mineral

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Hardness: 7 (Mohs scale); Color: Colorless to milky white; Luster: Vitreous/Glassy; Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Hardness: 7 (Mohs scale)
Color: Colorless to milky white
Luster: Vitreous/Glassy

Identified June 2, 2026More mineral →

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Physical properties

Hardness: 7 (Mohs scale); Color: Colorless to milky white; Luster: Vitreous/Glassy; Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments. This fragment appears to be a small quartz vein remnant or a grain of silica-rich rock deposited through erosion.

Uses & applications

Quartz is used in glassmaking, electronics (piezoelectric properties), abrasives, and jewelry/gemstones. Small raw fragments have no industrial value but are important geological markers.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. It is highly resistant to chemical and physical weathering, which is why it often persists as sand or small pebbles.

Field identification & locations

Identify by its ability to scratch glass and lack of cleavage planes. Found globally in almost all geological settings, particularly in river beds, beaches, and mountain outcrops.