mineral

Clear Quartz

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale), Color: Colorless to milky white, Luster: Vitreous (glassy), Crystal Structure: Trigonal/Hexagonal, Cleavage: None (conchoidal fracture), Specific Gravity: 2.65

Identified March 9, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale), Color: Colorless to milky white, Luster: Vitreous (glassy), Crystal Structure: Trigonal/Hexagonal, Cleavage: None (conchoidal fracture), Specific Gravity: 2.65

Formation & geological history

Formed from molten magma cooling or from hydrothermal veins; found in all three types of rock environments across nearly all geological ages. This specific shape is a 'tumbled' or 'polished' point.

Uses & applications

Used in electronics for piezoelectric properties, glassmaking, abrasive industry, jewelry, and widely in metaphysical/crystal collecting.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Ancient Greeks believed it was ice that had frozen so hard it would never melt, which is why they called it 'krystallos' (ice).

Field identification & locations

Identify by its hardness (scratches glass), lack of cleavage, and hexagonal crystal habit. Common in pegmatites, mountains, and riverbeds globally. It is a staple for mineral collectors due to its clarity and varied forms.