[meteorite-list] Ancient Scale Weight 27.04g (mesosiderite????)

From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Thu, 27 Sep 2012 11:50:01 -0500
Message-ID: <1297E569F132458D8D401F11BADE42DF_at_ATARIENGINE2>

William, List,

First, you need to determine its density, which is
mass divided by volume. Mass (or weight) is easy.
weigh it on a gram scale.

To determine volume, seal the object in a plastic
bag from which you have squeezed out any residual
air. Immerse it in a volumetric graduate (marked
off in cubic centimeters) partly full of water and
obverse the difference (in cc's) in volume.

Since it looks like it's seen lots of water already,
I'd just drop the bare object into the water and
write down the change in volume. More accurate.

Divide the mass in grams by the volume in cc's
to get the density. Look it up in this table:
http://www.meteorites.com.au/odds&ends/density.html


Sterling K. Webb
---------------------------------------------------------------------
----- Original Message -----
From: "William Feek" <lunarmajor at hotmail.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Thursday, September 27, 2012 11:23 AM
Subject: [meteorite-list] Ancient Scale Weight 27.04g (mesosiderite????)


>
> Hi All,
> I have an artifact which I'd like to find out if whether or not it's
> made from a meteorite.
> It has the same characteristics as the mesosiderites in my collection,
> those being NWA 2932 and Toufassour.
> A magnet pulls equally as hard as it does on my whole stones, and
> looking at it under a loupe it looks to be stony.
> But I could be wrong about all of this, wouldn't be the first time
> that's for sure.
> The problem is I don't have the nerve to damage it such as by cutting
> and polishing.
> So I ask, is there a non invasive way of making a determination?
> I want to let anyone interested get a look at it and ask for their
> comments, advice, or opinions.
> Check it out and let me know what you think.
> Here's a link to some images:
> https://skydrive.live.com/?cid=c1261b1849deb6dc&id=C1261B1849DEB6DC%21188#cid=C1261B1849DEB6DC&id=C1261B1849DEB6DC%21174
> Be sure to click on "View original" to see the highest resolution and
> get the best look.
> Thanks, William
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Received on Thu 27 Sep 2012 12:50:01 PM PDT