• Fluorite
  • Fluorite


$300.00   €244  £220.00 approx.  

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

ID: CC20928
The Sherry Twins Pocket at Lady Annabella mine has produced many outstanding specimens of sherry-coloured Fluorite which exhibit a good daylight fluorescence, a property not widely observed in the Lady Annabella Fluorites. With crystals measuring 3.5 x 2.8 x 2.4 cm and 3.8 x 3.3 x 2.2 cm, this ex-matrix interpenetrant twin grades from quite gemmy transparent light sherry-brown Fluorite adjacent to the crystal faces down to milky-white translucent Fluorite with opaque areas at the crystal roots. Occasional snowflake-like bursts of milky-white Fluorite occur within the sherry zones. In sunlight the specimen has a rich warm mauve daylight fluorescence. Under LWUV the crystal outer edges fluoresce bright intense lavender forming an outline framework while within this the face centres emit a deep lilac fluorescence.

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.


5.0 × 5.2 × 4.5 cm
Fluorite and Halides, Latest Additions
Sherry Twins Pocket, Lady Annabella Mine, Eastgate, Weardale, County Durham, England, Europe

Minerals on Specimen

Minerals on specimen

Related Mineral Specimens

Fluorite and Sterling Sliver drop earrings with pendant
 Diana Maria Mine, Frosterley, Weardale, Co. Durham, England, Europe
NEW!  A set with emerald-cut Fluorites!  The drop earrings are 8 x 10 mm with an...
 Riemvasmaak, Kakamas, Northern Cape Province, South Africa
A stunning epitaxial cluster of light emerald-green octahedral Fluorite crystals from Riemvasmaak in...
 Riemvasmaak, Kakamas, Northern Cape Province, South Africa
A neat specimen of classic octahedral gemmy green intergrown Fluorite crystals from Riemvasmaak,...
Fluorite on Quartz
 Akchatau Mine, Akchatau, Karagandy Province, Kazakhstan, Asia
This rather spectacular octahedral Fluorite, pierced by two parallel smoky Quartz crystals, is from...