{"product_id":"pearceite","title":"PEARCEITE","description":"Pearceite is one of the four so-called \"ruby silvers\", Pearceite, Pyrargyrite, Proustite and Miargyrite, discovered in 1896 and named for Dr Richard Pearce (1837–1927), a Cornish–American chemist and metallurgist from Denver, Colorado.  Going by my experience here at Crystal Classics and considering the number of each of these species which have passed through my hands, I would certainly say Pearceite is the rarer of the four.   Chemically it is the most complex of the four Cu(Ag,Cu)6Ag9As2S and in this specimens forms well developed, metallic silver-black crystals with snow white Calcite on a metallic bronze speckled matrix.  This is an excellent miniature of this rare silver sulphosalt.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46545393877167,"sku":"CC27703","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC27703.png?v=1770388817","url":"https:\/\/crystalclassics.com\/products\/pearceite","provider":"Crystal Classics","version":"1.0","type":"link"}