{"product_id":"168-9g-diogenite-meteorite-i-hed-achondrite-meteorite-from-asteroid-4-vesta-i-nwa-15339","title":"168.9g Diogenite HED Achondrite Meteorite from Asteroid 4 Vesta I NWA 16081","description":"\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOn Offer:\u003c\/strong\u003e 168.9g Diogenite HED achondrite meteorite with some crust.\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOfficial name:\u003c\/strong\u003e Northwest Africa 16081\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eAbbreviation:\u003c\/strong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e NWA 16081\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 72.73 mm x 37.50 mm x 36.63 mm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003eHED achondrite (Diogenite)\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eParent Body:\u003c\/strong\u003e Vesta or Vestoid\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eYear found: \u003c\/strong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e2022\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCountry:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e(Northwest Africa)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e 168.9 gram specimen of an amazing diogenite HED achondrite partially covered in black fusion crust with exposed areas showing a light colored interior with a slight green hue.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cb\u003eThe HED Meteorite Clan: \u003c\/b\u003epetrological evidence and data from NASA's \u003ci\u003eDawn\u003c\/i\u003e mission indicate that nearly monomineralic ultramafic orthopyroxenite, olivine-bearing, and the much more rare harzburgitic, and dunite diogenites formed alongside each other. They likely originated as cumulates within localized magma chambers (plutons) situated across Vesta's lower crust and the lower-crust\/upper-mantle transition zone. While the eucrites represent more evolved plagioclase rich mafic upper to middle zone crustal material. The howardites were formed by impact mixing of the diogenitic and eucritic material both in situ and during ejection events. \u003cbr\u003e\u003cbr\u003eThe HED meteorites are so named for the three types of meteorites that comprise the group; Howardite, Eucrite and \u003cstrong\u003eDiogenite\u003c\/strong\u003e. The Eucrite and Diogenite are meteorites with distinct chemistries, while the Howardite is a mix of the eucritic and diogenitic material. The HEDs are differentiated achondritic meteorites, thought to originate from the large differentiated asteroid 4 Vesta. Vesta is one of the only asteroids visible with the naked eye and low powered telescopes. \u003cbr\u003e\u003cbr\u003eThe Vesta parent body origin for the HED clan of meteorites is considered to have been conclusively established for many years. However, the late Dr. John Wasson, a planetary science researcher from UCLA had long held that the HED meteorite clan originated from another unknown Vesta-like asteroid that was blown apart long ago. This is because we also find a class of iron meteorites with nearly identical oxygen isotopes as the HED clan. This along with other research lead Dr. Wasson to conclude the HED clan of meteorites come from another differentiated V-type asteroid that was in a cataclysmic collision liberating part or all of its metal core along with the HED meteorites.\u003cbr\u003e\u003cbr\u003eHowever, this hypothesis does not necessarily rule out the possibility that a \"reaccreted\" Vesta and the smaller V-type asteroids collectively known as Vestoids along with the HED meteorites and the isotopically paired irons were all once part of a much larger dwarf planet prior to a massive collision with another large body. While most researchers consider the case mostly closed on this debate, the paradox of isotopically paired core metal raised by Dr. Wasson's hypothesis has not been resolved. This leaves some to speculate that perhaps we still have more to learn about this fascinating clan of achondrite meteorites and even Vesta itself. \u003cstrong\u003eDiogenite\u003c\/strong\u003e have distinct mineralogies, the Howardite is a breccia of the Eucrite and \u003cstrong\u003eDiogenite.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eThe HEDs are differentiated achondritic meteorites thought to originate from Vesta, or a smaller Vesta-like asteroid known as a vestoid. \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWhat you get:\u003c\/strong\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e168.9\u003c\/span\u003e\u003cspan\u003e gram\u003c\/span\u003e diogenite meteorite specimen as shown, \u0026amp; signed Certificate of Authenticity.\u003c\/div\u003e\n\u003cdiv\u003eWe offer a 100% no questions asked 30 day return policy.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eSEE OFFICIAL METEORITICAL SOCIETY ENTRY BELOW\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv\u003e\n\u003ctable border=\"1\" id=\"maintable\" cellpadding=\"4\" cellspacing=\"0\" class=\"tablefat\"\u003e\n\u003ccaption\u003e\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr valign=\"top\"\u003e\n\u003cth class=\"insidehead\" colspan=\"2\"\u003e\u003cspan\u003e\u003cb\u003eNorthwest Africa 16081\u003c\/b\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd class=\"inside\"\u003e\u003cbig\u003eBasic information\u003c\/big\u003e\u003c\/td\u003e\n\u003ctd class=\"inside\"\u003e\n\u003cspan\u003e\u003cb\u003eName:\u003c\/b\u003e Northwest Africa 16081\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     This is an OFFICIAL meteorite name.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cb\u003eAbbreviation:\u003c\/b\u003e NWA 16081\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eObserved fall:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eNo\u003cbr\u003e\u003cb\u003eYear found:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e2023\u003cbr\u003e\u003cb\u003eCountry:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eNiger\u003cbr\u003e\u003cb\u003e\u003cspan\u003eMass: \u003c\/span\u003e\u003c\/b\u003e419 g\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd class=\"inside\"\u003e\u003cbig\u003eClassification\u003cbr\u003e  history:\u003c\/big\u003e\u003c\/td\u003e\n\u003ctd class=\"inside\"\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" summary=\"used for layout\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eRecommended:  \u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cb\u003eDiogenite\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003eThis is 1 of 515 approved meteorites classified as Diogenite.