mineral

Tumbled Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Hardness: 7 on Mohs scale. Color: Milky white, cream, with brownish-orange iron oxide staining/inclusions. Luster: Vitreous to waxy when polished. Crystal structure: Trigonal/Hexagonal. Cleavage: None (conchoidal fracture).

Hardness: 7 on Mohs scale
Luster: Vitreous to waxy when polished

Identified July 27, 2026More mineral →

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Physical properties

Formation & geological history

Formed through hydro-thermal processes and igneous rock crystallization. The milky appearance is caused by tiny gas/liquid inclusions trapped during crystal growth. Iron oxides later stained the fractures and surface.

Uses & applications

Commonly used as decorative tumbled stones, pocket stones, in lapidary projects, and in crystal healing practices.

Geological facts

Quartz is one of the most abundant minerals on Earth's surface. Milky quartz gets its opaque white appearance from fluid inclusions, which are microscopic bubbles of liquids or gases trapped during crystal formation.

Field identification & locations

Can be identified by its hardness (scratches glass), milky translucency, rounded smooth tumbled texture, and reddish-brown iron staining in crevices. Found in quartz veins, pegmatites, and gravel deposits worldwide.

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