{"product_id":"pollucite-gemstone-1-72-carats-square-step-cut-7-00-6-85-mm-collector-s-vault","title":"Pollucite Gemstone, 1.72 Carat, Square Step Cut Tectosilicate | Collector’s Vault","description":"\u003ch2 data-end=\"227\" data-start=\"193\"\u003ePollucite — Collector’s Vault\u003c\/h2\u003e\n\u003cp data-end=\"671\" data-start=\"228\"\u003e\u003cstrong data-end=\"240\" data-start=\"228\"\u003eSpecies:\u003c\/strong\u003e Pollucite (cesium-bearing feldspathoid-like pegmatite mineral; cesium aluminosilicate hydrate)\u003cbr data-end=\"338\" data-start=\"335\"\u003e\u003cstrong data-end=\"349\" data-start=\"338\"\u003eWeight:\u003c\/strong\u003e 1.72 carats\u003cbr data-end=\"364\" data-start=\"361\"\u003e\u003cstrong data-end=\"381\" data-start=\"364\"\u003eMeasurements:\u003c\/strong\u003e 7.00 × 6.85 × 4.65 mm\u003cbr data-end=\"406\" data-start=\"403\"\u003e\u003cstrong data-end=\"414\" data-start=\"406\"\u003eCut:\u003c\/strong\u003e Square step cut\u003cbr data-end=\"433\" data-start=\"430\"\u003e\u003cstrong data-end=\"443\" data-start=\"433\"\u003eColor:\u003c\/strong\u003e Colorless to near colorless (photos show a cool, near-colorless body)\u003cbr data-end=\"511\" data-start=\"508\"\u003e\u003cstrong data-end=\"523\" data-start=\"511\"\u003eClarity:\u003c\/strong\u003e SI, Included (visible internal features in photos; typical for rarity minerals)\u003cbr data-end=\"602\" data-start=\"599\"\u003e\u003cstrong data-end=\"616\" data-start=\"602\"\u003eTreatment:\u003c\/strong\u003e None\u003cbr data-end=\"630\" data-start=\"627\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"699\" data-start=\"673\"\u003eCondition and Optics\u003c\/h3\u003e\n\u003cp data-end=\"1038\" data-start=\"700\"\u003eThis is a square step cut with broad facets that emphasize transparency and structure more than sparkle. The photos show visible internal inclusions and veil-like features that will read more clearly in step cuts than in brilliant styles. Face-up appearance is cleanly geometric with a calm, glassy look rather than high-fire performance.\u003c\/p\u003e\n\u003ch3 data-end=\"1064\" data-start=\"1040\"\u003eGeological Context\u003c\/h3\u003e\n\u003cp data-end=\"1477\" data-start=\"1065\"\u003ePollucite is a cesium-rich mineral that forms in granitic pegmatites, where crystals grow in chemically specialized pockets. Facetable material is uncommon because pollucite is primarily encountered as mineral specimens or as industrial cesium ore rather than as gem rough. When it is cut, it is typically acquired by collectors who intentionally seek out rare species rather than mainstream “big market” stones.\u003c\/p\u003e\n\u003ch3 data-end=\"1491\" data-start=\"1479\"\u003eRarity\u003cstrong data-end=\"316\" data-start=\"306\"\u003e\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-end=\"758\" data-start=\"319\"\u003ePollucite is an uncommon cesium-bearing mineral that is seldom encountered in faceted form. While it is mineralogically significant as the primary ore of cesium, the overwhelming majority of pollucite occurs as opaque, fractured, or industrial-grade material unsuitable for cutting. Transparent crystals of sufficient size and stability to facet are rare, and a high proportion fail during cutting due to inherent brittleness and cleavage.\u003c\/p\u003e\n\u003cp data-end=\"1199\" data-start=\"760\"\u003eAs a result, faceted pollucite occupies a narrow and specialized collector market. Availability is irregular and dependent on sporadic recovery from chemically extreme granitic pegmatites rather than ongoing commercial production. Stones of this size with usable transparency and coherent geometry are not routinely replaceable and typically circulate through collector and specialty mineral channels rather than mainstream gemstone trade.\u003c\/p\u003e\n\u003ch3 data-end=\"1849\" data-start=\"1824\"\u003eWear Considerations\u003c\/h3\u003e\n\u003cp data-end=\"2146\" data-start=\"1850\"\u003ePollucite is approximately \u003cstrong data-end=\"1889\" data-start=\"1877\"\u003eMohs 6.5\u003c\/strong\u003e and is not positioned as a daily-wear ring stone for most buyers. If set, it performs best in protected designs (bezel or well-sheltered prongs) and in wear categories with lower impact risk (pendant, occasional-wear ring). This is a collector stone first.\u003c\/p\u003e\n\u003ch3 data-end=\"2159\" data-start=\"2148\"\u003ePrice\u003c\/h3\u003e\n\u003cp data-end=\"2449\" data-start=\"2373\"\u003e\u003cstrong\u003e$235.00 USD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2449\" data-start=\"2373\"\u003e\u003cspan\u003ePollucite is not priced from a standardized retail guide. Faceted material is traded infrequently and valued within a narrow collector market based on size, cut quality, and availability rather than brilliance or durability. This price reflects a 1.72-carat square step cut selected as the strongest example among this group of pollucites, offered natural and untreated. It is set for a collector buyer and reflects the scarcity of facetable pollucite rather than mainstream jewelry demand.\u003c\/span\u003e\u003c\/p\u003e","brand":"Velcryn Gems","offers":[{"title":"Default Title","offer_id":48050950570216,"sku":"26-SQP-1-1","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/5460\/8616\/files\/PolluciteSquare1.72Cts.jpg?v=1770679346","url":"https:\/\/velcryngems.com\/es\/products\/pollucite-gemstone-1-72-carats-square-step-cut-7-00-6-85-mm-collector-s-vault","provider":"Velcryn Gems","version":"1.0","type":"link"}