| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Sphalerite - Spinel-law twins |
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| DESCRIPTION: | No. 21849 |
| Mineral: | Sphalerite - Spinel-law twins |
| Locality: | Naica Mine, Saucillo, Chihuahua, Mexico |
| Description: | Lustrous, black sphalerite crystals up to 7 mm on matrix coated with white calcite crystals up to 3 mm. All of the sphalerite crystals are Spinel-law twins. |
| Overall Size: | 5x4x3 cm |
| Crystals: | 2-7 mm |
| Archived: | For reference only |
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