Siderite, Quartz
Wheal Maudlin, Lostwithiel, Cornwall, England, UK
Found in a single pocket almost two hundred years ago (about 1820, it is thought), these siderite crystals (variety chalybite) are exceptional for form and rarity. Often referred to as "horsetooth" siderites, the hexagonal form is unusually sharp and in fact unique to this single find, and the zoning is very well defined. They remain, 200 years ...
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