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NWA 5311

 

NWA 5311

Found Sahara, 2008

Stony-Iron

Mesosiderite Class-B

Specimen is a 1.09gg slice/FONT>

Total Known Weight for this meteorite is 147g
 

The more ultramafic, orthopyroxen-rich members of Class-B are enriched in a diogenite like coponment, while the more basaltic (usualy catablastic breccia), plagioclase rich members of Class-A are enriched in an anorthitic, cumulate eucrite-like componment. The origin of Class-B is deepest than Class-A in mesosiderite parent body/bodies...

Place of purchase: Midelt
Date: 2007
Mass (g): 147
Pieces: 1
Class: Mesosiderite
Shock stage: Low
Weathering grade: moderate
Fayalite (mol%): 27.7
Ferrosilite (mol%): 23.8
Wollastonite (mol%): 1.8
Classifier: T. Bunch and J. Wittke, NAU
Type spec mass (g): 19.83
Type spec location: PSF
Main mass: location not given
Comments: Plag =95.5; metal Ni=6.2wt%

7800元台幣

下圖為1.893克

                                         Mesosiderite - Iron Nodule

 

Find 2007

in Sahara, Northwest-Africa

TKW: 147g only !!

Perfect etched Slice of the Iron Nodule - very rare !!

weight: 1.893g

size: 17 x 9 x 2 mm

14200元台幣



 
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