Bob's Bulletin
A newsletter for "orphaned" meteorites from the USA.
| Field ID Number | N150814D |
|---|---|
| Newsletter | 01-3 |
| Location | Nevada, USA |
| Thin-section ID Number | V15DD |
| Dimensions | 2.1cm x 1.5cm x 1.3cm |
| Weight | 7.25 grams |
| Type Specimen | 1.4gram endcut - plus thin-section . |
| Class | Ordinary Chondrite (quite possibly unequilibrated) |
| mid-range (but very likely above "W3") | |
| low (most likely "S2" or lower) | |
| Macroscopic Description -- R. Verish | |
| The exterior of this meteorite is so weathered it can't be determined whether it is a whole individual stone or a fragment. The dark, brownish-black exterior of this chondrite is lacking a fusion crust. Stone appears to have experienced some sort of mechanical weathering, or some sort of chemical-weathering that has preferrentially attacked the groundmass leaving the chondrules standing-out in high relief. The interior is a dark-brown, porous matrix with very low metal-grain content, and few troilite grains. The chondrules and inclusions are very distinct, and on the exterior 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 groundmass of fine-grained silicates, troilite and rare metal. Very weak mosaic shock effects are present. Silicates are unequilibrated. This meteorite is probably a low-shock, unequilibrated chondrite.
Name: N150814D - This meteorite might be paired to N150814C, another ordinary chondrite from this locality. |
|
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.