Fluorite (twinned crystals) with Siderite from Boltsburn Mine, Rookhope, County Durham, England
Photo below under shortwave ultraviolet illumination:
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Photo below under longwave ultraviolet illumination:
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| DESCRIPTION: | No. 90057
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| Mineral: | Fluorite (twinned crystals) with Siderite
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| Locality: | Boltsburn Mine, Rookhope, County Durham, England |
| Description: | Cluster of interpenetrant twinned lustrous transparent purple fluorite crystals to 28 mm with partial overgrowth of brown siderite crystals to 3 mm in rounded aggregates to 12 mm diameter. The fluorite fluoresces violet under LW-SW UV illumination. Ex. Rock Currier (1940-2015) Collection #1549; originally acquired from Herb Obodda; ex. Wards |
| Overall Size: | 7.5x5.5x4 cm |
| Crystals: | 1-28 mm |
| Archived: | For reference only |
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