EISCO 생 석회암 분필, 퇴적암 표본 - 약 2.5cm(1인치) - 지질학자 선택 및 수작업 처리 - 과학 교실 실험실에 적합
EISCO Raw Limestone Chalk, Sedimentary Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms Labs
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상품 특징
- LIMESTONE 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
- GREAT FOR GEOLOGY CLASSROOMS | Ideal for identification & classification exercises. Provides an excellent example of chemically formed sedimentary rock
- GEOLOGIST SELECTED | Each specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features
- LOCALLY PROCESSED | Our rock and mineral samples are sourced from a variety of locations around the world and are processed in Victor, NY
- INDIVIDUALLY PACKAGED & LABELED | Each specimen sample is packaged in a transparent bag, and is labeled & barcoded for easy identification