| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Galena (Spinel Law twinned) on Calcite with Chalcopyrite |
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| DESCRIPTION: | No. 62843 |
| Mineral: | Galena (Spinel Law twinned) on Calcite with Chalcopyrite |
| Locality: | Naica District, Saucillo, Chihuahua, Mexico |
| Description: | Lustrous gray-metallic galena crystals to 33 mm on white calcite with brassy yellow-metallic chalcopyrite. The galena crystals are twinned on the {111} plane following the Spinel Law of isometric twinning, resulting in tabular (platy) hexagonal form. Ex. Dr. N. Luppescu, originally acquired from Evan Jones |
| Overall Size: | 3.5x3x2 cm |
| Crystals: | 1-33 mm |
| Archived: | For reference only |
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