Fluorite & Siderite
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West Boltsburn Mine, Rookhope, Weardale, Co. Durham, England
1038
Choice fluorite specimen of a rare blue colour from the famous Boltsburn mine. The glassy cubes are a mix of light and dark blue some dusted with a mix of siderite and calcite crystals. From a cavity worked in 2016. Sawn base
Formula: Fluorite CaF2 ; Siderite Fe2+CO3 ; Calcite CaCO3
Status: Sold
Dimensions: 120x110x65mm
Size: Large Cabinet (L)
Minerals of the English Midlands
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