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grey Fluorite crystals with dark purple cores and blue outer zones up to 1.7 cm, showing colour change to blue-green in sunlight, dimensions of the specimen: 8 x 6.5 x 4 cm, Shaft 78, Frohnau (Author: Thomas Uhlig)
| Dimensions: | 600 x 572 |
| File size: | 55.49 kbytes |
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