|
Roll Overs:
#1
#2
|
|
|
Copyright (c) Paul Swartz. All rights reserved.
|
2.45 grams. Iron IVA-an
TKW 98 kg. Fall not observed. Found 1724, Sachsen, Germany.
Paul writes:
Only 6 meteorites have this classification.
From Earth and Planetary Science Letters, volume 22, issue 1:
Steinbach is a stony-iron meteorite with approximately equal amounts of silicate and metal that shows Widmanstätten structure. The silicate portion contains tridymite, orthobronzite, and clinobronzite that formed by inversion from high-temperature protobronzite. The assemblage orthobronzite-protobronzite-tridymite-metallic iron indicates an equilibrium temperature of 1200°C and an ƒo2 of 10−12 under a total pressure of less than 2 kbar. Preservation of the high-temperature phase relations implies much more rapid cooling in the 1200-700°C range than the rates that have been deduced for the development of Widmanstätten structure in the 700-500°C range.
Visit my Web Site |
Click to view larger photos
#1
#2
|
Found at the arrow (green or red) on the map below
|
|
| |
Graham Macleod
10/31/2016 2:28:43 AM |
WOW Paul,
This is a really cool meteorite M8!
Cheers |
Ben Fisler
10/30/2016 2:18:23 PM |
Just in time for Halloeen Trick-Or-Treating.....
A Cosmic Candy Bar. Delicious! |
MexicoDoug
10/30/2016 2:13:24 AM |
Was the main mass possibly found in Bohemia near the iron mines of J*chymov? What a challenging meteorite! |
| |
|