Ashdon
 >View Microscope
 >View Object
Fact sheet
Description: 

The Ashdon meteorite fell on 9th March 1923. It is an ordinary chondrite weighing 1.3 kg and shows remarkable flow lines on its exterior where melting occurred during its passage through the Earth's atmosphere. Ashdon is near Saffron Walden, Essex, England.

The Ashdon meteorite is classified as an L6 meaning it has a low iron content (5-10%) and indistinct chondrules that have been metamorphosed under conditions capable of homogenising all mineral compositions. Look in PPL to see a few chondrules (rounded features - rotation 1) consisting of olivine and pyroxene crystals. The thin section is unpolished, so there is no reflected light view. However, in PPL the rusty marks around the opaque (black) crystals highlight the location of the metallic iron in this sample.

See also:
http://www.lpi.usra.edu/meteor/metbull.php?code=2346

http://www.bimsociety.org/index.php

Specimen: BM1923,484
Thin section: BM1923,484

In Place
In Time
Accuracy:
Location precision: 
Good
Timescale:
Timescale: 
Hadean
Ma = Millions of years ago
In Focus
Theme:

Theme:

What\
Type:
Type: 
meteorite
What\
Category:

Category:

What\
Rock-forming minerals:

Rock forming mineral:

What\