Hi Melanie and thanks for the enthusiasm you add to the list ...
Here's a high to low sorting of the ordinary chondrites, for over
32,000 meteorites:
22.0% L6 (most common)
19.9% H5
12.9% L5
12.3% H4
11.5% H6
7.8% LL5
4.2% LL6
3.3% L4
2.2% H3
2.0% L3
0.8% LL4
0.8% LL3
0.1% L7
0.1% LL7
0.03%
I agree with Doug... the rarest and most valuable type of OC from a
scientific perspective is petrologic type 3.00-3.01, from any of the
chemical groups. Only one is known... Semarkona. If we take a more
expansive definition of ordinary chondrite than most of my rather
conservative
Hi again list.I am really sorry for this,but I absolutely forgot to list this
piece forsale.It is a 164 gram full slice of FAUCETT,MISSOURI.This was one of
the first 10 meteorites I ever bought from bob haag when I started collecting
meteorites.One side is polished,the other side is not.It has
Indeed,
it's for the first time, that I read that R-chondrites are included in the
OC-group. If so, why exactly them and not the K-chondrites, the Carbonaceous
from grade 3-6, the ungrouped and the enstatite chondrites too?
valuable type of OC from a
scientific perspective is petrologic type
Hi List:
Tomorrow I have my Ebay auctions ending, including a piece of
Ensisheim from the BoubeeCarion Collection that is priced wy
below retail. Also have a look at the Tenham slice that has a
chondrule offset by a shock vein.
At 09:27 AM 12/16/2009, Chladnis Heirs wrote:
Indeed,
it's for the first time, that I read that R-chondrites are included in the
OC-group. If so, why exactly them and not the K-chondrites, the Carbonaceous
from grade 3-6, the ungrouped and the enstatite chondrites too?
I didn't say they ARE
Get ready for NWA 5717.
Initially anomalous, the classification had to be changed to
ungrouped as it was too difficult to determine what it was anomalous
to. 3.05 subtype. More to follow
On Dec 16, 2009, at 10:26 AM, Jeff Grossman wrote:
At 09:27 AM 12/16/2009, Chladnis
Since Darryl brought up his incredible LL3.05, I have to ask how does/can one
classify the metamorphic grade to the to the tenths or now the hundredths of a
decimal? I have had some tell me this is subjective and others say you need
specialized equipment. Please, any researchers, explain.
The hundredths place is only defined for type 3s
that are lower than type 3.2. This is because
there is a lot of variation in metamorphic
effects in the low end of the range, too much to
cram into just types 3.0 and 3.1. Initially, I
define 4 new classes: 3.00, 3.05, 3.10 and 3.15
p.s.: I can determine the 3.00-3.05-3.10-3.15
subtypes reasonably well on most ordinary
chondrites using a thin section and a petrographic microscope.
jeff
The hundredths place is only defined for type 3s
that are lower than type 3.2. This is because
there is a lot of variation in
Martin wrote:
Where one has to say, that it's maybe too early to say that, Because
the classification with decimal places, (even with two!), is a
relatively new occurrence...
Dear Martin,
Your comment sounds to me like the hungry man's dubitable evaluations
of the quality of the the world's
I was hoping someone knows where I can get these low-profile specimen card
holders on the cheap. These seem expensive:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=350280076456
If you could let me know off-list, that would be great!
---
Mike Bandli
Historic
The PDF file of a PhD. dissertation about Chicxulub impact
ejecta can be found on the Electronci Theses and Dissertations
web page of the Department of Geosciences, University of
Arizona at:
http://www.geo.arizona.edu/Antevs/Theses/index.html
This Department of Geosciences, University of
Dear List Members,
In light of today's discussion of pristine chondrites, I would like to take
this opportunity to announce Officially-named NWA 4530, an Anomalous CO3.05
Polymict Carbonaceous Chondrite. It is just one of a handful of this
intensely rare meteorite type.
Here is a quote from
Hello all,
I know that many of you have already purchased a slice or two of this
material. I have heard back fro ma few of you on how much you like it and how
much it looks like a meteorite. I posted a few of the comments below.
I just want to announce that I am having a sale for the next
Hi Doug,
never I'd dare so. It was only an observation.
In former times there weren't 3.05 etc and as you know, we frequently give
type-3s in classification. Some classifier make decimal places, some not or
not yet.
Neither I had said something about the rareness.
And I fully agree about the
Dear List Members,
I forgot to include an image of NWA 4530. Thank you to all who pointed this
out to me!
NWA 4530 CO3.05 Anomalous Polymict Carbonaceous Chondrite 24.7g Main Mass
Photo:
http://www.lunarrock.com/nwa4530/nwa4530mainmass.jpg
A couple people asked how I have the patience to
Hello List,
In keeping with the current discussion on uncommon common chondrites,
I would like to announce that I have my first official classification
underway. The paperwork has been submitted to the MS for a NWA
number.
The meteorite in question is the same small stone that I suspected was
a
Hi all -
These really had me fooled as well, and given my stroke damage hearing your
comments on them makes me feel a whole lot better.
Other baffling aspects of these:
1) The pieces looked like impact shrapnel
2) They were found on the plains of Illinois, with no similar rocks anywhere
Without a doubt, that is the most interesting and unique carbanaceous chondrite
I have seen so far. Thank you for posting the photo of NWA 4530.
Merry Chritmas, Happy Holidays and Propserous New Year,
Count Deiro
-Original Message-
From: Greg Hupe gmh...@htn.net
Sent: Dec 16, 2009
Hello Everyone!
Happy Holidays to all. Also, thanks to all my friends and customers
who supported me through this last year, as well as all the years
before! This is my big auction and sale for the year, please enjoy and
the are great deals to be had by all. Enjoy and Good Luck bidding!
Hello List Members,
just to inform you that there's one day left on a wonderful 982 grams
Tafassasset :
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItemitem=110467644948
It's a buy it now auction so be quick. It's a marvelous meteorite, a rarity.
It's sold with its analysis by french laboratory
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