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Muonionalusta   contributed by David Allepuz i Sunyé, IMCA 1496   MetBul Link


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View all entries for   Meteorite (11)   David Allepuz i Sunyé (16)


Copyright (c) Copy allowed with reference to David Allepuz.
29.7 gram fragment. 35.8 x 25.1x 18.1 mm.   Iron, IVA

TKW 230 kg. Fall not observed. First found 1906 in Sweden.



 


David writes:
It’s my second Munio fragment but all my meteorite friends know that I don’t like irons, I love LL3 and L3 chondrites, but wen I saw this fragment at the Barcelona Mineral Show (Expominer) last November it quickly reminded me about an illustration from the book Meteorites by Brian Mason, dated 1962. I bought the meteorite from my friend, expedition partner and meteorite dealer José Vicente Casado, and when back home searched the book and saw that some of the faces looks really similar! Brian Mason’s “Meteorite” book was edited by John Wiley & Sons in 1962, no ISBN but Library of Congress Catalog is 62-17466. Look at page 140 !!


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This Month

2 pictures in the Queue
David Allepuz
 12/17/2015 10:32:54 AM		 Thanks for all your comments. Herbert, it's amazing that this image is nearly 70 years old than I suspected. Please publish a image of that book ! Best regards and Merry Xmas from Barcelona!
Graham Macleod
 12/11/2015 5:22:49 PM		 Hi David, This is a great Muonionalusta crystal. The diagrams you provided are incredibly in depth and well done.
Larry Atkins
 12/11/2015 1:02:55 PM		 Thanks for sharing that. I'm not much of an iron collector and I'd probably never have known of or seen such a demonstration.
Herbert
 12/11/2015 12:44:15 PM		 Nice specimen and nice photos. By the way, the graph showing the appearance of the Wimanst*tten pattern depending on the cut surface trough the octaheder first appeared in Tschermak's "Lehrbuch der Mineralogie" ("Textbook of Mineralogy") in 1894, nearly 70 years before Mason's book. (Or, at least, it's the first publication if this graph I am aware of...)
Ben Fisler
 12/11/2015 10:26:37 AM		 David, great composition and photography of a classic specimen.
Wilford Krantz
 12/11/2015 8:39:05 AM		 Killer!
Graham
 12/11/2015 5:38:32 AM		 What an excellent illustration of the "Thompson Structure" ;-) and how it changes with orientation.
Bernd Pauli
 12/11/2015 4:49:14 AM		 Truly a very graphic demonstration of the "crystallographic orientation" of the Widmanstatten pattern!
Werner Schroer
 12/11/2015 1:28:29 AM		 I had a look at page 140 of Mason's book and you are right, some of the faces look definitely similar. Great photos, thanks for sharing.
John Hope
 12/11/2015 1:19:46 AM		 Thanks very much for sharing your story and great photo's of this very nice specimen David. The graphics of the Widmanstatten pattern of etched surfaces is very special.
 

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