mineral

Milky Quartz with Chlorite inclusion

Silicon Dioxide (SiO2) with Chlorite group inclusions

Hardness: 7 (Mohs scale), Color: Translucent white to creamy yellow with dark green inclusions, Luster: Vitreous to greasy, Crystal Structure: Hexagonal (trigonal), Cleavage: None (conchoidal fracture), Specific Gravity: 2.65

Identified June 18, 2026More mineral →

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Physical properties

Formation & geological history

Formed in hydrothermal veins or pegmatites as silica-rich fluids cool. The green inclusion is Chlorite, which often forms as a secondary mineral during metamorphic or hydrothermal processes. Found across many geological ages.

Uses & applications

Large-scale quartz is used in glassmaking and electronics (piezoelectricity). Included specimens are popular for rock tumbling, metaphysical collecting, and jewelry lapidary.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. Green inclusions like these are often referred to as 'phantom' inclusions if they follow the crystal's growth shape.

Field identification & locations

Identify by its hardness (it will scratch glass) and waxy/vitreous luster. Common in riverbeds and mountainous terrain globally. Collectors look for clarity and the definition of the inclusion.

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Arenite (SiO2 based)

sedimentary

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Nephrite Jade

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Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral