North American Auction Company
Live Auction

Fine Montana Collector Sale - April 2023

Sat, Apr 22, 2023 11:00AM EDT
Lot 497

Large Fluorite Gem From Rogerley Mine In England

Estimate: $300 - $500

Bid Increments

Price Bid Increment
$50 $10
$100 $25
$500 $50
$1,000 $100
$2,000 $250
$5,000 $500
$10,000 $1,000
$50,000 $2,500
For your consideration is this large, natural piece of Fluorite from the Rogerley Mine in England. The Rogerley quarry and mine are located just west of the village of Frosterley in County Durham, on the north side of the A689 road to Stanhope. The old limestone quarry at Rogerley was initially investigated in 1972 by Lindsay Greenbank and Michael “Mick” Sutcliffe where they discovered two mineralized veins. Rogerley became the first commercial mineral specimen mine in Britain and for the past 47 years it has been worked on and off for its magnificent green fluorite. The Fluorite is also famous for its wonderful daylight fluorescence which causes the emerald-green crystals to glow an intense and vibrant purple. This large piece of Fluorite shows colors of green, white, grey, black and hues of brown throughout. The crystal formations show cube shapes due to the way the calcium and fluorine atoms combine. The piece measures 8 3/4" L x 8 1/2" W x 3 1/2" H.

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