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Name: |
bournonite (endellionite) |
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Class: |
Sulfides |
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Chemistry: |
Pb Cu Sb S3 |
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Color(s): |
gray, steelish-metallic streak: grayish |
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Hardness: |
3.0 |
SpecGrav: |
5.7 - 5.9 |
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Fracture: |
pseudo-conchoidal |
Cleavage: |
imperfect |
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Crystal: |
orthorhombic - dipyramidal, cubic looking, cog-whell type shapes. |
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Envronment: |
develops in mesothermal veins |
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Association: |
stibnite, galena, tetrahedrite, quartz, calcite |
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Locals: |
| Germany | France | England | Co., Ca., Az., Ut., USA | |
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Misc: |
Named after the French mineralogist, J. L. de Bournon. |
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Photos |
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1.) Ancash,Peru |
3.) Ancash,Peru |
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