{"product_id":"clinozoisite-in-quartz-alamos-alamos-municipality-sonora-mexico-copy","title":"Allanite (Allanite Group)- Mojave County, Arizona, USA","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAllanite (Allanite Group)\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eMojave County, Arizona, USA\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.8 × 3.2 × 2.0 cm\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProvenance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Original vintage collection label, catalog no. 225, included with specimen.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA dark, massive Allanite specimen displaying deep brownish-black to nearly jet-black coloration with subtle reddish-brown undertones. Several fractured surfaces exhibit a striking resinous to vitreous luster, reflecting light across irregular, angular planes. Fine surface textures, intersecting fractures, and scattered rusty-brown areas add visual depth, while the contrast between glossy interior surfaces and more weathered exterior areas highlights the mineral's distinctive appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAllanite is a rare-earth-element-bearing silicate mineral belonging to the epidote group. It commonly occurs in igneous and metamorphic rocks and is of particular interest to collectors because of its ability to incorporate rare-earth elements such as cerium, lanthanum, and neodymium into its crystal structure. Allanite is also known for its tendency to undergo metamictization, a process in which naturally occurring radiation gradually disrupts its crystal structure. This vintage-labeled specimen is an interesting example of a rare-earth-bearing mineral from the American Southwest.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Crystalary","offers":[{"title":"Default Title","offer_id":67782373965955,"sku":"barrydwr9-2of2-225","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0390\/4634\/8931\/files\/IMG_3195.jpg?v=1791934993","url":"https:\/\/www.thecrystalary.com\/products\/clinozoisite-in-quartz-alamos-alamos-municipality-sonora-mexico-copy","provider":"The Crystalary","version":"1.0","type":"link"}