{"product_id":"migmatite-gneiss-a-gneiss-that-shows-remelting-from-india-display-specimen","title":"migmatite gneiss - a gneiss that shows remelting, from India - display specimen","description":"\u003cp class=\"p1\"\u003e\u003cspan style=\"color: #8c0505;\"\u003e\u003cb\u003eMigmatites form by the partial melting of gneisses.  Lighter-colored silica-rich crystalline bands, called leucosomes, are compositionally similar to granite and represent partial melting and segregation of the granitic melt. The darker biotite and hornblende-rich bands, called melanosomes, with higher melting points, are unmelted and preserve the original metamorphic texture of the gneiss, so this rock straddles the boundary between metamorphic and igneous realms. The chemical composition of migmatites is highly variable, and specific details depend on the geological context, the parent rock, and the metamorphic conditions. \u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"color: #8c0505;\"\u003e\u003cb\u003eThis Precambrian migmatite, with a granitic parent, comes from a quarry in India, near the village of Chendrapalli, Krishnagiri District, East Ghats, in the state of Tamil Nadu. There, large blocks of this colorful rock are quarried, slabbed and polished and sold as a decorative stone.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eThis specimen is polished on one side. The pencil is 5 1\/2\" long, for scale.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cb\u003eThis specimen is on hold for a college and is not available.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan style=\"color: #ff2a00;\" class=\"s1\"\u003e\u003cb\u003eSelect a specimen:\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003e If more than one specimen is shown, y\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003e\u003cb\u003eou can select a particular specimen by telling us what is in the photo with it, a black and silver pen, a black mechanical pencil, or one of those plus some number of coins, or you can let us make the selection.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eMaking multiple purchases?\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e Click on the \"combine shipping\" button in the shopping cart. We'll send an invoice with combined shipping. A link in that invoice will bring you back to checkout, no hassle.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\" style=\"color: #ff2a00;\"\u003e\u003cb\u003eShipping:\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e By Priority Mail or Parcel Select Ground, whichever is cheaper. Click \u0026gt; \u003c\/b\u003e\u003ca href=\"https:\/\/geologicalspecimensupply.com\/pages\/about-shipping\"\u003e\u003cspan class=\"s2\" style=\"color: #2b00ff;\"\u003e\u003cb\u003ehere\u003c\/b\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cb\u003e \u0026lt; for shipping rates. See comment at \u003c\/b\u003e\u003cspan class=\"s1\" style=\"color: #ff2a00;\"\u003e\u003cb\u003eNote!\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e Use back button to return to this page.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003e.\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Geological Specimen Supply","offers":[{"title":"Default Title","offer_id":42400024428631,"sku":null,"price":40.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0960\/7650\/files\/migmatiteIndiaD40pen2coins14_2e43ef83-0987-4fa6-bffb-5eee048f3fb8.jpg?v=1772738666","url":"https:\/\/geologicalspecimensupply.com\/products\/migmatite-gneiss-a-gneiss-that-shows-remelting-from-india-display-specimen","provider":"Geological Specimen Supply","version":"1.0","type":"link"}