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 C070106A

Field ID Number C070106A
Newsletter 01-2
Location California, USA
Thin-section ID Number V071
Dimensions 4.5cm x 4cm x 3.5cm
Weight 121.4 grams
Type Specimen 27 gram endcut - plus thin-section
Class Ordinary Chondrite
Weathering Grade high (very likely above "W3")
Shock Stage low (most likely "S2" or lower)
Macroscopic Description -- R. Verish
The dark, grayish-brown exterior of this chondrite has no fusion crust. In fact, several chondrules are quite visible, standing in high relief, suggesting that the groundmass is not very resistant to weathering.The interior is a dark-brown, porous matrix with low metal-grain content and the chondrules and inclusions are quite variable in size.
Thin Section Description -- R. Verish
The section exhibits a variety of chondule sizes (some up to 3 mm), and most are somewhat-defined in a dark-brown, iron oxide-rich matrix of fine-grained silicates, troilite and rare metal. The meteorite is highly weathered. Very weak mosaic shock effects are present. Silicates are equilibrated. This meteorite is probably a low-shock, equilbrated H-chondrite.
USA Orphaned Meteorite Images for Specimen ID# C070106A

Main-mass (is the image to the left) -- -- -- | -- -- -- (the image to the right is...) the Type-specimen

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