304 views

Over 15,000 photos and growing!


  16 - May - 2016

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

NWA 7835   contributed by John Kashuba   MetBul Link

Click the picture to view larger photos
View all entries for   Meteorite (4)   John Kashuba (9)


Photo by John Kashuba.   Copyright (c) John Kashuba.

What is a thin section?       What do all the colors mean?    
Thin section in cross polarized light.   Achondrite-ung

TKW 56 grams. Fall not observed. Purchased November 2003.

John writes:
Some mineral grains in NWA 7835 contain sheets of multitudes of small inclusions, perhaps empty voids. Some of these sheets are wavy like hanging curtains. When such a grain is thin sectioned the resulting sample contains a ribbon of each curtain that was sliced through. Wavy curtains give rise to wavy ribbons. Here, wavy ribbons almost look like helixes. This view is about 0.3mm wide and is in cross-polarized light.

For more information please see my article in Meteorite Times.


  Click to view larger photos     #1
 


Comment on this MPOD                      
Name
Comment

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

Tomorrow

Mundrabilla
John Divelbiss

This Month

1 picture in the Queue
chris urbano
 5/17/2016 12:57:22 PM		 Hi john!! thanks for this awsome pic !!
MexicoDoug
 5/16/2016 3:56:07 PM		 ...Tonight will have pleasant dreams of an ET space dinosaur whose bone fossilized into John's thin section. Proof on what directed the formation of all the meteorite types, time for a press release!
Anne Black
 5/16/2016 3:47:00 PM		 Glad you all like it. If you go look at the article in Meteorite-Times (see link above) you will see a lot more pictures. And I have half a dozen of those thin-sections, all of them with those strange ribbons. Coming soon to a website near you! ;-))
Colonel Pulaerko
 5/16/2016 10:50:32 AM		 Astounding!
John Lutzon
 5/16/2016 9:54:15 AM		 Andy Warhol's version of sliced, crusty bread with poppy seeds. All of your scope pics are superb. Thanks.
John Divelbiss
 5/16/2016 9:51:56 AM		 John K ...Thank you for sharing your passion. Now this picture(also in Meteorite Times today w/more) is Cool! (note to Anne :) As for what it looks like? My take is "meteorite DNA".
Graham
 5/16/2016 4:00:21 AM		 Wonderful section John...reminds me of pictures of dunes on the Martian surface.
 

Hosted by
Tucson Meteorites		 Server date and time
4/27/2024 2:52:13 PM		 Last revised
03/29/24		 Terms of Use Unsubscribe