[meteorite-list] NWA 3159 - Vesicular, plutonic eucrite with (pre-)terrestrial crystals?
Dave Harris
entropydave at ntlworld.com
Sat Jan 13 11:13:14 EST 2007
Hi,
My Mt. Taz definitely has euhedral crystals in the vesicles - unfortunately,
my binocular microscope only magnifies to about x35 or so and they are very
small (very sub-mm ) but become apparent when the specimen is tilted and the
light glints off the faces.
The structure is typically pyritohedral in shape - I am assuming (a
dangerous thing to do) that these are Troilite xls.
..and I never got a response as to what gases made the vesicular structure!
Best
Dave
IMCA #0092
Sec.BIMS
www.bimsociety.org
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