Mineral

Milky Quartz (with potential inclusion of feldspar)

Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness: 7 on the Mohs scale; Color: White to translucent/pale tan; Luster: Vitreous to greasy; Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Hardness: 7 on the Mohs scale
Color: White to translucent/pale tan
Luster: Vitreous to greasy

Identified March 20, 2026More mineral →

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Physical properties

Hardness: 7 on the Mohs scale; Color: White to translucent/pale tan; Luster: Vitreous to greasy; Crystal Structure: Hexagonal (trigonal); Cleavage: None (conchoidal fracture); Specific Gravity: 2.65

Formation & geological history

Formed through hydrothermal processes or crystallization from cooling magma in igneous veins and pegmatites. It is found in geological formations ranging from the Precambrian era to recent volcanic activity.

Uses & applications

Used in the production of glass, ceramics, and electronics; also used as an abrasive, in construction as aggregate, and in landscaping or as a collector specimen.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Milky quartz gets its characteristic white color from microscopic fluid inclusions of gas or liquid trapped during crystal growth.

Field identification & locations

Identify in the field by its hardness (it can scratch glass), lack of cleavage, and translucent 'milky' appearance. It is found globally, common in mountain ranges and riverbeds. Collectors should look for distinct crystal faces or points.