mineral
Milky Quartz with Chlorite/Mica Inclusions
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness 7 on Mohs scale; milky-white to translucent with dark greenish-gray inclusions, vitreous to greasy luster, conchoidal fracture, and hexagonal crystal system.
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Physical properties
Hardness 7 on Mohs scale; milky-white to translucent with dark greenish-gray inclusions, vitreous to greasy luster, conchoidal fracture, and hexagonal crystal system.
Formation & geological history
Formed through hydrothermal precipitation in veins or pegmatites during metamorphic or igneous fluid cooling across diverse geological eras.
Uses & applications
Used in ornamental carvings, lapidary tumbled stones, silica sourcing in manufacturing, and as collectible specimens.
Geological facts
The milky appearance is caused by minute fluid and gas inclusions trapped during rapid crystal growth, while the green coloration often comes from chlorite or actinolite.
Field identification & locations
Easily identified by its ability to scratch glass (Mohs 7), lack of cleavage, and common occurrence in eroded riverbeds, quartz veins, and gravels worldwide.
