Sahara
02500
Published in # 88
Met Bull in July 2004.
Meteoritical Society
Found during several expeditions in 2001/2002/2003
L3
Brecciated
Chondrite.
Sahara
02500 BIG for sale
New chondrite find from Sahara. (contact: Albert JAMBON
UPMC, Paris)
Discovery: Between February and June 2001, a person prospecting for meteorites
in Sahara found 42 individuals of the same fall for a total weight of 10,850
Grams. The larger individual weighs 1065 grams and presents flights marks and
fusion crust. In November 2001 and January 2002, a party under supervision of
the first discoverer recovered additional 400 kg of the same meteorite. The
bigger individual recovered weighs 28 kg. Individuals between 1 and 10 kg present
deep and well marked regmaglypts. Most individuals above 10 kg broke up on landing.
Some more individuals were found in 2003. for a weight of 46 kilos.
Type Specimen: ENS Lyon/Philippe Gillet (one wafer of 26.25g, one end
cut of 62.09g) and UPMC Paris/Albert JAMBON one stone with nearly complete fusion
crust (516.16 g), one end cut (19.07g) and one wafer (26.45 g).
Main mass:: Caillou Noir: 410 kg. ( submitted to Nom Com ) Additionnal
mass 46 kilos.
Coordinates: latitudes: from llb° 28'029 to llb° 02'198 Longitudes: from
LLb °03'252 to (LLb-1)° 50'543
Note: llb and LLb are positive integers that will be disclosed later
by finder. Coordinates of type specimen: llb°16'007 et (LLb-1)°56'946
Classification: Chondrite : L3.8, S2, W1
Macroscopic Aspect : Nearly complete brown greenish fusion crust. About
60% chondrules, from one mm to nearly 50 microns, grey and white in a slightly
oxydized matrix. Numerous clasts (about 5-10% vol, but this is only a guess
due to statistical considerations) of several types. 1) some dark to light grey
and angular from a few mm to several cm. 2) brown and irregular 3) Angular dark-brown
from a few mm to a few tenths of mm. Metal and sulfide occur as spot of a few
mm to a few tenths of mm. Conspicuous signs of oxydation.
Mineralogy: olivines Fo 74 ±2 (68-86), pyroxenes Mg#77±5 (68-86). Numerous
clasts of small size (a few mm or less) some of which dark and nearly opaque
others sub-opaques or well cristallized without matrix with broken chondrules
some of small size and made up of matrix. Typical porphyric chondrules, a few
barred chondrules, sometimes broken. Some devitrified partially vitrous. Metal
and sulfides partly oxydized.
Main mass at Caillou Noir, 100 chemin des Campènes, 74400 Chamonix, France.
Lithologies found in Sahara 02500:
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Full Slice, fusion crust. weight: 121.70g dimensions 110 mm 75 mm * 7 mm Many clasts different lithologies, inclusions. A representative slice. Price: $ 36 |
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| Full
Slice, fusion crust. weight: 13.86 g dimensions 47 mm * 33 mm *4.5 mm Different Clasts, small inclusions. Price: SOLD |
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We
hold many individuals of this meteorite from some g to 17 kilos.
Note: Temp 01003 or SWA 01003 are Caillou Noir proprietary identification #.Wadi Mellene is the local name of the place where the first individual was found. It was changed intoSahara 02500, the official Met Society # when the meteorite was published by the Nomenclature Commitee of the Meteoritical Society in The # 88 met Bull in July 2004.
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© Caillou Noir 2001/2006