mineral
Kowhaiwhai or Peach Quartz Pebble
Silicon Dioxide (Quartz), SiO2
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, peach to pinkish-orange color, vitreous luster, conchoidal fracture, trigonal crystal system.
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Physical properties
Hardness of 7 on the Mohs scale, peach to pinkish-orange color, vitreous luster, conchoidal fracture, trigonal crystal system.
Formation & geological history
Formed via hydrothermal veins or weathering out of igneous and metamorphic rocks, then smoothed by water action in river or coastal environments over long geological periods.
Uses & applications
Used primarily in lapidary work, jewelry making, and as a pocket specimen for rock collectors.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Peach coloration is typically caused by microscopic inclusions of iron or aluminum compounds.
Field identification & locations
Easily identified by its distinct hardness, lack of cleavage, and smooth waterworn shape; common in alluvial gravel deposits worldwide.
