{"product_id":"aragonite-bird-s-nest-with-cave-pearls-styrian-erzberg-austria","title":"Aragonite “Bird’s Nest” with Cave Pearls - Styrian Erzberg, Austria","description":"\u003cp\u003e\u003cspan\u003eAn unusual aragonite formation commonly known as \u003cstrong\u003e“Bird’s Nest” aragonite\u003c\/strong\u003e, featuring numerous rounded \u003cstrong\u003ecave pearls\u003c\/strong\u003e nestled within a broad grey, cream and tan aragonite sinter formation. Of course this is not really a bird's nest but certainly resembles one, hence the name. The mixture of smooth pearl-like forms, rounded pisolitic growths and textured surfaces gives this specimen a fascinating organic appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCave pearls form when mineral-rich water deposits successive layers of calcium carbonate around small nuclei such as grains of sand or rock fragments. Their resemblance to eggs resting within the surrounding aragonite formation gives specimens of this type their descriptive “Bird’s Nest” name. Finding a formation of this size (and keeping it intact during extraction) is certainly impressive.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specimen comes from the historic \u003cstrong\u003eStyrian Erzberg iron mine \u003c\/strong\u003enear\u003cstrong\u003e Eisenerz, Austria\u003c\/strong\u003e, a locality known for secondary calcite and aragonite formations. It was formerly part of the Steve Potvin Collection, and the accompanying collection label is included. A truly fascinating conversation piece.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMineral:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Aragonite\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFormation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cave pearls; Pisolitic aragonite\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eLocality:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Erzberg Mine, Eisenerz, Leoben District, Styria, Austria\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eProvenance:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Ex Steve Potvin Collection\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 17 cm × 13 cm × 3 cm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":52742109954330,"sku":null,"price":250.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/aragonite-birds-nest-erzberg-austria-02.jpg?v=1787695841","url":"https:\/\/keithrocks.ca\/products\/aragonite-bird-s-nest-with-cave-pearls-styrian-erzberg-austria","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}