mineral
Milky Quartz with Inclusions
Silicon Dioxide (SiO2) with mineral inclusions
Hardness: 7 (Mohs scale), Color: White to off-white with dark green/brown inclusions, Luster: Vitreous to greasy, Crystal Structure: Trigonal (massive), Specific Gravity: 2.65
Identified More mineral →
Explore Milky Quartz with Inclusions in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 7 (Mohs scale), Color: White to off-white with dark green/brown inclusions, Luster: Vitreous to greasy, Crystal Structure: Trigonal (massive), Specific Gravity: 2.65
Formation & geological history
Formed from hydrothermal solutions or cooling magma in veins and pegmatites. The rounded shape suggests it was eroded and transported by water (river or glacial action).
Uses & applications
Commonly used as decorative garden stones, in construction aggregates, as a source for silicon in semiconductors, and as low-cost collector specimens.
Geological facts
Milky quartz gets its color from tiny fluid inclusions of gas or liquid trapped during crystal growth. Quartz is the second most abundant mineral in Earth's continental crust.
Field identification & locations
Identify by its hardness (scratches glass), waxy/glassy luster, and lack of cleavage (it breaks with conchoidal fracture). Very common in riverbeds and mountainous terrain worldwide.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock