Quartz Mineral Specimen, Quartz Mineral Specimen For Use In Classroom Identification Labs And Exercises., Each

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Quartz | one of the most abundant minerals on earth. The tightly packed framework of silica tetrahedral that makes up this mineral gives it a high hardness of 7, a lack of cleavage planes, and a distinct euhedral crystal habit great for geology classrooms | a must-have mineral for any specimen collection. Quartz is useful during lessons on mineral hardness, luster, and fracture 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 identificatio