{"title":"Hopper Quartz","description":"\u003cp\u003e\u003cstrong\u003eHopper quartz\u003c\/strong\u003e is a rare skeletal growth form of \u003cstrong\u003equartz (SiO2)\u003c\/strong\u003e in which the edges and corners of the crystal race ahead of the faces, leaving stepped, hollow, terrace-like depressions instead of flat, solid faces. This happens because during very rapid, high-supersaturation growth, atoms attach far faster at the high-energy edges than at the centers of the faces, producing the staircase or \"hopper\" morphology also seen in halite and galena. Collectors also know this habit as skeletal, window, or \u003cstrong\u003efenster quartz\u003c\/strong\u003e, and pieces range from fully open frames to partially closed, near-solid crystals with only a faint hint of hoppering.\u003c\/p\u003e\u003cp\u003eThe classic hunting ground for this habit is the \u003cstrong\u003eHerkimer\u003c\/strong\u003e mining district of New York, where hoppered \u003cstrong\u003eHerkimer diamonds\u003c\/strong\u003e are prized alongside elestial and negative-scepter forms. In Europe, the \u003cstrong\u003ePorretta Terme\u003c\/strong\u003e quartz occurrences near Bologna, Italy, have produced legendary double-terminated hopper crystals with vivid yellow clay inclusions, while skeletal quartz is also documented from \u003cstrong\u003eBanská Štiavnica\u003c\/strong\u003e in Slovakia and from alpine-type veins across the Alps. Fine hoppered quartz has additionally been reported from \u003cstrong\u003ePakistan\u003c\/strong\u003e and \u003cstrong\u003eAfghanistan\u003c\/strong\u003e, often associated with smoky or milky quartz generations.\u003c\/p\u003e\u003cp\u003eBecause true hopper growth in quartz is genuinely uncommon compared with window\/fenster forms, well-defined specimens are highly sought by systematic collectors and growth-form specialists. Each crystal is essentially a frozen record of an unusually fast, unstable growth episode, making hopper quartz a favorite for study pieces, thumbnails, and cabinet specimens alike.\u003c\/p\u003e","products":[{"product_id":"lz-herkimer-quartz-0","title":"QUARTZ DIAMOND HOPPER – Natural Italian Quartz with Golden Inclusion","description":"\u003cp\u003eNatural hopper Quartz (Quartz Diamond) crystals from Italy with golden inclusions and exceptional transparency. These specimens show hopper growth, inclusions of clay and earthy material, and in some cases sceptre formations, highly valued for their aesthetic and collector interest.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-start=\"494\" data-end=\"511\"\u003eMineral Data:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"512\" data-end=\"527\"\u003eDimensions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLarge 5-3,5 cm\u003c\/li\u003e\n\u003cli\u003eMedium 3,5-2 cm\u003c\/li\u003e\n\u003cli\u003eSmall up to 2 cm \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-start=\"576\" data-end=\"591\"\u003eProvenance:\u003c\/strong\u003e Val Nervia (Liguria), Selvino (Lombardy), Porretta Terme (Emilia-Romagna), Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ITALMINERAL","offers":[{"title":"Small","offer_id":44328263975021,"sku":null,"price":5.0,"currency_code":"EUR","in_stock":true},{"title":"Medium","offer_id":44328264007789,"sku":null,"price":8.0,"currency_code":"EUR","in_stock":true},{"title":"Large","offer_id":44328264040557,"sku":null,"price":13.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8027\/6333\/files\/imgi_14_AGC_20240917_211112579_6245ce1f-292b-4ab1-8c45-226d406d554e.jpg?v=1772660210"},{"product_id":"fa15-quarzo-tramoggia-italia-7","title":"HOPPER QUARTZ – Large Transparent Crystal with Clay Inclusions, Liguria, Italy","description":"\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNatural \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"35\"\u003eHopper Quartz (\"Quarzo \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"58\"\u003eTramoggia\") from Val Nervia, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"87\"\u003eLiguria, Italy — a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"106\"\u003escientifically documented locality \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"141\"\u003efamous for its \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"156\"\u003edistinctive skeletal crystal \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"185\"\u003egrowth. Large, highly \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"207\"\u003etransparent crystal with natural \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"240\"\u003ereddish clay inclusions \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"264\"\u003ecreating striking internal \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"291\"\u003elight effects, a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"308\"\u003egenuinely uncommon and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"331\"\u003epublished Italian mineral \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"357\"\u003ephenomenon.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eMineral Data:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"15\"\u003eDimensions:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"15\"\u003e 58 × \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"41\"\u003e42 × 28 mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"56\"\u003eWeight:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"56\"\u003e 53 g\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"75\"\u003eProvenance:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"75\"\u003e Isolabona, Nervia \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003eValley, Imperia Province, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"133\"\u003eLiguria, Italy\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"ITALMINERAL","offers":[{"title":"Default Title","offer_id":45445980717165,"sku":null,"price":125.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8027\/6333\/files\/IMG20260301163623.jpg?v=1783692750"}],"url":"https:\/\/www.italmineral.com\/collections\/hopper-quartz.oembed","provider":"ITALMINERAL","version":"1.0","type":"link"}