mineral
Quartz (Peach/Orange)
Silicon Dioxide (SiO2)
Hardness of 7 on the Mohs scale; color ranges from peach to orange due to microscopic inclusions; vitreous luster; hexagonal 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; color ranges from peach to orange due to microscopic inclusions; vitreous luster; hexagonal crystal system; conchoidal fracture with no true cleavage; specific gravity of 2.65.
Formation & geological history
Forms in a wide variety of geological environments, most commonly in igneous, metamorphic, and sedimentary rocks, often precipitated from silica-rich hydrothermal solutions over millions of years.
Uses & applications
Used in electronics, watchmaking, glass production, ornamental objects, and as a popular gemstone in jewelry and crystal collecting.
Geological facts
Quartz is one of the most abundant and widely distributed minerals on Earth's continental crust. Its piezoelectric properties make it essential for modern electronics and timekeeping devices.
Field identification & locations
Can be identified in the field by its high hardness (scratches glass), lack of cleavage, and characteristic conchoidal fracture. Found worldwide in riverbeds, pegmatites, and veins.
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