{"product_id":"calcite-217","title":"CALCITE","description":"A quite extraordinary large cabinet specimen of two generations of twinned Calcite from the Santa Eulalia Mining District in Chihuahua, Mexico.  This mining district is known for such specimens yet I personally have never handled one before now.  The morphology is unusual to say the least, with what appears to be the later generation Calcite forming opaque to semi-translucent, dark chocolate brown narrow crystals.  These form twinned crystals with colourless to smoky tinted Calcite, the latter forming about 70% of each twin’s volume.  Crystals average 1 to 2 cm while a single, 6 cm tall twinned scalenohedral dominates, positioned at the centre of the display face.\n","brand":"Crystal Classics","offers":[{"title":"Default Title","offer_id":57781237842255,"sku":"CC32101","price":333.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/3748\/2063\/files\/CC32101_70b1d187-8782-494a-bf9d-25a2f101d814.jpg?v=1783983805","url":"https:\/\/crystalclassics.co.uk\/products\/calcite-217","provider":"Crystal Classics UK","version":"1.0","type":"link"}