metamorphic
Quartz with Mafic/Chlorite Veins
Silicon Dioxide (SiO2) with Chlorite/Epidote cross-veining
Hardness 6-7 on Mohs scale (quartz matrix), color is creamy off-white to beige with dark green to black vein networks, vitreous to dull luster, crystalline to microcrystalline structure.
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Physical properties
Hardness 6-7 on Mohs scale (quartz matrix), color is creamy off-white to beige with dark green to black vein networks, vitreous to dull luster, crystalline to microcrystalline structure.
Formation & geological history
Formed via hydrothermal activity where silica-rich fluids crystallized into quartz, followed by later-stage fracturing and infilling by chlorite, epidote, or actinolite-bearing fluids in a metamorphic or igneous setting.
Uses & applications
Mainly collected as a landscape rock, decorative specimen, or rough material for lapidary work and rock tumbling.
Geological facts
The contrasting dark green veins create striking network patterns called brecciation or veinlet systems, showing multiple stages of tectonic cracking and fluid injection.
Field identification & locations
Identified by the distinct white/beige hard quartz body dissected by softer, dark green mineral veins. Commonly found in riverbeds, glacial tills, and metamorphic terrains worldwide.
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