{"product_id":"chrysocolla-and-native-copper-in-volcanic-matrix-garut-indonesia-copy-1","title":"Native Copper and Chrysocolla-Bearing Silica in Volcanic Matrix — Garut, Indonesia","description":"\u003cp\u003e\u003cspan\u003eA concentrated copper-bearing center stands out against vivid blue and teal mineralization in this Garut specimen. Native copper metallic patches and fine branching forms mingle with lavender-gray and black material, creating an intricate pattern within the gray-green volcanic host.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe dark central region is an important part of the specimen’s mineral assemblage. Copper exposures interspersed with gray metallic-looking borders and darker, finely textured material. This region may include additional copper minerals, alteration products, and dark siliceous material.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe surrounding blue-green material is consistent with chrysocolla-bearing silica, potentially including chalcedony and common opal. Native copper is indicated by the characteristic copper-metallic exposures. The lavender-gray and black accessory constituents have not been laboratory identified.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe polished face contrasts with a rough reverse containing green-blue mineralization and open cavities. The volcanic host is interpreted as altered tuff.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHeld in Old Earth Minerals’ inventory for approximately five years, this specimen is now being offered for sale.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLocality: Garut, West Java, Indonesia\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eWeight: 56 g\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eDimensions: Approximately 65 × 50 × 12 mm\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eFinish: Polished face with rough reverse\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eSpecimen No.: 16125\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe exact specimen shown is offered.\u003c\/span\u003e\u003c\/p\u003e","brand":"OLD EARTH MINERALS","offers":[{"title":"Default Title","offer_id":41021904814209,"sku":"1612540","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/9433\/1777\/files\/IMG_4669.heic?v=1793549191","url":"https:\/\/oldearthminerals.com\/products\/chrysocolla-and-native-copper-in-volcanic-matrix-garut-indonesia-copy-1","provider":"OLD EARTH MINERALS","version":"1.0","type":"link"}