mineral
Green Quartz
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale, greenish color due to inclusions, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, greenish color due to inclusions, vitreous luster, trigonal crystal system, conchoidal fracture with no true cleavage, specific gravity of 2.65.
Formation & geological history
Formed in hydrothermal veins and pegmatites, often colored by inclusions of minerals such as chlorite, actinolite, or fuchsite.
Uses & applications
Used in jewelry, decorative items, and crystal collections.
Geological facts
Green quartz is sometimes marketed commercially under the trade name 'prasiolite', though true prasiolite is typically heat-treated amethyst.
Field identification & locations
Identified by its green color, conchoidal fracture, and characteristic quartz hardness. Found worldwide in silica-rich environments.
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