Showing posts with label Impact glass. Show all posts
Showing posts with label Impact glass. Show all posts

Wednesday 25 April 2018

Blaine Reed Meteorites for Sale- List 214 Linton Rohr Collection Part #3

Blaine Reed Meteorites for Sale- List 214 Linton Rohr Collection Part #3

Blaine Reed
P.O. Box 1141
Delta, CO 81416
Ph/fax (970) 874-1487                                                                                                                               
                            LIST 214

April 25, 2018

Dear collectors,

Here is the e-mail version of my recent mailed paper list.

CAMPO DEL CIELO, Argentina: Coarse octahedrite (IAB)
CAMPO DEL CIELO, Argentina: Coarse octahedrite (IAB). Found 1576.
I really hesitated to put these on here, as I really like to have multiple pieces of each offered item on these catalogs. However, year after year, I bump into these wonderful highly silicated pieces when I do inventory and have decided that they are too nice to keep leaving in deep storage. These are all really full of graphite, silicates, sulfides, (often in bands through the specimen) and look nothing like a typical piece of Campo. The two larger pieces are a bit wedged but could be split into thinner slices if one was so inclined. Wish I had gotten more of these when they were (briefly) available years ago (they were not particularly cheap back then either though). Again, these (unfortunately) are the ONLY pieces I have, so act fast if you want one.
1) Complete slices: Highly silicated:
a) 73.9 grams - 80mm x 50mm x 4mm - $130
b) 194.4 grams - 95mm x 70mm x 7mm - $240
c) 284.8 grams - 97mm x 80mm x 9mm - $300

NWA (8217): Ordinary chondrite (L5), S3, W2. Found 2013
NWA (8217): Ordinary chondrite (L5), S3, W2. Found 2013. Tkw = 490 grams.
This single stone was reported as being bought in Temara, Morocco in December of 2013. This is the last of the “prestudied” NWA meteorites I picked up a few years ago. These had some external or internal feature that made them look somewhat interesting (I don’t know what that was on this one – this looks pretty much like a normal moderately weathered L5 to me, both inside and out) so it was sent in for research work. This one, obviously, turned out to be common. I picked it up (as the original owner didn’t want to mess with it any further) and prepped it (cut and polished) for sale. Again, nothing special: a moderate amount of metal and sulfides visible in a medium brown matrix, just an affordable studied meteorite.
1) Slices:
a) 8.5 grams - 40mm x 15mm x 5mm - $11
b) 13.2 grams - 50mm x 25mm x 4mm - $17
c) 23.2 grams - 57mm x 30mm x 5mm - $28 – only piece this size.
d) 31.8 grams - 57mm x 44mm x 5mm - $37 – complete slice.
2) End piece:
a) 82.9 grams - 57mm x 43mm x 23mm - sold

NWA (5781): Ordinary chondrite (LL3.3)
NWA (5781): Ordinary chondrite (LL3.3). Found before February 2009. Tkw = 891 grams.
A single stone was purchased during the 2009 Tucson show. The Meteoritical Bulletin reports 2 pieces totaling 1060 grams because the find data for this stone got confused with another LL (an L/LL 3-6 breccia – now NWA 8738) that was submitted for research at the same time as this one. Regardless, cutting revealed a fantastic chondrule-rich interior. Chondrules of all sizes and many colors (along with some melt pockets) packed tightly together with virtually no visible matrix. This is fairly fresh. It doesn’t show much obvious bright metal (but I don’t think it had much to begin with) but it has a lot of sulfides, with many (if not most) of the chondrules being armored with it. I don’t have a lot of this material as I have already sold 2/3 of it. It seems to sell itself the few times I have shown collectors pieces of it in the past.
1) Slices:
a) 3.0 grams - 24mm x 14mm x 3mm - $36
b) 6.2 grams - 27mm x 27mm x 3mm - $74
c) 14.4 grams - 38mm x 27mm x 4mm - $165
d) 29.6 grams - 60mm x 47mm x 4mm - $325
e) 78.7 grams - 90mm x 50mm x 6mm - $700 – complete slice. Piece in group photo sold. This one looks very similar but is somewhat wedged (and thus priced a bit cheaper per gram than the original offered piece).

SAHARA (97096): Enstatite chondrite (EH3)
SAHARA (97096): Enstatite chondrite (EH3). Found 1997. Tkw = about 28 kilograms.
Actually, some of this was labeled Sahara (97072) when I got it (before cutting) but I am using the number that the Meteoritical Bulletin uses for all of the others being “paired to”. This is nice, fresh material. It has lots of fine-grained metal and lots of chondrules. This is a very primitive meteorite and I have seen a number of research articles on it the past few years because of this. However, I just discovered something surprising about it – it fluoresces! I had a fancy (and somewhat expensive) L.E.D. black light flashlight on my desk (a Convoy S2+). For grins I shinned it on the slices of this I was preparing to catalog. I was shocked by the results. This meteorite has lots and lots of tiny grains scattered throughout it that fluoresce a bright neon orange! Now I have something I can show the folks (I get some at EVERY show) that come in carrying a black light unit asking “what have you got that fluoresces?” (I used to have to say “nothing”).
1) Slices:
a) .70 grams - 10mm x 10mm x 2mm - $30
b) 1.6 grams - 15mm x 14mm x 2mm - $68
c) 2.6 grams - 23mm x 17mm x 2mm - $110
d) 5.0 grams - 34mm x 20mm x 2mm - $210
e) 9.1 grams - 50mm x 25mm x 2mm - $375
f) 17.2 grams - 70mm x 44mm x 2mm - $690 – nice complete slice!

NWA (8044): Achondrite (Howardite)
NWA (8044): Achondrite (Howardite). Found before February 2011. Tkw = 715 grams.
This is a case where an item turned out to be more interesting than what I thought when I bought it. I got around 30 fragments that I was told were “a weird eucrite” but looked like an old mesosiderite to me. Research work showed that this is actually a howardite with a lot of FeNi metal veins (highly weathered though) running through it. I asked if it might be a Mesosiderite but was told that it clearly is not due to its mineralogy. This is mostly pyroxene as the silicates of a mesosiderite would be but this also has areas of both basaltic and cumulate eucrite material. So now (hopefully) more work will (eventually) be done to determine the origin of the metal (likely from an iron impactor). These are all cut and polished fragments and don’t look like any other howardite I’ve ever seen.
1) Cut fragments:
a) 4.0 grams - 20mm x 14mm x 5mm - $48
b) 9.0 grams - 30mm x 20mm x 7mm - $110
c) 15.3 grams - 37mm x 30mm x 6mm - $175
d) 20.1 grams - 40mm x 34mm x 12mm - $220
e) 30.2 grams - 43mm x 32mm x 15mm - $325


VACA MUERTA, Chile: Stony-iron (Mesosiderite)
VACA MUERTA, Chile: Stony-iron (Mesosiderite). Found 1861.
These are pieces that I set aside around 20 years ago. Back then, I paid a premium for them as they are far fresher than the typical material from this find. Each of these had a flat spot ground into them to show the high fresh metal content of each piece. Cutting these revealed that they are indeed quite fresh internally and actually look like a mesosiderite should. In typical Vaca Muerta pieces, enough metal has oxidized to make them look much more like a chondrite (but then I’ve seen estimates that this stuff has been on the ground for up to 1 million years!). I can’t really call these “end pieces” (though many of them are) because of the flat spot that the original seller ground into them. This flat spot usually did not line up well for further cutting (either in half or slicing – but then these were really too small to slice) so I ended up with pieces having a sanded edge or areas of the back side polished. Anyway, these are really fresh specimens of Vaca Muerta that are rarely seen and representative of the mesosiderite type.
1) Cut fragments:
a) 8.9 grams - 30mm x 20mm x 6mm - $45
b) 13.2 grams - 25mm x 24mm x 20mm - $66
c) 19.9 grams - 45mm x 27mm x 12mm - $100
d) 31.9 grams - 47mm x 40mm x 10mm - $160 – only one this size.
e) 46.0 grams - 60mm x 32mm x 10mm - $230 – only one this size.
f) 107.7 grams - 55mm x 40mm x 14mm - $525 – has some nice eucritic inclusions.

IMPACT GLASS: Zhamanshin crater, Kazakhstan:
IMPACT GLASS: Zhamanshin crater, Kazakhstan:
I don’t think I’ve ever had or offered big hunks of an impact formed glass before – just small pieces that were single digit grams size to maybe a few 10s of grams sized. Here are some really big paperweight/ table display pieces I recently picked up. These are all obviously glass and not just dirt and rocks stuck together by a little bit of glass (which is what most impactites are structurally). This material is a swirled mix of dark gray/ black and green glass (most pieces are heavier on the green glass). These are from the roughly 1my old, 13.5km diameter Zhamanshin crater – where Irghizites (considered by many to be a type of tektite) are from (and, up till now, the only material I have had from this impact site). Most pieces are end pieces/ cut fragments but I do have a few thick slices available. Given the size of these things, US shipping on these will be around $6 to $10. Overseas, I’ll have to calculate shipping prices.
1) Cut fragments:
a) 239.5 grams - 115mm x 85mm x 20mm - SOLD
b) 281.0 grams - 100mm x 85mm x 30mm - SOLD
c) 581.2 grams - 150mm x 105mm x 30mm - SOLD
d) 766.0 grams - 150mm x 115mm x 45mm - SOLD
2) Slices:
a) 200.7 grams - 90mm x 80mm x 15mm - SOLD
b) 295.7 grams - 130mm x 80mm x 15mm - SOLD

Please note:
    I do have “group photos” of each lot of material above I can e-mail to those who want (please tell me what material you want a photo of). These contain the exact pieces cataloged under each name. I often have duplicate (well, similar sized anyway) pieces of many listed items. I generally send the first folks to order an item the largest available for the size. You can request the exact pictured piece if it is still available however.
 Shipping:  The post office has, once again, raised rates quite substantially. For small US orders $4 is now needed. Larger orders are now $6 to $14 (insurance is extra if desired – I’ll look it up if you want it). Overseas prices have gone up A LOT the past couple years. Now small overseas orders are around $13 (I’ll have to custom quote any larger items/ orders). Registration (recommended on more valuable overseas orders) is $15.
    I do have a fax machine that seems to work (but I have to answer it and manually turn it on), so overseas people can contact me that way if they must.  How ever, for overseas orders, it probably is best to go ahead and use my brmeteorites@yahoo.com e-mail.

Tuesday 20 June 2017

Blaine Reed Meteorites For Sale- List 206

Blaine Reed Meteorites For Sale- List 206

Blaine Reed
P.O. Box 1141
Delta, CO 81416
Ph/fax (970) 874-1487
……………………………………………………LIST 206
June 20, 2017

Dear collectors,
Here is a third offering pulled together from a batch of material I recently got from a collector who has decided to trim his collection a bit.

For this offering (and hopefully most others in the future) I will put a group photo in the photo archives in the brmeteorites_list Yahoo group. It will be creatively titled “List 206”. For those of you that acquire my offerings through the blog posting (done by a friend in Japan – Dirk Ross) the photo will likely be directly connected/ displayed with this particular posting.

(Click on Image to Enlarge)
Blaine Reed Meteorites For Sale- List 206
Edeowie Glass, Impact glass, South Australia.
I had never heard of this material until I received this specimen. It is not certain what formed this rare material but it does contain quartz that shows shock effects, strongly hinting at an impact origin (rather than as lightning formed fulgurite, which is the next most popular formation theory). Small spots of this glass are found on top of what looks like burnt/ scorched sediments in the small area where this material is found. The structure of this glass: highly fused top, poorly fused, frothy mid zone down to local dirt and rocks stuck to the bottom, closely resembles pieces of trinitite glass (the stuff formed by the world’s first nuclear explosion). This suggests that, rather than a true impact crater glass, this material likely formed (like trinitite) by a large low-altitude blast – similar to (but perhaps larger) than Tunguska. This interesting piece is pretty much exactly matches the description of a typical specimen of this unusual glass.
3.7 gram fragment as found – 25mm x 16mm x 12mm - $10  SOLD

