| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Bulgaria > Sphalerite (Spinel-law twinned crystals) |
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| DESCRIPTION: | No. 49768 |
| Mineral: | Sphalerite (Spinel-law twinned crystals) |
| Locality: | Krushev Dol Mine, Madan District, Rhodope Mountains, Bulgaria |
| Description: | Lustrous dark sphalerite that are Spinel-law twinned on the octahedral {111} face and the twin planes are distinct and easy to see. The sphalerite appears to be black, but is actually translucent yellow (rare) when rear-illuminated. |
| Overall Size: | 6x3.5x3.5 cm |
| Crystals: | 2-14 mm |
| Archived: | For reference only |
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