{"product_id":"uv-reactive-alien-agate-geode-hinged-display-specimen","title":"UV Reactive “Alien Agate” Geode | Hinged Display Specimen","description":"\u003ch2 data-start=\"209\" data-end=\"230\"\u003eAbout the Specimen\u003c\/h2\u003e\n\u003cp data-start=\"232\" data-end=\"551\"\u003eThis striking \u003cstrong data-start=\"246\" data-end=\"273\"\u003eUV-reactive agate geode\u003c\/strong\u003e is presented as a naturally split, two-piece specimen, allowing both halves to be displayed open or closed. Supplied under the trade name \u003cem data-start=\"412\" data-end=\"427\"\u003e“Alien Agate”\u003c\/em\u003e, this name reflects the specimen’s unusual internal structure and fluorescence rather than a formal mineral classification.\u003c\/p\u003e\n\u003cp data-start=\"553\" data-end=\"810\"\u003eThe interior reveals a combination of soft blue-grey chalcedony and secondary quartz crystal growth surrounding a darker mineral-rich core. The contrast between textures, colours, and UV response makes this a visually engaging and highly characterful piece.\u003c\/p\u003e\n\u003cul data-start=\"812\" data-end=\"1006\"\u003e\n\u003cli data-start=\"812\" data-end=\"839\"\u003e\n\u003cp data-start=\"814\" data-end=\"839\"\u003e\u003cstrong data-start=\"814\" data-end=\"831\"\u003eTotal weight:\u003c\/strong\u003e 126 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"840\" data-end=\"896\"\u003e\n\u003cp data-start=\"842\" data-end=\"896\"\u003e\u003cstrong data-start=\"842\" data-end=\"853\"\u003eFormat:\u003c\/strong\u003e Naturally split agate geode (two pieces)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"897\" data-end=\"946\"\u003e\n\u003cp data-start=\"899\" data-end=\"946\"\u003e\u003cstrong data-start=\"899\" data-end=\"913\"\u003eCondition:\u003c\/strong\u003e Natural, unpolished, untreated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"947\" data-end=\"1006\"\u003e\n\u003cp data-start=\"949\" data-end=\"1006\"\u003e\u003cstrong data-start=\"949\" data-end=\"962\"\u003eLocality:\u003c\/strong\u003e Unknown (supplier unable to confirm origin)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1008\" data-end=\"1011\"\u003e\n\u003ch2 data-start=\"1013\" data-end=\"1042\"\u003eMeasurements (Approximate)\u003c\/h2\u003e\n\u003cp data-start=\"1044\" data-end=\"1063\"\u003e\u003cstrong data-start=\"1044\" data-end=\"1061\"\u003eClosed geode:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1064\" data-end=\"1096\"\u003e\n\u003cli data-start=\"1064\" data-end=\"1096\"\u003e\n\u003cp data-start=\"1066\" data-end=\"1096\"\u003e8.5 cm × 6.5 cm × 5 cm (depth)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1098\" data-end=\"1123\"\u003e\u003cstrong data-start=\"1098\" data-end=\"1121\"\u003eTop section (open):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1124\" data-end=\"1152\"\u003e\n\u003cli data-start=\"1124\" data-end=\"1152\"\u003e\n\u003cp data-start=\"1126\" data-end=\"1152\"\u003e5 cm × 4 cm × 3 cm (depth)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1154\" data-end=\"1182\"\u003e\u003cstrong data-start=\"1154\" data-end=\"1180\"\u003eBottom section (open):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1183\" data-end=\"1223\"\u003e\n\u003cli data-start=\"1183\" data-end=\"1223\"\u003e\n\u003cp data-start=\"1185\" data-end=\"1223\"\u003e6 cm wide × 5.5 cm tall × 5 cm (depth)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1225\" data-end=\"1305\"\u003eMeasurements are approximate due to the natural, irregular form of the specimen.