Image: S4010098rev
Spec. A
BACKGROUND(June 2005):
2lbs, 10oz.(1.19318 kg) in air
2 lbs. 5oz.(1.05114 kg) in H20*
(these are primitive measurements - antique spring postal scale and a piece of string)
*specimen displaces
160 ml H20 = 7oz (0.19886 kg)
(I got the displacement by capturing runoff water in a graduated cylinder)
Calculated weight diff (in oz) is 5-7 oz, so specific gravity would be 8.4 - 6.0 (ave. 7.2)
It is ferromagnetic.
My basic guide to rocks and minerals indicates Meteorites: 7.5 spec. gravity; Magnetite: 5.2 spec. gravity.
I have 2 other 'iron' specimens labelled Magnetite and they are magnetic, but clearly different in appearance (black crystalline texture).
July 7th: [I now have expert opinion: the weight of the specimen and its displaced H2O provides the following - 1193gms/160cm3 = 7.5 Specific Gravity AND 'the real test for iron meteorites is the presence of a few percent Ni in the iron alloy' - a Scanning Electron Microscope can provide that information.} Thanks. Paul!
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