The faint brownish to colour at the centre of the fluorite explodes like a supernova when hit with a UV torch! It also has inclusions, possibly pyrite or some other sulphide. But it is the UV response that really makes it pop. It is likely to be an organic bituminous...
Yellow hemimorphite crystals on colourless cubes of fluorite. The yellow is likely due to iron staining. Ex Art Smith Collection. Ex Nick Peters (UK). Width of view 8.63mm. Stack of 70 images. Click on the image below for a higher resolution version.
Tiny smithsonite crystals on interpenetrant fluorite and bladed barite crystals, on quartz. Acquired from Philip Grounds, Bay Minerals, in 2012. Width of view 5mm. Stack of 70 images. Click on the image below for a higher resolution version.
Rounded honey-coloured jellybean smithsonite crystals with bladed barite. Acquired from Philip Grounds, Bay Minerals, in 2012. Width of view 5mm. Stack of 55 images. Click on the image below for a higher resolution version.
Purple cubes with small modified edges with tiny brassy marcasite crystals. Some of the matrix is vein calcite that fluoresces bright red. Width of view 9mm. Stack of 130 images.
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
Blue John, Richard Bell
Large plate of cockscomb barite. Ex Gregory, Bottley and Lloyd. Similar to Mindat photo 260605. A specimen of baryte, bearing an old adhesive paper label reading: Cockscomb Baryties, from Crich , in old white card tray, from the Gregory, Bottley, and Lloyd collection. James Reynolds Gregory (1832-1899) was one of the...
Bernie & Margaret Day Collection. Kevin Johns
