Newsletter for Orphaned Meteorites from USA – Volume 1 No. 2 -- March 2015
by Robert Verish

Bob's Bulletin

A newsletter for "orphaned" meteorites from the USA.

Petrographic Description for Meteorite C070623A

Field ID Number C070623A
Newsletter 01-2
Location California, USA
Thin-section ID Number V076
Dimensions 1cm x 1cm x 1cm
Weight 1.2 grams
Type Specimen 0.2 gram endcut - plus thin-section
Class Ordinary Chondrite
Weathering Grade high (very likely above "W4")
Shock Stage low (most likely below "S3")
Macroscopic Description -- R. Verish
The exterior of this ordinary chondrite has dark brown fusion crust. The interior is a dark brown matrix with low metal content and the chondrules and inclusions are of various sizes.
Thin Section Description -- R. Verish
The section exhibits a variety of chondule sizes (up to 2 mm), and most are poorly-defined in a dark-brown matrix of fine-grained silicates, troilite and rare metal. The meteorite is highly weathered. Very weak mosaic shock effects are present. Silicates are equilibrated (plagioclase grains average 40 µm in size). This meteorite is probably an equilbrated H-chondrite.
USA Orphaned Meteorite Images for Specimen ID# C070623A
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