[meteorite-list] Help with Strange Rock Part2
From: Matson, Robert <ROBERT.D.MATSON_at_meteoritecentral.com>
Date: Thu Apr 22 10:01:32 2004 Message-ID: <AF564D2B9D91D411B9FE00508BF1C86901B4E1A1_at_US-Torrance.mail.saic.com> This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C210B1.5F6B7990 Content-Type: text/plain; charset="iso-8859-1" Sounds like magnetite to me. If you file down a corner, the filings should be lead-gray, and the process of creating the filings will likely impart magnetism to them. Magnetite has a density greater than that of ordinary chondrites, and quite a bit less than iron, so if you can determine the specific gravity (mass in grams divided by volume in cubic centimeters), you'll probably find it is a match for magnetite (~5.2). --Rob -----Original Message----- From: MrX3010_at_aol.com [mailto:MrX3010@aol.com] Sent: Monday, June 10, 2002 11:58 AM To: meteorite-list_at_meteoritecentral.com Subject: [meteorite-list] Help with Strange Rock Part2 Ok I performed a tile test on my suspect rock and it showed a grayish silver streak on the tile so I don't think it's hematite. So this is what I have: 1. It's well worn and shows some signs of oxidation. 2. It's heavier than other rocks it's size. 3. A magnet is strongly drawn to it. 4. It seems to exhibit a weak magnetic field but I only noticed this after subjecting it to a strong magnet, in other words it might have resulted from that contact as it is very weak. I.e. (Only able to attract small pins and small paper clip) If anyone would like to see a picture of it let me know I'll try to get some good shots of it today. Next I will have a nickel test performed on it, in the meantime are there any other tests that I can do myself? Thanks, Ron ------_=_NextPart_001_01C210B1.5F6B7990 Content-Type: text/html; charset="iso-8859-1" <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META content="MSHTML 5.00.3315.2870" name=GENERATOR></HEAD> <BODY bgColor=#ffffff> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002>Sounds like magnetite to me. If you file down a corner, the filings should be</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002>lead-gray, and the process of creating the filings will likely impart magnetism</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002>to them. Magnetite has a density greater than that of ordinary chondrites, and</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002>quite a bit less than iron, so if you can determine the specific gravity (mass</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002>in grams divided by volume in cubic centimeters), you'll probably find it is</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002>a match for magnetite (~5.2). --Rob</SPAN></FONT></DIV> <DIV><FONT color=#0000ff face=Arial size=2><SPAN class=350540719-10062002></SPAN></FONT> </DIV> <DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> MrX3010_at_aol.com [mailto:MrX3010_at_aol.com]<BR><B>Sent:</B> Monday, June 10, 2002 11:58 AM<BR><B>To:</B> meteorite-list_at_meteoritecentral.com<BR><B>Subject:</B> [meteorite-list] Help with Strange Rock Part2<BR><BR></FONT></DIV><FONT face=arial,helvetica><FONT size=2 style="BACKGROUND-COLOR: #ffffff">Ok I performed a tile test on my suspect rock and it showed a grayish silver streak on the tile so I don't think it's hematite. So this is what I have: <BR>1. It's well worn and shows some signs of oxidation. <BR>2. It's heavier than other rocks it's size.<BR>3. A magnet is strongly drawn to it.<BR>4. It seems to exhibit a weak magnetic field but I only noticed this after subjecting it to a strong magnet, in other words it might have resulted from that contact as it is very weak. I.e. (Only able to attract small pins and small paper clip)<BR>If anyone would like to see a picture of it let me know I'll try to get some good shots of it today. <BR><BR>Next I will have a nickel test performed on it, in the meantime are there any other tests that I can do myself?<BR><BR>Thanks,<BR>Ron</FONT> </FONT></BODY></HTML> ------_=_NextPart_001_01C210B1.5F6B7990-- Received on Mon 10 Jun 2002 03:02:31 PM PDT |
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