M MineralystRock & Mineral Guide
Mineral

Milky Quartz

Milky Quartz — reference photo

Milky Quartz is a mineral with the chemical formula SiO2. It has a Mohs hardness of 7 (Mohs scale) and vitreous to glassy luster.

Milky Quartz properties

TypeMineral
Chemical formulaSiO2
Mohs hardness7 (Mohs scale)
LusterVitreous to glassy
Typical colorsUsually white or translucent; can also appear in shades of gray
FormationForms in a variety of geological environments, particularly in igneous and metamorphic rocks
Rarity3 / 10

Mohs hardness 7 — hard

1 · Talc5 · Apatite10 · Diamond
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