mineral
Quartz with Tourmaline inclusion (Tourmalinated Quartz)
Silicon Dioxide (SiO2) with Tourmaline inclusions
Hardness: 7 on Mohs scale. Color: White to translucent milky grey with black fibrous or acicular inclusions. Luster: Vitreous to dull. Crystal System: Trigonal.
- Hardness
- 7 on Mohs scale
- Luster
- Vitreous to dull
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Physical properties
Hardness: 7 on Mohs scale. Color: White to translucent milky grey with black fibrous or acicular inclusions. Luster: Vitreous to dull. Crystal System: Trigonal.
Formation & geological history
Formed in high-temperature hydrothermal veins and pegmatites where tourmaline needles crystallize within growing quartz.
Uses & applications
Popular as a decorative mineral specimen, tumbled stone, and gemstone for jewelry and lapidary art.
Geological facts
Black tourmaline inclusions inside quartz are known as schorl inclusions. This combination represents two distinct minerals growing in the same space.
Field identification & locations
Identify by looking for dark, needle-like or patch-like black inclusions suspended within translucent to milky white quartz matrix.
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