Newsletter for Orphaned Meteorites from USA – Volume 1 No. 3 -- September 2015
by Robert Verish

Bob's Bulletin

A newsletter for "orphaned" meteorites from the USA.

Petrographic Description for Meteorite N150814E

Field ID Number N150814E
Newsletter 01-3
Location Nevada, USA
Thin-section ID Number V15DE
Dimensions 2.1cm x 1.5cm x 1.3cm
Weight 15.25 grams
Type Specimen 3.4gram endcut - plus thin-section .
Class Ordinary Chondrite (possibly an L4)
Weathering Grade mid-range (but very likely above "W3")
Shock Stage low (most likely "S2" or lower)
Macroscopic Description -- R. Verish
This meteorite specimen is a fragment of a chondritic stone. Although the exterior of this fragment has experienced little mechanical weathering, it has undergone chemical weathering. The dark, brownish-black portion of this fragment is the exterior of this chondrite. It is a vesicular, relict fusion-crust. The reddish-brown portion of this fragment's exterior is actually an exposed portion of the interior of the original chondritic stone. This surface has weathered to a polished patina. This weathering has preferrentially attacked the matrix leaving the chondrules standing-out in high relief. The interior of this fragment has a very low metal-grain content with few troilite grains. The chondrules and inclusions are distinct, and on the exposed surfaces they stand-out in high relief.
Thin Section Description -- R. Verish
The section exhibits a variety of chondule sizes (and angular inclusions), in a porous matrix of fine-grained silicates, troilite and rare metal. Very weak mosaic shock effects are present. Silicates are minimally equilibrated. This meteorite is probably a low-shock, low-petrologic grade ordinary chondrite.
Name: V15DE - This meteorite might be unpaired to the other ordinary chondrites from this locality.
USA Orphaned Meteorite Images for Specimen ID# N150814E

The above example is one way in which I can bring attention to what I predict will be an increasing number of unclassified meteorites found here in the USA. Hopefully, attention will be drawn to what I see as a growing problem, and maybe some institution will offer to help get some of these orphans classified and cataloged.

A newsletter for "orphaned" meteorites from the USA.

For for more information, please contact me by email:
bolidechaser at yahoo-dot-com