{"product_id":"pearceite-t2ac-with-proustite","title":"PEARCEITE-T2ac with PROUSTITE","description":"The Pearcite-Polybasite Group of silver copper sulphosalts of arsenic and antimony is a complex one, and has been made all the more technical with recent revisions. What was formerly called Arsenpolybasite was split into two polytypes: Arsenpolybasite-221 and Arsenpolybasite-222. These have subsequently been renamed respectively as Pearceite-T2ac and Pearceite-M2a2b2c. The 'Arsenopolybasite' crystals from Uchucchacua mine in Peru are now defined as Pearceite-T2ac. This large miniature specimen is a colossus of Pearceite-T2ac, as an aggregate of enormous (5.9 cm wide) thin pseudohexagonal dark grey crystals alligned parallel to form a much larger hexagonal mass. Embedded within this is a dark red crystal of Proustite. The enormity of this Pearceite-T2ac crystal\/crystal aggregate is staggering. The outline of the crystal is remarkably good, considering its huge size, and you would have to visit many major museums to fine a specimen equal in importance to this. Ex Professor Werner Paar collection - from his remarkable rare species suite.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46545159127215,"sku":"CC19113","price":8500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC19113.png?v=1770374634","url":"https:\/\/crystalclassics.com\/products\/pearceite-t2ac-with-proustite","provider":"Crystal Classics","version":"1.0","type":"link"}