gemstone
White Buffalo Turquoise (or Howlite/Magnesite)
Calcite/Dolomite or Magnesite with Chert/Quartz inclusions
Hardness varies depending on exact composition (usually 3.5 to 7), black and white color, vitreous to dull luster, massive habit, uneven fracture.
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Physical properties
Hardness varies depending on exact composition (usually 3.5 to 7), black and white color, vitreous to dull luster, massive habit, uneven fracture.
Formation & geological history
Formed in veins and nodules in sedimentary or metamorphic rocks, often associated with magnesium-rich environments.
Uses & applications
Commonly used in lapidary arts, jewelry making, and as ornamental stones.
Geological facts
Often marketed as 'White Turquoise' but is typically chert, magnesite, or howlite with black matrix.
Field identification & locations
Identified by its striking black and white contrast. Found in the Southwestern US and other locations.
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