Blue Circle Cement Qy,
A lovely example of deep green penetration twinned fluorite crystals on matrix.
The crystals display nice violet phantoms and strong daylight fluorescence.
The Blue Circle Quarry is one of 3 Weardale locations to have produced these nice deep green fluorite crystals, the other being the Heights Quarry and the famous Rogerley Mine.
Size – 37 x 35 x 35mm
Weight – 36g
The specimen will come fully labelled in a specimen display box.
Please note that magnification of 20x or greater is required to view these crystals effectively.