\u003c\/p\u003e\n\u003chr data-start=\"1307\" data-end=\"1310\"\u003e\n\u003ch2 data-start=\"1312\" data-end=\"1328\"\u003eUV Reactivity\u003c\/h2\u003e\n\u003cp data-start=\"1330\" data-end=\"1451\"\u003eThis specimen displays a \u003cstrong data-start=\"1355\" data-end=\"1392\"\u003estrong and attractive UV reaction\u003c\/strong\u003e, best observed under \u003cstrong data-start=\"1414\" data-end=\"1450\"\u003e365nm longwave ultraviolet light\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1453\" data-end=\"1489\"\u003eObserved UV characteristics include:\u003c\/p\u003e\n\u003cul data-start=\"1490\" data-end=\"1695\"\u003e\n\u003cli data-start=\"1490\" data-end=\"1565\"\u003e\n\u003cp data-start=\"1492\" data-end=\"1565\"\u003eBright \u003cstrong data-start=\"1499\" data-end=\"1521\"\u003egreen fluorescence\u003c\/strong\u003e concentrated within chalcedony-rich zones\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1566\" data-end=\"1620\"\u003e\n\u003cp data-start=\"1568\" data-end=\"1620\"\u003eSofter blue-green glow along internal cavity walls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1621\" data-end=\"1695\"\u003e\n\u003cp data-start=\"1623\" data-end=\"1695\"\u003eClear contrast between fluorescent interiors and the darker outer rind\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1697\" data-end=\"1764\"\u003eNo phosphorescence has been observed once the UV source is removed.\u003c\/p\u003e\n\u003cp data-start=\"1766\" data-end=\"1861\"\u003eAll UV photographs are taken under controlled conditions and accurately represent the specimen.\u003c\/p\u003e\n\u003chr data-start=\"1863\" data-end=\"1866\"\u003e\n\u003ch2 data-start=\"1868\" data-end=\"1891\"\u003eGeological Formation\u003c\/h2\u003e\n\u003cp data-start=\"1893\" data-end=\"2192\"\u003eAgate is a form of \u003cstrong data-start=\"1912\" data-end=\"1952\"\u003emicrocrystalline quartz (chalcedony)\u003c\/strong\u003e that forms when silica-rich fluids slowly infill cavities within host rock. Over extended geological time, successive silica deposition creates layered chalcedony, often followed by later-stage quartz crystal growth within remaining voids.\u003c\/p\u003e\n\u003cp data-start=\"2194\" data-end=\"2276\"\u003eIn this specimen, uneven silica infill and later mineral deposition have produced:\u003c\/p\u003e\n\u003cul data-start=\"2277\" data-end=\"2428\"\u003e\n\u003cli data-start=\"2277\" data-end=\"2308\"\u003e\n\u003cp data-start=\"2279\" data-end=\"2308\"\u003eIrregular internal cavities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2309\" data-end=\"2349\"\u003e\n\u003cp data-start=\"2311\" data-end=\"2349\"\u003eMixed chalcedony and quartz textures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2350\" data-end=\"2428\"\u003e\n\u003cp data-start=\"2352\" data-end=\"2428\"\u003eLocalised concentrations of trace elements responsible for UV fluorescence\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2430\" data-end=\"2538\"\u003eThe unusual internal appearance is the result of \u003cstrong data-start=\"2479\" data-end=\"2507\"\u003enatural growth variation\u003c\/strong\u003e, not treatment or enhancement.\u003c\/p\u003e\n\u003chr data-start=\"2540\" data-end=\"2543\"\u003e\n\u003ch2 data-start=\"2545\" data-end=\"2574\"\u003eApproximate Geological Age\u003c\/h2\u003e\n\u003cp data-start=\"2576\" data-end=\"2700\"\u003eWhile the exact locality is unknown, agates of this type typically form during periods of volcanic or hydrothermal activity.\u003c\/p\u003e\n\u003cp data-start=\"2702\" data-end=\"2756\"\u003eA reasonable geological estimate for this specimen is:\u003c\/p\u003e\n\u003cul data-start=\"2757\" data-end=\"2801\"\u003e\n\u003cli data-start=\"2757\" data-end=\"2801\"\u003e\n\u003cp data-start=\"2759\" data-end=\"2801\"\u003e\u003cstrong data-start=\"2759\" data-end=\"2801\"\u003eApproximately 50–200 million years old\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2803\" data-end=\"2806\"\u003e\n\u003ch2 data-start=\"2808\" data-end=\"2834\"\u003eRarity \u0026amp; Collectability\u003c\/h2\u003e\n\u003cp data-start=\"2836\" data-end=\"3021\"\u003eWhile agate itself is widespread, \u003cstrong data-start=\"2870\" data-end=\"2937\"\u003eUV-reactive agate geodes with strong, concentrated fluorescence\u003c\/strong\u003e are significantly less common — particularly in naturally split, displayable pairs.