{"product_id":"eisco-porphyritic-granite-coarse-white-marble-rock-specimens-12-pc","title":"EISCO Porphyritic Granite \u0026 Coarse White Marble Rock Specimens, 12 Pc","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRock Cycle Pairing: EISCO combines six raw porphyritic granite specimens with six coarse white marble specimens for 12 pieces in total. One type comes from cooling magma, the other from limestone reworked under pressure\u003c\/li\u003e\n\u003cli\u003eRead the Crystals: Large crystals in the porphyritic granite can be picked out without a lens, which keeps mineral identification simple for anyone new to igneous samples. Six pieces let a group work through them together\u003c\/li\u003e\n\u003cli\u003eEffervesces in Acid: Coarse white marble is a massive crystalline metamorphic rock that still reacts in acid, so it earns a place in identification exercises. It is mined heavily for buildings, furniture and architecture\u003c\/li\u003e\n\u003cli\u003eHand Processed in New York: Rocks and minerals for this set are sourced from locations worldwide, then finished by hand in Victor, New York. An actual geologist picks every piece so the traits you want to point out stay visible\u003c\/li\u003e\n\u003cli\u003eSorted \u0026amp; Barcoded: Specimens arrive in transparent bags that are labeled and barcoded, which keeps the two types easy to tell apart on a bench. Individual pieces differ a little in shape, size and color, at roughly 1 inch long\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EISCO","offers":[{"title":"Default Title","offer_id":52604607627484,"sku":"B0HJ97ZC72","price":34.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0913\/3020\/files\/41sf88sbblL.jpg?v=1790310262","url":"https:\/\/stemora.us\/products\/eisco-porphyritic-granite-coarse-white-marble-rock-specimens-12-pc","provider":"Stemora","version":"1.0","type":"link"}