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> Minerals
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Arsenopyrite
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| Arsenopyrite
 Panasqueira Mine, Couto Mineiro da Panasqueira, Panasqueira, Covilhã, Castelo Branco District, Portugal
Item-No.: MIN5440
Price: 75.00 EUR
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| Synonyms: |
Arsenical Iron, Arsenical Pyrites, Arsenomarcasite, Dalarnite, Plinian, Thalheimite |
| Classification: |
Sulfides, Arsenopyrite Group |
| Chemical formula: |
FeAsS |
| Crystal system: |
Monoclinic |
| Density (g/cm3): |
6,07 Measured - 6,18 Calculated |
| Tenacity: |
Brittle |
| Cleavage: |
Distinct/good, distinct on {001}; {010} in traces |
| Fracture: |
Irregular/Uneven |
| Hardness (Mohs): |
5,5 - 6 |
| Colour: |
Silver-white to steel-gray, may have a slight yellow appearance |
| Lustre: |
Metallic, Sub-Metallic |
| Streak: |
Gray-black |
| Application: |
The most important arsenic ore |
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