| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Illinois > Fluorite (penetration twins) |
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| DESCRIPTION: | No. 34273 |
| Mineral: | Fluorite (penetration twins) |
| Locality: | Denton Mine, Harris Creek District, Hardin County, Illinois |
| Description: | Transparent color zoned fluorite crystals up to 16 mm with scattered metallic chalcopyrite crystals up to 3 mm. Two crystals are twinned on the (111) plane resulting in an unusual penetration twin. Color varies from yellow to purple. |
| Overall Size: | 38x25x20 mm |
| Crystals: | 1-16 mm |
| Archived: | For reference only |
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