7076850
Eisco™ Porphyritic Granite Specimen
Porphyritic Granite Specimen is a must-have sample when discussing rock types, rock cycle, formation, classification, and identification of igneous rocks.
Manufacturer: Fischer Scientific
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Product Type
Igneous Rock, Porphyritic Granite
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Description
- Large crystals in variety of shapes and colors Felsic plutonic rock ideal for lessons in mineral identification and bulk rock chemistry For comparing cooling rates between samples with differently-sized crystals Correlates well to Next Generation Science Standards Evidence Statements Large crystals are indicative of slow cooling rate, and make mineral identification simple