Quartz
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Mineral NameQuartz
Chemical FormulaSiO2
Mohs Hardness7
Crystal Systemtrigonal
Lustervitreous
Streak Colorwhite
Cleavagenone
Fractureconchoidal
Specific Gravity2.65
Colorscolorless, white, milky, gray, brown, black, purple, pink, yellow, green
Transparencytransparent
Type LocalityLandsverk 1 quarry in Evje, Norway
Mineral GroupSilicates
Usesjewelry, industrial, electronics, construction, collector
Associated Mineralsfeldspar, mica, tourmaline, calcite, pyrite
Raritycommon
Description
The showcase displays a diverse collection of quartz specimens, featuring large milky white masses, clusters of clear to smoky gray crystals, and smaller formations with various hues including pink and purple.
Geological Context
Quartz is a common rock-forming mineral found in igneous, metamorphic, and sedimentary rocks, crystallizing from silica-rich magmas or hydrothermal fluids in veins and geodes.
