[meteorite-list] More petrographic questions.
From: MeteorHntr_at_aol.com <MeteorHntr_at_meteoritecentral.com>
Date: Thu Apr 22 09:41:08 2004 Message-ID: <c7.6f0c9cc.27b7215f_at_aol.com> --part1_c7.6f0c9cc.27b7215f_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/9/01 7:20:46 PM Central Standard Time, wendirob_at_laplaza.org writes: > Question: When, specifically, is this grade used, and what makes it a > Chondrite of petrologic grade 7 instead of an achondrite? > > Hello List, Can I reverse this question? I just acquired some of the new Tissemoumine Acapulcoite to resale. However, it is obvious that there are chondrules in this so-called "achondrite." Does anyone know if these "achondrites" should now be assigned a number too? I also noticed that the Happy Canyon was listed before as an EL6 but is now listed in the new Catalogue as just and EL. Blaine mentioned that it ought to be an EL7 since there are no chondurles in it. Is there too much resistance in the scientific community against the concepts of 7s to let it be reassigned to EL7? Steve Arnold www.meteoritebroker.com --part1_c7.6f0c9cc.27b7215f_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit <HTML><FONT FACE=arial,helvetica><FONT SIZE=2>In a message dated 2/9/01 7:20:46 PM Central Standard Time, <BR>wendirob_at_laplaza.org writes: <BR> <BR> <BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Question: When, specifically, is this grade used, and what makes it a <BR>Chondrite of petrologic grade 7 instead of an achondrite? <BR> <BR></BLOCKQUOTE> <BR> <BR>Hello List, <BR> <BR>Can I reverse this question? I just acquired some of the new Tissemoumine <BR>Acapulcoite to resale. However, it is obvious that there are chondrules in <BR>this so-called "achondrite." <BR> <BR>Does anyone know if these "achondrites" should now be assigned a number too? <BR> <BR>I also noticed that the Happy Canyon was listed before as an EL6 but is now <BR>listed in the new Catalogue as just and EL. Blaine mentioned that it ought <BR>to be an EL7 since there are no chondurles in it. Is there too much <BR>resistance in the scientific community against the concepts of 7s to let it <BR>be reassigned to EL7? <BR> <BR>Steve Arnold <BR>www.meteoritebroker.com <BR></FONT></HTML> --part1_c7.6f0c9cc.27b7215f_boundary-- Received on Sat 10 Feb 2001 05:57:35 PM PST |
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