GRADY (1937), New Mexico: (H3). Found 1937, Tkw = 9.3 kilograms.
Here are three small but quite fresh fragments of this scarce meteorite. Inspecting them with magnification reveals all kinds of light to medium gray chondrules in a light gray matrix. These pieces are all around 10mm x 5mm to 10mm x 9mm in their larger surfaces.
1.17 grams – three fragments - $15

HENBURY IMPACT GLASS, Henbury craters, Australia.
The label with these specimens says “impactite” but these are NOT the usual frothy quasi-glassy impactites that have been available from these craters. These show obvious black glass. The larger (.6 grams – 15mm x 9mm x 6mm) is almost entirely glass, only showing a few small spots of attached orange dirt or rock. Frankly, this specimen looks much like an Irghizite – having a stretched, melt flow look to it. The other piece (.7 grams – 11mm x 9mm x 9mm) looks like a piece of orangish brown rock (the reason it is heavier than the other piece despite being smaller) that has a thick coating of black glass on one side. Interesting items and certainly not the typical “impactites”.
2 pieces in a display container - $25

NWA (unknown): L or LL3.
I sure wish the classification info for this one didn’t get lost. It is obviously something that someone thought was special. They took the time (and high expense) to have this cut with a wire-saw. None the less, this is a really nice specimen for showing chondrules. It is absolutely loaded with them. They come in all kinds of sizes and all kinds of colors. This really reminds me of Wells, Texas (LL3.3) and Ragland, New Mexico (LL3.4). This is also a complete slice of whatever mass it was cut from. This is likely something quite special but priced pretty much like a common LL3 here.
16.8 gram slice – 52mm x 50mm x 3mm - $100

SUEVITE, Nordlingen Ries Craters, Germany.
Here is a slice of this impact breccia from the almost 15 million year old impact crater that was the source of the Moldavites. This contains dark gray areas that are fragments of impact glass, in a matrix of light gray to white (mostly small) fragments of rock. This has epoxy on the back (not visible unless removed from the display box this is in) as I think that this was going to be used for making thin-sections at one point. Actually, I have two specimens to pick from. I am only listing one here but will have both in the “group photo” for this offering. The one that the measurements below are for is for the smaller (and thinner) one on the left in the photo.
4.5 gram rectangular slice in plastic box – 30mm x 20mm x 3mm - $10

TATAHOUINE, Tunisia: HED achondrite (Diogenite). Fell June 27, 1931. Tkw = 13.5+ kilograms.
Tatahouine is strange stuff. It has a really obvious bright green color with gray shock veins running through it. Here are a couple natural pieces in a small plastic display box that look very nice together. One piece (2.1 grams) is fairly flat/ angular and has a face that shows the shock veins very nicely. The other piece (1.8 grams) has a sculpted/ rounded edges shape and shows (on close inspection – a 10X lens works fine) quite a few tiny (around 1mm or under) patches of black fusion crust! A nice display pair.
2 pieces - 3.9 grams total in small display box - $60

ORGUEIL, France: Carbonaceous chondrite (CI1). Fell May 14, 1864. Tkw = 10.5+ kilograms.
Here are some of the “usual” (none of this material is easy to come by) small fragments and crumbs of this really strange material. They look like fragments of charcoal brickettes. I keep hoping that they will come out with some detailed results from landing on that comet awhile ago, as I suspect that those analysis results will likely show strong similarities to this material. Alas, such research work grinds slowly. It did take some years before analysis results from the DAWN mission (now orbiting Ceres) showed us that YES! Most H.E.D. meteorites do likely come from Vesta. Hopefully, we will soon have some information as to whether or not the CI1 stuff really is cometary or not. Anyway, these fragments and bits are in a capsule that is in a plastic display box.
.037 grams of fragments in a capsule in a display box - $90