{"product_id":"nwa-7831-diogenite-meteorite-specimen-official-hed-achondrite-northwest-africa-meteorite","title":"NWA 7831 Diogenite Meteorite Specimen Official HED Achondrite Northwest Africa Meteorite","description":"\u003cp\u003eAn authentic specimen of the officially classified Northwest Africa 7831 (NWA 7831) meteorite, a rare Diogenite achondrite approved in Meteoritical Bulletin 103 in 2014. Recovered in Western Sahara in 2013, this remarkable meteorite is especially prized for its striking translucent yellow-green orthopyroxene-rich composition and highly crystalline appearance.\u003c\/p\u003e\u003cp\u003eNWA 7831 represents one of the more visually distinctive diogenites known, consisting almost entirely of coarse orthopyroxene crystals with sparse accessory minerals distributed throughout the stone. The meteorite's unusual crystal-rich structure and coloration make it highly sought after among advanced meteorite and mineral collectors alike.\u003c\/p\u003e\u003ch2\u003eOfficial Classification\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eName:\u003c\/strong\u003e Northwest Africa 7831 (NWA 7831)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry:\u003c\/strong\u003e Western Sahara\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Found:\u003c\/strong\u003e 2013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassification:\u003c\/strong\u003e HED Achondrite (Diogenite)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Stage:\u003c\/strong\u003e Low\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeathering Grade:\u003c\/strong\u003e Moderate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Known Weight:\u003c\/strong\u003e Approximately 20 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Publication:\u003c\/strong\u003e Meteoritical Bulletin 103\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePhysical Characteristics\u003c\/h2\u003e\u003cp\u003eOfficial reports describe: yellow-green crystalline structure, translucent orthopyroxene-rich composition, pale orange weathering products along fractures, highly fractured but coarse-grained material, and sparse accessory mineral inclusions.\u003c\/p\u003e\u003ch2\u003eScientific Composition\u003c\/h2\u003e\u003cp\u003eScientific analysis identified: orthopyroxene dominant composition, chromite, troilite, anorthite, silica polymorphs, clinopyroxene, and sparse Ni-free metal grains.\u003c\/p\u003e\u003cp\u003eThe stone was reportedly found buried near Chouichiyat in Western Sahara and excavated by local finders in 2013. Due to extensive fracturing, portions of the material reportedly disintegrated during excavation, making intact high-quality specimens especially desirable.\u003c\/p\u003e\u003cp\u003eUnlike ordinary chondrites, diogenites are achondritic meteorites composed primarily of igneous orthopyroxene-rich material and are highly valued for their crystalline textures and differentiated mineralogy.\u003c\/p\u003e\u003ch2\u003eIdeal For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDiogenite collectors\u003c\/li\u003e\n\u003cli\u003eHED achondrite enthusiasts\u003c\/li\u003e\n\u003cli\u003eAdvanced meteorite collections\u003c\/li\u003e\n\u003cli\u003eMineral-meteorite crossover collectors\u003c\/li\u003e\n\u003cli\u003eMuseum and educational displays\u003c\/li\u003e\n\u003cli\u003eCollectors seeking visually unique achondrites\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDepending on preparation, specimens may display: translucent crystalline orthopyroxene, greenish-yellow coloration, coarse mineral textures, polished pyroxene structure, and chromite inclusions and fracture networks.\u003c\/p\u003e\u003cp\u003eA remarkable extraterrestrial artifact showcasing one of the most visually unusual crystalline structures found within rare achondrite meteorites.\u003c\/p\u003e\u003ch2\u003eMeasurements \u0026amp; Weight\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDimensions: 40 x 35 x 0.2 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 6.2g\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCondition\u003c\/h2\u003e\u003cp\u003ePlease review all photos carefully for overall condition, fractures, weathering, crystal structure, and preparation characteristics, as they are considered part of the description. Meteorites are natural extraterrestrial objects and commonly display fractures, oxidation, weathering products, and natural mineralogical variation.\u003c\/p\u003e","brand":"Prospector's Vault","offers":[{"title":"Default Title","offer_id":42422822895698,"sku":null,"price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/8805\/6146\/files\/NWA7831.png?v=1779754942","url":"https:\/\/prospectorsvault.com\/products\/nwa-7831-diogenite-meteorite-specimen-official-hed-achondrite-northwest-africa-meteorite","provider":"Prospector's Vault","version":"1.0","type":"link"}