Quartz (Hematite included)
Image: Robert M. Lavinsky (CC BY-SA 3.0)
Mineral NameQuartz (Hematite included)
Chemical FormulaSiO2
Mohs Hardness7
Crystal Systemtrigonal
Lustervitreous
Streak Colorwhite
Cleavagenone
Fractureconchoidal
Specific Gravity2.65
Colorsred, reddish-brown
Transparencytranslucent
Type LocalityUruáchic, Municipio de Uruáchic, Chihuahua, Mexico
Mineral GroupSilicates
Usesjewelry, collector, industrial
Associated Mineralshematite
Rarityuncommon
Description
A single, well-formed, translucent red quartz crystal with a prominent pyramidal termination, exhibiting a rich reddish hue due to hematite inclusions.
Geological Context
Quartz forms in various geological settings, including igneous, metamorphic, and sedimentary rocks. Hematite-included quartz typically crystallizes in hydrothermal veins or pegmatites where iron-rich fluids are present during its formation.
