{"product_id":"eisco-raw-limestone-chalk-sedimentary-rock-specimen-hand-sample-approx-3-geologist-selected-hand-processed-great-for-science-classrooms","title":"EISCO Raw Limestone Chalk, Sedimentary Rock Specimen - Hand Sample - Approx. 3\" - Geologist Selected \u0026 Hand Processed - Great for Science Classrooms","description":"\u003ch3\u003eEISCO Raw Limestone Chalk, Sedimentary Rock Specimen - Hand Sample - Approx. 3\" - Geologist Selected \u0026amp; Hand Processed - Great for Science Classrooms\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eRaw Limestone Chalk Specimen Single Hand Sample, Approx. 3\" Limestone is made\nup of organic material, primarily calcium carbonate. The chalk variety\nconsists of the shells of coccolithophores, small platy animals that stack\ntogether and powder easily. Large layers of chalk indicate a low-oxygen\nenvironment, most likely ancient seafloor beds. Ideal for teaching students\nabout rounding and sorting, as well as for identification \u0026amp; classification\nexercises. Provides an excellent example of chemically formed sedimentary\nrock. While each specimen will vary slightly in shape, size and color, it will\nmeasure approximately 3\" in length. Each is individually packaged, labeled \u0026amp;\nbarcoded for easy identification and storage. Selected \u0026amp; Processed by a\nGeologist. Each and every specimen is selected and hand processed by an actual\ngeologist, ensuring that each sample exhibits defining features. Rocks and\nminerals are sourced from a variety of locations around the world and are\nprocessed by hand in Victor, NY. Technical Support Always feel free to reach\nout to our team of scientists and geologists for additional information, or to\nassist you with any questions regarding our rock and mineral samples.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n  \u003cul class=\"a\"\u003e\n         \u003cli\u003eLIMESTONE CHALK | Limestone is made up of organic material, primarily calcium carbonate. The chalk variety consists of the shells of coccolithophores, small platy animals that stack together and powder easily. Large layers of chalk indicate a low-oxygen environment, most likely ancient seafloor beds\u003c\/li\u003e\n         \u003cli\u003eGREAT FOR GEOLOGY CLASSROOMS | Ideal for identification \u0026amp; classification exercises. Provides an excellent example of chemically formed sedimentary rock\u003c\/li\u003e\n         \u003cli\u003eGEOLOGIST SELECTED | Each specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features\u003c\/li\u003e\n         \u003cli\u003eLOCALLY PROCESSED | Our rock and mineral samples are sourced from a variety of locations around the world and are processed in Victor, NY\u003c\/li\u003e\n         \u003cli\u003eINDIVIDUALLY PACKAGED \u0026amp; LABELED | Each specimen sample is packaged in a transparent bag, and is labeled \u0026amp; barcoded for easy identification\u003c\/li\u003e\n  \u003c\/ul\u003e","brand":"EISCO","offers":[{"title":"Default Title","offer_id":43777187217588,"sku":"B0CC3QF8GK","price":141.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/9906\/1172\/files\/B0CC3QF8GK.jpg?v=1735112009","url":"https:\/\/auspowers.com\/products\/eisco-raw-limestone-chalk-sedimentary-rock-specimen-hand-sample-approx-3-geologist-selected-hand-processed-great-for-science-classrooms","provider":"AusPower Australia","version":"1.0","type":"link"}