Additionally referred
to as Blue Asbestos.A grey-blue to leek-inexperienced, fibrous type
of the amphibole mineral riebeckite. It has a higher tensile power
than chrysotile asbestos but is way much less warmth-resistant,
fusing to black glass at relatively low temperatures. The major
business source is South Africa, the place it occurs in ironstone;
it is also found in Australia and Bolivia.
Crocidolite is usually changed by quartz, forming the chatoyant
semiprecious gems tigereye and hawk's-eye.
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