| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Sphalerite (Spinel-law twins) on Pyrite |
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| DESCRIPTION: | No. 57518 |
| Mineral: | Sphalerite (Spinel-law twins) on Pyrite |
| Locality: | Zacatecas, Mexico |
| Description: | Lustrous black sphalerite crystals to 14 mm intermixed with lustrous yellow-metallic pyrite crystals to 4 mm on massive pyrite. Many of the sphalerite crystals are lamellar-twinned following the Spinel Law of twinning on the {111} octahedral plane. |
| Overall Size: | 8.5x7x3 cm |
| Crystals: | 1-14 mm |
| Archived: | For reference only |
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