Dragon Minerals - Update January 20, 2019

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RF403: Fluorite - $1000
Rogerley Mine, Rogerley Quarry, Weardale, County Durham, England
Large cabinet - 21 x 13 x 8 cm (8.3 x 5.1 x 3.1 inches)
Weight - 3652 grams (8.04 pounds)
ex Roy Foerster collection
Specimen status: Available     Send an email to order

A huge specimen for this locality! A typical Rogerley Mine gray, silicified limestone matrix hosts a mound of very deep green fluorite crystals. Individual crystals range from transparent to opaque, and many have white inclusions (also quite typical for Rogerley Mine fluorite). The largest individual crystal measures 3.0 cm along its edge. Absolutely brilliant blue fluorescence under longwave UV (second photo; also blue but attenuated under shortwave UV). A few missing corners scattered about but this is lost I think among all the green. The matrix base has been sawn, but diamond saw cuts are commonly used to remove specimens from the very tough surrounding rock, to avoid damage. (the basal saw cuts also provides a very nice display base.) Displays quite nicely at numerous angles. This specimen will make a very definite green statement in any mineral cabinet! We're calling this specimen the Jolly Green Giant.

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