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In the western US it is found at many locations in Arizona
polychrome Jasper
a nickel-magnesium silicate ore
#minerals #mineral #agate
Specific Gravit
Tiger Eye Aura Crystal Bracelet succulents In the western US itIn the late 1800s, geologists thought that tiger's eye and the related blue green stone, hawk's eye, were quartz replacements of crocidolite a blue form of asbestos. They believed that quartz replaced most of the crocidolite, and the remaining asbestos provided the bluish color. Tiger's eye is formed when parallel veins of crocidolite (blue asbestos) fibres are first altered to iron oxides and then replaced by silica. As a result it is more opaque,