{"product_id":"herkimer-diamond-quartz-crystal-ace-of-diamonds-mine-herkimer-county-new-york","title":"Herkimer Diamond Quartz Crystal – Ace of Diamonds Mine, Herkimer County, New York","description":"\u003cp\u003eA natural Herkimer Diamond quartz crystal from the famous Ace of Diamonds Mine in Herkimer County, New York. Renowned worldwide among collectors, Herkimer Diamonds are prized for their remarkable clarity, natural brilliance, and distinctive double-terminated crystal form. Despite their name, Herkimer Diamonds are not true diamonds but exceptionally well-formed quartz crystals that occur in the dolostone formations of central New York.\u003c\/p\u003e\u003cp\u003eThis specimen was recovered from the historic Ace of Diamonds Mine, one of the most recognized collecting localities in the Herkimer district. The mine has attracted rockhounds, mineral collectors, and gemstone enthusiasts for generations seeking these unique naturally faceted quartz crystals.\u003c\/p\u003e\u003ch2\u003eSpecimen Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eNatural Herkimer Diamond Quartz\u003c\/li\u003e\n\u003cli\u003eAce of Diamonds Mine locality\u003c\/li\u003e\n\u003cli\u003eHerkimer County, New York, USA\u003c\/li\u003e\n\u003cli\u003eNaturally double-terminated crystal\u003c\/li\u003e\n\u003cli\u003eCollector-quality specimen\u003c\/li\u003e\n\u003cli\u003eClassic American mineral locality\u003c\/li\u003e\n\u003cli\u003eHighly desirable quartz variety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eMineral Information\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral:\u003c\/strong\u003e Quartz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormula:\u003c\/strong\u003e SiO₂\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal System:\u003c\/strong\u003e Hexagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness:\u003c\/strong\u003e 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLuster:\u003c\/strong\u003e Vitreous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransparency:\u003c\/strong\u003e Transparent to translucent\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat Makes Herkimer Diamonds Special?\u003c\/h2\u003e\u003cp\u003eHerkimer Diamonds are famous for their naturally occurring double terminations, meaning the crystal formed with points on both ends rather than being attached to surrounding rock during growth. This unusual growth habit is one of the characteristics that makes these crystals highly sought after by collectors.\u003c\/p\u003e\u003ch2\u003eCollectors Value Herkimer Diamonds For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExceptional natural clarity\u003c\/li\u003e\n\u003cli\u003eDouble-terminated crystal habit\u003c\/li\u003e\n\u003cli\u003eBrilliant natural luster\u003c\/li\u003e\n\u003cli\u003eHistoric New York provenance\u003c\/li\u003e\n\u003cli\u003eJewelry and display potential\u003c\/li\u003e\n\u003cli\u003eStrong collector demand\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eNatural Features May Include\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWater inclusions\u003c\/li\u003e\n\u003cli\u003eCarbon inclusions\u003c\/li\u003e\n\u003cli\u003eRainbow reflections\u003c\/li\u003e\n\u003cli\u003eInternal growth features\u003c\/li\u003e\n\u003cli\u003eNatural contact points\u003c\/li\u003e\n\u003cli\u003eComplex crystal formations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProvenance\u003c\/h2\u003e\u003cp\u003eAce of Diamonds Mine, Herkimer County, New York, USA\u003c\/p\u003e\u003ch2\u003eMeasurements\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 15 x 11 x 9 mm\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eCollector Notes\u003c\/h2\u003e\u003cp\u003eHerkimer Diamonds have become one of the most recognizable quartz varieties in the world. Only crystals recovered from the Herkimer County region are properly referred to as Herkimer Diamonds, making locality provenance particularly important to collectors.\u003c\/p\u003e\u003cp\u003eFine examples displaying exceptional clarity, sharp terminations, and attractive inclusions remain highly desirable additions to mineral collections focused on American minerals, quartz varieties, classic localities, crystal specimens, and New York mineralogy.\u003c\/p\u003e\u003ch2\u003eCondition\u003c\/h2\u003e\u003cp\u003ePlease review all photographs carefully for crystal quality, clarity, inclusions, contact points, and overall condition, as they are considered part of the description. Natural quartz crystals commonly display growth features and minor imperfections resulting from their natural formation.\u003c\/p\u003e","brand":"Prospector's Vault","offers":[{"title":"Default Title","offer_id":42430054334546,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/8805\/6146\/files\/Herkimer.png?v=1780192495","url":"https:\/\/prospectorsvault.com\/products\/herkimer-diamond-quartz-crystal-ace-of-diamonds-mine-herkimer-county-new-york","provider":"Prospector's Vault","version":"1.0","type":"link"}