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| Tanezrouft 068 : H4/5 © Meteoriteshow |
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| Tanezrouft 068 : H4/5 © Meteoriteshow |
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name : Tanezrouft 068 Date of find : November 27, 2002 Total mass : 236 g # of fragments : 1 single fragment Place : Tanezrouft (Algeria) Meteoritical Bulletin n°88 (Expected May 04) Classified by : ENS Lyon - France Type : H4/5 Weathering grade : W3 Shock level : S6 Fa% : 18.82% (range: 18.1-19.4%) Fs% : 16.01% (range: 14.6-17.1%) Remarks : TANEZROUFT 068 is an H4-H5 chondrite. Olivine and pyroxene show planar fractures, ondulotary extinction and mosaicism. Feldspar is partially converted to maskelynite. It should be therefore classified as shock stage 4. However one shock vein (that would be expected for higher shock degrees i.e. S6) was seen in the studied thin section. This shock vein was investigated by Raman micro-spectroscopy but no high-pressure crystals was detected. |
 on site picture : November 27, 2002 |
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 Main mass with a cut section (click on picture to enlarge) |
 Cut section (click on picture to enlarge) |
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Some BSE pictures of Tanezrouft 068 are displayed there : |
 BSE pictures  |
