Eisco Quartz - Rock Crystal Specimen (Mineral), Approx. 1" (3cm) Material_PVC Hollow-bodied for filling with water

Hollow-bodied for filling with water

and subcutaneous layers with embedded hair follicles

and lever-principle demonstrations

and triple bonds

Eisco Quartz - Rock Crystal Specimen (Mineral), Approx. 1" (3cm) Material_PVC Hollow-bodied for filling with waterQuartz sample approximately 1" (3cm) in size A classic mineral, quartz is useful during lessons on mineral hardness, luster, and fracture Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Euhedral crystal expression is perfect for collections Specimen comes in clear labeled and barcoded bag for ideal storage Quartz is one of the most abundant minerals on Earth.