{"product_id":"clear-optical-calcite-1-3-avg-1-kilo-lot","title":"Clear Optical Calcite \/ 1-3\" AVG - 1 KILO LOT","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eQuantity: 1 kilogram\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eAverage size range: 1 to 3 inches\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\" data-mce-style=\"font-weight: 400;\"\u003eOptical calcite, also known as Iceland spar, is a special type of calcite that forms extremely clear and somewhat rectangular crystals. For centuries, sailors would use these crystals to help determine the direction of the sun on cloudy days for navigation.\u003c\/span\u003e\u003c\/p\u003e","brand":"Crystal River Gems","offers":[{"title":"Default Title","offer_id":48643982590208,"sku":"CLOPCAL-1KG","price":27.68,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/0061\/files\/CLOPCAL-1KGphoto01-585465.jpg?v=1777051100","url":"https:\/\/metaldetectingstuff.com\/products\/clear-optical-calcite-1-3-avg-1-kilo-lot","provider":"Metal Detecting Stuff","version":"1.0","type":"link"}