715 views

Over 13,000 photos and growing!


  3 - September - 2020

This Month       Today's Picture       Select a Month

Submit a Picture

Where is My Picture?!

The Queue


Select by   Contributor

Met Name

Met Type

Thin Sections


Recent Comments

D'Orbigny   contributed by John Divelbiss   MetBul Link


Roll Overs:     #1   #2   #3   #4   #5   #6   #7   #8   #9   #10   #11    


Click the picture to view larger photos

View all entries for   Meteorite (10)   Contributor (82)


1.61 gram thin part-slice.   Angrite

TKW 16.55 kg. Fall not observed. Found July 1979, Buenos Aires Provence, Argentina.

       


John writes:
I was fortunate to acquire from John Sinclair, a friend to many.

Features include a crystal coated vug, and a big piece of edge "vug air", and very nice open druse area that allowed for the longer clinopyroxene crystal growth. Not sure what the lighter coating is on the crystals in that area. Seems like some additional coating of something adhering to the longer crystals. More outgassing at the end of the process out in space to coat them? Or more likely...Is this a weathering coating like caliche?

Feedback is appreciated for my/our learning.
Click to view larger photos

Photo 1

Photo 2

Photo 3

Photo 4

Photo 5

Photo 6

Photo 7

Photo 8

Photo 9

Photo 10

Photo 11

Found at the arrow (green or red) on the map below

 


Comment on this MPOD                      
Name
Comment

980 max length

  Please - NO Dealer Ads in the comments
but pictures from dealers are gladly accepted

Tomorrow

D'Orbigny TS
Anne Black

This Month

John Mixter
 9/3/2020 5:29:07 PM
Nice features - Great photographs!
John Divelbiss
 9/3/2020 3:48:53 PM
thanks Anne... a friend let me know the MetBull answers my question about the weathering with: "...druses containing augite and rare centimeter-sized green olivine crystals, but pores contain variable amounts of caliche"
Anne Black
 9/3/2020 3:10:21 PM
Such an odd rock, thanks John. And so pretty in a thin-section.
 

Hosted by
Tucson Meteorites
Server date and time
5/28/2022 5:09:34 AM
Last revised
4/3/22
Terms of Use Unsubscribe