{"product_id":"cassiterite-145","title":"CASSITERITE","description":"It is not very often that we see such a rich, dense, tin ore specimen from the famous Carn Brea mine between Camborne and Redruth implying that it came from the vein underground rather than from the mine dumps. Crystallized, but not showing any perfectly terminated crystals, this old specimen bears an immaculate Col. Sir William Serjeant (1857-1930) handwritten label with its distinctive blue-rim and octagonal shape and with no fading. Started in 1832, as a merger of several smaller 18th century mines, Carn Brea initially produced copper ores, but as with many Cornish mines progressed to tin ore at depth, eventually closing in 1914. Ex Bruce Grant Collection (no. 1901) and ex Peter Golley Collection (with original label). Serjeant sold his collection to Plymouth Museum in the 1920s but many of his specimens were exchanged out of the museum during the 1970s and are now highly collectible.","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":46793869787311,"sku":"CC56094","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/8516\/2671\/files\/CC56094.png?v=1780563918","url":"https:\/\/crystalclassics.com\/products\/cassiterite-145","provider":"Crystal Classics","version":"1.0","type":"link"}