Found black speckled stone, could this be a meteorite ?

Question

Prodominant colour is black / dark gray with white / off white angular inclusions of 1/2mm to 6mm in size. The ratio of white inclusions to black stone are about 40 : 60 approx. Stone is irregular in shape, size is 16cm x 12cm x 5cm approx. Weight 1.5Kg Is it possible that this stone is part of an old brocken meteorite.

Answer 1

Just some basic methods for you to determine if this is a meteorite...

1)  Does it seem heavy for its size?

2)  Is it solid inside, where broken?  A meteorite will not be porous like lava rock.

3)  If you grind off a small piece from it, do you see any shiny metal surface?  

4)  Is it magnetic?

5)  Is it black or brown on the outside?

If the answers to these questions are Yes, then what you have is probably a meteorite.

El Chistoso

Answer 2

Could be....it would be nice if you could send a phooto so we see it and have a better idea of how it looks.Could be...

Answer 3

sounds like could be a mafic rock with some felspars (the white/offwhite inclusions. - maybe some type of porphyry.

Really, without a photo it is too hard to say but it is very unlikely to be a meteorite, meteorites are mostly metallic, and have a characteristic surface texture due to partial melting as they come trough the atmosphere.

a cut and paste from some stuff I did earlier

People are fascinated by meteorites, but in most cases what they have found is not a meteorite, but terrestrial rock, or the result of human activity. Unless you have found a specimen in a location (such as the

Arctic) where it cannot possibly be terrestrial then apply extreme scepticism as to extraterrestrial origin.

Rocks commonly confused with meteorites by non-specialists include:

Haematite nodules, Foundry slag, Clinker, Marcasite nodules,

Magnetite, Human artefacts e.g. musket balls

Meteorites, some online resources:

http://epswww.unm.edu/iom/howto.htm

A good guide, includes how to test commonly mis-identified items

http://www.star-bits.com/ID.htm

Excellent guide to what is NOT a meteorite

http://www.filmright.net/Mediaright/Mete...

http://geologynet.com/esa/space/craters/...

Good.

Answer 4

highly unlikely,probably some igneous rock with feldspar or quartz crystals in it.

Answer 5

It may be, but it's more likely to be volcanic, possibly granite.  You should have posted a photo.  Why don't you take it to a natural history museum or somewhere where a professional geologist can examine it.

Good luck with finding out.