\u003c\/p\u003e\n\u003cp data-start=\"3023\" data-end=\"3055\"\u003eCollectability features include:\u003c\/p\u003e\n\u003cul data-start=\"3056\" data-end=\"3203\"\u003e\n\u003cli data-start=\"3056\" data-end=\"3094\"\u003e\n\u003cp data-start=\"3058\" data-end=\"3094\"\u003eDistinct internal cavity structure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3095\" data-end=\"3125\"\u003e\n\u003cp data-start=\"3097\" data-end=\"3125\"\u003eMultiple fluorescent zones\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3126\" data-end=\"3158\"\u003e\n\u003cp data-start=\"3128\" data-end=\"3158\"\u003eNatural two-piece separation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3159\" data-end=\"3203\"\u003e\n\u003cp data-start=\"3161\" data-end=\"3203\"\u003eUnique character due to unknown locality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3205\" data-end=\"3260\"\u003eEach specimen of this type is inherently one of a kind.\u003c\/p\u003e\n\u003chr data-start=\"3262\" data-end=\"3265\"\u003e\n\u003ch2 data-start=\"3267\" data-end=\"3293\"\u003eDisplay \u0026amp; Mounting Note\u003c\/h2\u003e\n\u003cp data-start=\"3295\" data-end=\"3678\"\u003eThis specimen has been \u003cstrong data-start=\"3318\" data-end=\"3369\"\u003eprofessionally mounted with a small metal hinge\u003c\/strong\u003e, which has been \u003cstrong data-start=\"3386\" data-end=\"3406\"\u003esecurely adhered\u003c\/strong\u003e to allow the two natural halves to open and close smoothly.\u003cbr data-start=\"3466\" data-end=\"3469\"\u003eThe hinge is \u003cstrong data-start=\"3482\" data-end=\"3522\"\u003enot part of the geological formation\u003c\/strong\u003e and has been added \u003cstrong data-start=\"3542\" data-end=\"3581\"\u003epurely for display and presentation\u003c\/strong\u003e, ensuring the two matching halves remain together and can be safely displayed as a single piece.\u003c\/p\u003e\n\u003cp data-start=\"3680\" data-end=\"3822\"\u003eThe mounting is clearly visible in the photographs and does not affect the natural surfaces, crystal growth, or UV reactivity of the specimen.\u003c\/p\u003e\n\u003chr data-start=\"3824\" data-end=\"3827\"\u003e\n\u003ch2 data-start=\"3829\" data-end=\"3847\"\u003eCare \u0026amp; Handling\u003c\/h2\u003e\n\u003cul data-start=\"3849\" data-end=\"4085\"\u003e\n\u003cli data-start=\"3849\" data-end=\"3909\"\u003e\n\u003cp data-start=\"3851\" data-end=\"3909\"\u003eHandle with care — natural crystal edges may be delicate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3910\" data-end=\"3950\"\u003e\n\u003cp data-start=\"3912\" data-end=\"3950\"\u003eAvoid prolonged exposure to moisture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3951\" data-end=\"3995\"\u003e\n\u003cp data-start=\"3953\" data-end=\"3995\"\u003eClean gently with a soft, dry brush only\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3996\" data-end=\"4085\"\u003e\n\u003cp data-start=\"3998\" data-end=\"4085\"\u003eUV display is safe, but prolonged intense exposure should be avoided for conservation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starshine Minerals","offers":[{"title":"Default Title","offer_id":56684507529560,"sku":null,"price":62.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/4304\/7000\/files\/IMG_6620.jpg?v=1770581580","url":"https:\/\/starshineminerals.co.uk\/products\/uv-reactive-alien-agate-geode-hinged-display-specimen","provider":"Starshine Minerals","version":"1.0","type":"link"}