Tuesday, 5 April 2016

Blaine Reed Meteorites For Sale- List 188 - Bassikounou, Belle Plaine plus

Blaine Reed Meteorites For Sale- List 188 - Bassikounou, Belle Plaine plus

Blaine Reed
P.O. Box 1141
Delta, CO 81416
Ph/fax (970) 874-1487

…………………………………………………………LIST 188

April 5, 2016

BASSIKOUNOU, Mauritania: (H5). Fell October 16, 2006. Tkw = 80+ kilograms.
This stone is a bit of an enigma. It has a broken face (around 40mm x 40mm) that shows a fair amount of rusting but yet the crust that covers the rest of the stone is fresh and black and only has some faint hints of dark maroon/brown that might be from oxidation. The specimen sits and displays very nicely on this flat surface having kind of a nice mountain profile shape to it. I do believe that this broken surface is actually a very late atmospheric break. There are some slickenside areas (likely old shock veins that acted as weak areas in the stone facilitating the break) and the fusion crust around the edge (under good magnification) has a rounded edge indicating some melt flow rather than a sharp angular break. Nice display piece at a price about as cheap (per gram) as you will ever find a nice fresh crusted witnessed fall these days.
283.2 gram fresh crusted individual – 100mmx 45mm x 40mm - $750

BELLE PLAINE, Kansas: (L6). Found 1950. Tkw = 96.4 kilograms.
This is an incredible super thin complete slice (note: due to the thinness of this piece it is polished only on one side). It shows lots of fine metal and troilite grains in a dark greenish gray matrix. There are a number of fairly large distinctly green chondrules and melt clasts as well. I have handled a number of these slices over the years and some had what looked like a break that had been glued. Well, this particular piece probably has the largest such vein I have seen in a slice of this meteorite. This vein runs top to bottom across the middle of the slice and several areas of it are amazingly wide (one such part is roughly 5mm x 30mm). FEAR NOT. This vein is NOT a repair job! Close inspection reveals something quite amazing. This vein is composed of many small nearly black and white angular fragments all mixed together. So, this likely does have some melt component to it, but it is mostly a fine breccia vein. Under a 10X or so lens, the vein itself looks a lot like a miniature Lunar anorthositic breccia. I can only recall ever seeing such breccia veins in the Belle Plaine meteorite.
222.3 gram complete slice – 230mm x 140mm x 1.5mm - $750

DHOFAR (1514), Oman: Rumurutitie (R3.6). Found November 20, 2008. Tkw = 1749 grams.
I got these few little cut fragments from Robert Ward while in Tucson. The one stone that was found was large but I don’t know if much of it was ever released to collectors. An internet search brought up pretty much nothing. Regardless, I suspect I am going to wish I had more of this. It turns out that there are only three meteorites in the world classified as an R3.6. One small one is from Antarctica the other is a bit over 300 gram NWA stone. So, for most collectors looking to have all the different classifications, this might be their only chance to add an R3.6 to their collection for some time. These are all cut fragments. The two larger pieces are polished. The two small pieces in a bag together are not.
a) .8 grams – two cut fragments - $25
b) 1.7 gram cut fragment – 14mm x 14mm x 7mm - $50
c) 5.8 gram cut fragment – 20mm x 17mm x 10mm - $160

NWA (2086): Carbonaceous chondrite. (CV3). Found 2003. Tkw = about 33 kilograms.
This is one of my favorite carbonaceous chondrites. This has a color similar to Axtell and nearly the same chondrule rich, matrix poor texture as well. This is a nice little “complete” slice (no cut edges) of a natural fragment in a neat little display box.
3.2 gram complete slice – 43mm x 25mm x 1mm - $35

NWA (6973): Carbonaceous chondrite (CK5), S2, W2. Found 2011. Tkw = 89 grams.
This is a nice complete slice in a plastic display box with two labels. The label on the side with the specimen has the basic information typed. The one on the back is a COA from Mirko Graul and has the information hand written. The edge of this piece looks to be fully fusion crusted. I can’t tell exactly for certain as the display box is sealed and has a layer of desiccant (not sure why with this particular type meteorite as all the magnetic stuff is magnetite, not rustable metal. But then, parts of Germany are probably almost humid enough to rust a tektite) that I don’t want to risk spilling by opening this thing. Also, for the same reason, the thickness measurement is merely a good guess. This is probably a once only chance, given the tiny total known weight of this, for those of you collecting carbonaceous chondrites to add a piece of this particular one to your collection.
5.698 gram complete slice – 35mm x 25mm x 2mm - $100

NWA (7876): Ordinary chondrite. (L3.15). Found 2012. Tkw = 240 grams.
Wow! This is one for people that like chondrules. This thing is absolutely loaded with them. It seems to be nothing but chondrules. Close inspection seems to show that the “matrix” is nothing bet yet more even smaller chondrules. Neater still is that they show a lot of different colors. This looks a lot like (aside from being much fresher) Wells or Ragland but with smaller chondrules and less matrix. This is also a complete slice. Roughly 80% of the edge shows pretty nice black crust with a roughly 20mm long are looking to be light secondary crust.
14.7 gram complete slice – 45mm x 40mm x 3mm - $450

SEYMCHAN, Russia: (Pallasite). Found 1967.
This is a book-end type cut piece that is a good and interesting display piece. The backside is completely natural with a nice pleasing brown color and a nice natural patina that is not scaly. On the cut face, the olivine makes up a little less than half of the cut surface, but not by a lot. These olivines are generally quite large (around 15mm x 10mm on a few of the bigger pieces) and most have a very different look to them. There are plenty that show a typical orange/brown color but over half have a very dark to nearly black appearance. In fairly strong light these have a distinctly gray (with some faint hints of green) color. However, tipping the specimen around in this light shows a surprising depth to these crystals. More interestingly still is that these particular crystals show a very strong shiller effect – looking much more like labradorite than olivine in many cases! I seem to recall reading that this shiller effect is caused by shock and is one of the best pieces of evidence that an olivine crystal (or faceted gem stone) is from a meteorite as terrestrial ovlivines certainly do not ever show this effect. I have seen faint hints of this shiller in many meteoritic olivines, but nothing compared to the strength of these. So, this specimen obviously came from a part of the original body that experienced some serious impact shocks.
233.9 gram “book end” specimen – 83mm x 65mm x 15mm - $800