
mineral
Red Quartz (Hematoid Quartz)
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale); Color: Translucent to transparent with red, orange, or brownish-red inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.
- Hardness
- 7 (Mohs scale)
- Luster
- Vitreous
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Physical properties
Hardness: 7 (Mohs scale); Color: Translucent to transparent with red, orange, or brownish-red inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Cleavage: None (conchoidal fracture); Specific Gravity: 2.65.
Formation & geological history
Formed in hydrothermal veins or pegmatites where silica-rich fluids mix with iron oxide (hematite or limonite). The red color can be a surface coating or internal inclusions layered during crystal growth.
Uses & applications
Mostly used for ornamental objects, tumbled stones for collectors, wire-wrapped jewelry, and by metaphysical practitioners for 'grounding' energy.
Geological facts
Also known as Fire Quartz or Harlequin Quartz, it is valued for its unique 'starburst' or 'flaky' red inclusions that look like fire trapped inside the crystal.
Field identification & locations
Identify in the field by its hardness (will scratch glass), lack of cleavage, and the presence of internal red specks or moss-like inclusions rather than a solid opaque red color found in jasper.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous