{"product_id":"phosphohedyphane-with-dioptase","title":"PHOSPHOHEDYPHANE   with DIOPTASE","description":"Phosphohedyphane is a very rare calcium lead chlorophosphate mineral, forming a solid-solution series with Pyromorphite which is much commoner. This colourful small cabinet specimen from the Mindouli District, Pool Department, Republic of the Congo is dominated by well-formed gemmy emerald-green Dioptase crystals partially lining an open cavity in porous gossanous matrix. It is within this cavity that two 1 cm wide, blocky Phosphohedyphane crystals sit, joined together. These are pale cream-green coloured and have a matt surface texture\/lustre. Their shape is unusual - almost orthorhombic - and suggests that perhaps they are pseudomorphous after another lead mineral, perhaps Anglesite. The host rock and cavity are also coated and veined with a pale sky blue powdery mineral which is not identified, but is possibly Shattuckite. It is from the superb systematic collection assembled by the brothers Martin and Michael Günther (1951-2007 \u0026amp; 1956-2021).","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781188755791,"sku":"CC27371","price":1480.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC27371_6c04a211-22db-490f-adf6-7d3959cfe5f3.jpg?v=1783980850","url":"https:\/\/crystalclassics.co.uk\/products\/phosphohedyphane-with-dioptase","provider":"Crystal Classics UK","version":"1.0","type":"link"}