{"product_id":"natural-prehnite-rough-lapidary-collectible-or-decorative-7-3x5-0-cm-aka-grape-stone","title":"Natural Prehnite - Rough - lapidary, collectible or decorative - 7.3x5.0 cm - AKA Grape stone","description":"\u003cp\u003eNatural Prehnite - Rough - lapidary, collectible or decorative - 7.3x5.0 cm - AKA Grape stone\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCertificate : RO-PREH026GR-003-246\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eGem Type: Prehnite\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eShape: Rough\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eSize: 73.8 x 55.0 x 36.3 mm.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eColor: clear green\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eClarity: Semi-Translucent\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eLuster: N\/A\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eTreatment: Unheated Untreated\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"Os4qE\"\u003e\u003cspan\u003eBirefringence : 0.021-0.033\u003cbr\u003eCrystallography : Orthorhombic\u003cbr\u003eDispersion : weak\u003cbr\u003eLuster : Vitreous\u003cbr\u003eHardness : 6-6.5\u003cbr\u003eRefractive index : 1.611-1.665\u003cbr\u003eSpecific gravity : 2.80-3.00\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOMMENTS :\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo indications of heating, no indications of any other treatment\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/naturalgemsbelgium.shop\/blogs\/info-certificates-natural-gems-belgium\/ro-preh026gr-003-246\" target=\"_blank\" title=\"online certificate of natural rough prehnite\" rel=\"noopener\"\u003e\u003cstrong\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFIND THE ONLINE CERTIFICATE HERE\u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Natural Gems Belgium","offers":[{"title":"Default Title","offer_id":56517586813252,"sku":"RO-PREH026GR-003-246","price":15.25,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/1827\/3860\/files\/20260314_181420.jpg?v=1773509146","url":"https:\/\/naturalgemsbelgium.shop\/products\/natural-prehnite-rough-lapidary-collectible-or-decorative-7-3x5-0-cm-aka-grape-stone","provider":"Natural Gems Belgium","version":"1.0","type":"link"}