specimens of transparent selenite gypsum - Unit of 5 specimens

$ 4.20

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gypsum - display specimen of sugary white rock gypsum 1 left
gypsum - display specimen of sugary white rock gypsum
-
$ 12.50
gypsum - display specimen of sugary white rock gypsum
1 left

gypsum - display specimen of sugary white rock gypsum

$ 12.50

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gypsum - hand/display specimen of sugary white rock gypsum 4 left
gypsum - hand/display specimen of sugary white rock gypsum
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$ 7.50
gypsum - hand/display specimen of sugary white rock gypsum
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4 left

gypsum - hand/display specimen of sugary white rock gypsum

$ 7.50

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gypsum - hand/display specimen of white rock gypsum - Weiser Ridge, Clark Co., Nevada 2 left
gypsum - hand/display specimen of white rock gypsum - Weiser Ridge, Clark Co., Nevada
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$ 7.50
gypsum - hand/display specimen of white rock gypsum - Weiser Ridge, Clark Co., Nevada
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gypsum - hand/display specimen of white rock gypsum - Weiser Ridge, Clark Co., Nevada

$ 7.50

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gypsum - sand selenite rose from a dry lake near Merzouga, Morocco
gypsum - sand selenite rose from a dry lake near Merzouga, Morocco
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$ 9.80
gypsum - sand selenite rose from a dry lake near Merzouga, Morocco
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gypsum - sand selenite rose from a dry lake near Merzouga, Morocco

$ 9.80

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gypsum - satin spar variety of gypsum from Morocco - display specimen 14" long 2 left
gypsum - satin spar variety of gypsum from Morocco - display specimen 14" long
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$ 15.00
gypsum - satin spar variety of gypsum from Morocco - display specimen 14" long
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2 left

gypsum - satin spar variety of gypsum from Morocco - display specimen 14" long

$ 15.00

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gypsum - satin spar variety of gypsum from Morocco - hand/display specimen 14" long 2 left
gypsum - satin spar variety of gypsum from Morocco - hand/display specimen 14" long
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$ 12.50
gypsum - satin spar variety of gypsum from Morocco - hand/display specimen 14" long
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2 left

gypsum - satin spar variety of gypsum from Morocco - hand/display specimen 14" long

$ 12.50

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gypsum - satin spar variety of gypsum from Morocco - Unit of 5 student specimens
gypsum - satin spar variety of gypsum from Morocco - Unit of 5 student specimens
-
$ 4.20
gypsum - satin spar variety of gypsum from Morocco - Unit of 5 student specimens

gypsum - satin spar variety of gypsum from Morocco - Unit of 5 student specimens

$ 4.20

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gypsum - teaching hand specimen of rock gypsum from Weiser Ridge, Clarke County, Nevada 2 left
gypsum - teaching hand specimen of rock gypsum from Weiser Ridge, Clarke County, Nevada
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$ 7.50
gypsum - teaching hand specimen of rock gypsum from Weiser Ridge, Clarke County, Nevada
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2 left

gypsum - teaching hand specimen of rock gypsum from Weiser Ridge, Clarke County, Nevada

$ 7.50

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gypsum - teaching hand specimen of sugary white rock gypsum 1 left
gypsum - teaching hand specimen of sugary white rock gypsum
-
$ 7.50
gypsum - teaching hand specimen of sugary white rock gypsum
1 left

gypsum - teaching hand specimen of sugary white rock gypsum

$ 7.50

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gypsum - teaching student specimens of sugary white rock gypsum - Unit of 5 specimens
gypsum - teaching student specimens of sugary white rock gypsum - Unit of 5 specimens
-
$ 4.20
gypsum - teaching student specimens of sugary white rock gypsum - Unit of 5 specimens
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gypsum - teaching student specimens of sugary white rock gypsum - Unit of 5 specimens

$ 4.20

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howlite - set of 6 typical small nodules of calcium silicoborate Sold Out
howlite - set of 6 typical small nodules of calcium silicoborate
-
$ 7.50
howlite - set of 6 typical small nodules of calcium silicoborate
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howlite - set of 6 typical small nodules of calcium silicoborate

$ 7.50

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

$ 7.50

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

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

$ 7.50

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

$ 7.50

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

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

$ 4.20

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

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

$ 4.20

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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 - teaching student specimens of limonite, with part converted to yellow ochre - UNIT OF 5 SPECIMENS Sold Out
limonite - teaching student specimens of limonite, with part converted to yellow ochre - UNIT OF 5 SPECIMENS
-
$ 4.20
limonite - teaching student specimens of limonite, with part converted to yellow ochre - UNIT OF 5 SPECIMENS
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limonite - teaching student specimens of limonite, with part converted to yellow ochre - UNIT OF 5 SPECIMENS

$ 4.20

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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 2 left
magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate
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$ 7.50
magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate
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2 left

magnesite - teaching hand specimen of very light gray to white earthy magnesium carbonate

$ 7.50

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