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Name: |
crocoite |
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Class: |
Tungstates/Molybdates |
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Chemistry: |
PbCrO4 lead chromate |
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Color(s): |
red,orange, yellow-orange Streak: orange |
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Hardness: |
2.5 - 3.0 |
SpecGrav: |
5.9 - 6.1 |
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Fracture: |
conchoidal |
Cleavage: |
perfect |
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Crystal: |
monoclinic (sometimes hallow, elongated crystals) |
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Envronment: |
alteration zone in hydrothermal replacements |
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Association: |
wulfenite, galena, cerussite, mimetite, vanadinite |
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Locals: |
| Germany | USSR | Brazil | Tasmania | California, Arizona/USA | |
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Misc: |
strong double refraction, soluble in HCl, from the Greek "krokos", meaning "saffron" for its strong color. |
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Photos |
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1.) Adelaide Mine, Dundas, Tasmania |
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