[meteorite-list] Basalt-Like Inclusion

From: Pete Pete <rsvp321_at_meteoritecentral.com>
Date: Tue, 21 Jul 2009 12:45:24 -0400
Message-ID: <BAY141-W1866B559FB12A195C2D0C8F81A0_at_phx.gbl>

 
 
Dear List,
 
I've dusted off this stone out of my box of NWA Unclassifieds, and I think it's worth sharing.
 
It has an interesting achondritic inclusion making up abut one third of the 97.2 gram mass, which appears similar to a basalt with skeletal ilmenite crystals.
The achondritic portion is not magnetic, and the chondritic portion is moderately magnetic.
 
The series of pictures can be viewed here:
https://cid-b8a3e8caaac69704.skydrive.live.com/browse.aspx/Achondrite%20Chondrite
https://cid-b8a3e8caaac69704.skydrive.live.com/browse.aspx/Achondrite%20Chondrite
 
A second click on each photo opens full resolution.
Both the scales are millimetre.
All are wet with isopropyl alcohol for enhancement of details.
 
I suspect the copper-coloured features (clearest in pics 6 and 9) to be oxidised troilite.
Most are 1 - 2mm dia.
 
If memory serves, didn't someone else on the List post pics of a similar matrix, within the past year?
 
Opinions welcomed.
 
 
       
Cheers,
Pete
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Received on Tue 21 Jul 2009 12:45:24 PM PDT