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd class=\"inside\"\u003e\u003cbig\u003eComments:\u003c\/big\u003e\u003c\/td\u003e\n\u003ctd class=\"inside\"\u003eApproved 21 Aug 2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd class=\"inside\"\u003e\u003cbig\u003e\u003cspan\u003eWriteup\u003c\/span\u003e\u003c\/big\u003e\u003c\/td\u003e\n\u003ctd class=\"inside\"\u003e\n\u003cdiv id=\"writeup\"\u003e\n\u003cbig\u003e\u003cu\u003eWriteup from MB 112:\u003c\/u\u003e\u003c\/big\u003e\u003cbr\u003e\n\u003cdiv\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003eNorthwest Africa 16081\u003c\/strong\u003e (NWA 16081)\u003c\/p\u003e\n\u003cp class=\"MBIndent\"\u003eNiger\u003c\/p\u003e\n\u003cp class=\"MBIndent\"\u003ePurchased: January 2023\u003c\/p\u003e\n\u003cp class=\"MBIndent\"\u003eClassification: HED achondrite (Diogenite)\u003c\/p\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003eHistory\u003c\/strong\u003e: Purchased by J. Eisler from a meteorite dealer in Mauritania who purchased it from the finder in Niger.\u003c\/p\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003ePhysical characteristics\u003c\/strong\u003e: Two stones of approximate equal size and one slightly smaller stone, each partially covered in black fusion crust with exposed areas showing a light colored interior with a slight green hue.\u003c\/p\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003ePetrography\u003c\/strong\u003e: (D. Dickens, CCMS and R. G. Mayne,\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eTCU\u003c\/i\u003e) This meteorite is composed predominately of orthopyroxene with subhedral grains of up to 1mm. Most orthopyroxene grains show some exsolution. Minor and accesory phases include plageoclase, Ti-chromite, and silica.\u003c\/p\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003eGeochemistry\u003c\/strong\u003e: (D. Dickens, CCMS and R. G. Mayne,\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eTCU\u003c\/i\u003e) low-Ca pyroxene: Fs\u003csub\u003e24.0±0.5\u003c\/sub\u003eWo\u003csub\u003e2.2±1.2\u003cspan\u003e \u003c\/span\u003e\u003c\/sub\u003erange Fs\u003csub\u003e23.9-24.5\u003c\/sub\u003eWo\u003csub\u003e1.2-4.7\u003c\/sub\u003e, FeO\/MnO=28±2, ( n=8); calcic plagioclase: An\u003csub\u003e82.6±0.2\u003cspan\u003e \u003c\/span\u003e\u003c\/sub\u003erange An\u003csub\u003e82.4-82.7\u003c\/sub\u003e, (n=2).\u003c\/p\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003eClassification\u003c\/strong\u003e: HED achondrite (Diogenite)\u003c\/p\u003e\n\u003cp class=\"MBNormal\"\u003e\u003cstrong\u003eSpecimens\u003c\/strong\u003e: 20 g including probe mount at\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eTCU\u003c\/i\u003e; remainder with Mr. J. Eisler.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd class=\"inside\"\u003e\u003cbig\u003eData from:\u003cbr\u003e  MB112\u003cbr\u003e  Table 0\u003cbr\u003e  Line 0:\u003c\/big\u003e\u003c\/td\u003e\n\u003ctd class=\"inside\"\u003e\n\u003ctable border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003ePlace of purchase:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eMauritania\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eDate:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eP January 2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eMass (g):\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e419\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003ePieces:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eClass:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eDiogenite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eShock stage:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003emoderate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eWeathering grade:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003elow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eFerrosilite (mol%):\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e24.0±0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eWollastonite (mol%):\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e2.2±1.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eClassifier:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eD. Dickens, CCMS and R. G. Mayne, TCU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eType spec mass (g):\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e22.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eType spec location:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eTCU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eMain mass:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eJ. Eisler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cb\u003eComments:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003eField name TM01; submitted by D. Dickens; submitted by Dustin Dickens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd class=\"inside\"\u003e\u003cbig\u003eInstitutions\u003cbr\u003e   and collections\u003c\/big\u003e\u003c\/td\u003e\n\u003ctd class=\"inside\"\u003e\n\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003ca href=\"https:\/\/www.lpi.usra.edu\/meteor\/MetBullCollectionInfo.php?coll=TCU\" style=\"color: rgb(64, 64, 64);\"\u003e\u003ci\u003eTCU\u003c\/i\u003e\u003c\/a\u003e:\u003c\/span\u003e Oscar E. Monnig Collection, Department of Geology, Texas Christian University, Ft. Worth, TX 76129, United States;\u003cspan\u003e \u003c\/span\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003ca href=\"http:\/\/www.monniggallery.tcu.edu\/\" style=\"color: rgb(64, 64, 64);\"\u003eWebsite\u003c\/a\u003e \u003c\/span\u003e(institutional address; updated 24 Feb 2012)\u003cbr\u003e\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003ca href=\"https:\/\/www.lpi.usra.edu\/meteor\/MetBullCollectionInfo.php?coll=TM\" style=\"color: rgb(64, 64, 64);\"\u003e\u003ci\u003eTM\u003c\/i\u003e\u003c\/a\u003e: \u003c\/span\u003eGeoscience Museum, Transvaal Museum, P. O. Box 413, Pretoria 0001, South Africa (institutional address; updated 3 Mar 2011)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Top Meteorite","offers":[{"title":"Default Title","offer_id":48889147982049,"sku":"NWA16081_26_168.9_01","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1185\/2762\/files\/Top-Meteorite-Diogenite-Meteor_NWA15339_26_168.9_01_b91c3484-08b1-4912-aafd-f7725f5b4624.jpg?v=1786144393","url":"https:\/\/topmeteorite.com\/products\/168-9g-diogenite-meteorite-i-hed-achondrite-meteorite-from-asteroid-4-vesta-i-nwa-15339","provider":"Top Meteorite","version":"1.0","type":"link"}