[meteorite-list] Re: vesicles and green tint

From: Norbert Classen <trifid_at_meteoritecentral.com>
Date: Thu Apr 22 10:04:52 2004
Message-ID: <NCBBKMGDKLMGIBALJOFCOEPPCLAA.trifid_at_timewarp.de>

Hello Bernd, David, and Fellow Lunatics,

For those of you who want something visual, have a
look at this small specimen of the lunar DaG 262:

http://www.timewarp.de/lunar/DaG262-0.072g.JPG

Yes, that's crust and no desert varnish. Look at
the large vesicle in the upper left, and there are
several other small ones at the center.

I sold the pictured specimen not long ago, but for
anyone who might be interested in a sizeable crusted
lunar, I still have a 17.17g slice left:

http://www.timewarp.de/lunar/DaG262-17.17a.JPG

The right edge of this 45x35x5mm slice is fully
crusted, and I'm still accepting reasonable offers.
Don't be shy - I need to raise some cash for other
lunar rocks ;-))

Norbert Classen aka "The Lunatic"

> -----Original Message-----
>
> David observed:
>
> > this week i found out that moon rocks have a black
> > crust with a green tint and often have vesicles
>
> Hello David and List,
>
> Right, well observed. Several lunar meteorites are
> definitely "vesicular" and have a greenish tint!
>
> Dhofar 025: "schlieren and vesicles are abundant"
> Dhofar 026: "vesicles are abundant"
> Dhofar 081: "schlieren and vesicles are abundant"
> Dhofar 280: "schlieren and vesicles are abundant"
> NWA 482: "glassy and vesicular melt veins and melt
> pockets"
>
> As for descriptions of the crusts of lunar meteorites:
>
> DaG 400: "the meteorite is partly covered with a brownish fusion crust"
> Dhofar 081: "A brownish gray stone of 174 g covered by fusion crust"
> EET 96008: "this meteorite is covered by a black glassy fusion crust."
> MAC 88104: "Both specimens have thin gray-green fusion crust"
> MAC 88105: see 88104
> QUE 93069: "Thick gray-green frothy fusion crust covers the top while
> thin granular medium olive green-brown fusion crust
> covers the bottom."
> QUE 94269: "One side of this flat stone has thick, gray-green, frothy
> fusion crust."
>
>
> Best wishes,
>
> Bernd
>
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Received on Sun 26 May 2002 06:26:03 PM PDT