mineral

Quartz (Druzy/Macro-crystalline)

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale; Color: White to translucent; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture.

Hardness: 7 on Mohs scale
Color: White to translucent
Luster: Vitreous to waxy

Identified April 8, 2026More mineral →

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Physical properties

Hardness: 7 on Mohs scale; Color: White to translucent; Luster: Vitreous to waxy; Crystal structure: Trigonal/Hexagonal; Cleavage: None/Conchoidal fracture.

Formation & geological history

Formed through the cooling of silica-rich hydrothermal fluids in cavities or veins within igneous or sedimentary host rocks. Can be found in geological formations ranging from Precambrian to Cenozoic.

Uses & applications

Used in glassmaking, electronics (piezoelectric properties), abrasives, and as a semi-precious gemstone in jewelry or for decorative mineral collections.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Small crystal clusters like this are often called 'Druzy' when they form a coating over a rock surface.

Field identification & locations

Identify in the field by its hardness (it will easily scratch glass) and lack of cleavage. Look for the characteristic hexagonal crystal faces even in small specimens.

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