[meteorite-list] RFS Picture of the Day - January 27, 2006

[bernd.pauli at paulinet.de]

Matt wrote:

"Good photo. But no offense to you Bernd, I have always felt thin section photos
 (of any rock) were meaniningless unless there was a description of the section"

Hello Matt and List,

Well, I got this NWA 2999 angrite thin section only recently so I haven't had enough time yet
to study it thoroughly but here is what I have already seen and written to David Weir about it:

1. the vivid bluish pink crystals are zoned, calcic olivines;
2. the dazzling white crystals are anorthites;
3. the light and medium brown, yellowish brown crystals are fassaitic pyroxenes;
4. the upper half of the TS is dominated by vivid blue diopside crystals;
5. Numerous isotropic spinel crystals appear black with crossed polars.


Best regards,

Bernd