Quartz
Image: “Jon Zander (<a href="//commons.wikimedia.org/wiki/User:Digon3" title="User:Digon3">Digon3</a>)" (CC BY-SA 3.0)
Mineral NameQuartz
Chemical FormulaSiO2
Mohs Hardness7
Crystal Systemtrigonal
Lustervitreous
Streak Colorwhite
Cleavagenone
Fractureconchoidal
Specific Gravity2.65
Colorsclear, white, brownish
Transparencytranslucent
Type LocalityNot specified
Mineral GroupSilicates
Usesjewelry, industrial, collector
Associated Mineralsfeldspar, mica, calcite
Raritycommon
Description
The image displays a dense cluster of small, prismatic quartz crystals, ranging from clear to milky white, with some areas showing earthy brown staining or inclusions on a rocky matrix.
Geological Context
Quartz is a ubiquitous mineral found in a wide range of geological environments, including igneous, metamorphic, and sedimentary rocks, often crystallizing from hydrothermal solutions in veins and geodes.
