• Fluorite
  • Fluorite
  • Fluorite
Fluorite and Halides

Fluorite

$1,800.00   €1,473  £1,330.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC20931
This gorgeous and quite spectacular cabinet specimen has a single elongated Fluorite crystal measuring 4.8 x 3.5 x 2.7 cm embedded at 45 degrees in a curved bed of translucent cloudy lilac and white Fluorite crystals to 1.8 cm. From the Sherry Twins Pocket at Lady Annabella mine, the primary crystal has smooth faces with a greasy to glassy lustre, much of which is quite transparent. The large crystal is a rich caramel-sherry with broad delicate, yet distinct, lavender bands around all its edges. Interestingly, under LWUV, the smaller crystals and the edges of the large crystal fluoresce bright and intense Lavender whereas the sherry faces are a much darker purple fluorescence. Note that the large crystal does have chipping along some edges but remains a spectacular specimen.

The Lady Annabella mine began specimen recovery operations in July 2020 within the former Eastgate Quarry, previously known as the Blue Circle Cement Quarry. This quarry began in the early 1960s, working an exposure of the Great Limestone, a major formation of Carboniferous age (Pendleian Substage), found across much of Northern England. Following uplift and fracturing, subsequent Fluorite mineralisation pervaded this area of County Durham, in the form of sub-vertical veins and near-horizontal metasomatic flats. Metasomatism is the chemical alteration of rock by hydrothermal fluids. Over the past 55 years, Fluorite from this quarry has become famous amongst collectors for its wide range of colours, colour variations and zonation. In just its first five months of operation, the Lady Annabella mine has produced a magnificent range of Fluorite specimens, many of which are colour variants and mixtures never before seen at this locality, nor even in the other famous mines throughout the Weardale Valley.

Details

Dimensions
7.0 × 12.0 × 7.0 cm
Categories
Fluorite and Halides, Latest Additions
Locality
Sherry Twins Pocket, Lady Annabella Mine, Eastgate, Weardale, County Durham, England, Europe

Minerals on Specimen

Minerals on specimen
Fluorite

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