[meteorite-list] The stones from the desert.

[Pict]

Put it this way. There is nothing in the texture that I can see that would
say it is definitely not terrestrial. Saying it is possibly
extraterrestrial would take someone with experience to spot something I
don't see. Looks pretty coarse grained and too differentiated (andesite?
sort of composition) to be anything common for a planetary. I'd be
interested to know if any meteoritic analogues to this sort of rock do
exist. Can't make a definite call myself. It is pretty however :-)

Regards,
John



On 03/03/2013 08:54, "A.V.Leonenko" <alphoto at rambler.ru> wrote:

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>     References;
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>    b=tUGwPmLU18iZQYvFDfQsolWoLyBI+xX2Lj1mD2hPoLEDQAg/rE6e4uyuFRI/eRpPY
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>     eN0/EhuA31FXDQ4diS4wqqaI05VOnVJjuVI2ptqqigZEPjRu8+y7hZo5tUV3NG20rG
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>     elOFRSiz/jSACQtuR4bVVvcbmg03Hkaj4ckiXfMg
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>Thanks for rating!
>
>So it is certainly not a meteorite?
>
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>Yours faithfully.
>
>Aleksandr.
>
> 
>
>Navoi сity.
>
>Uzbekistan.
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>
>
>> 3 марта 2013 г. 20:42:03 пользователь Pict (pict at pict.co.uk) написал:
>
>> 
>
>> Aleksandr,
>
>> 
>
>> Has the appearance of an igneous porphyry of some sort. Looks like the
>
>> larger light phenocrysts are feldspars (fairly pale colour so possibly
>
>> plagioclase?) and possibly the dark flecks are biotite. It appears
>>finely
>
>> veined with quartz or calcite so may have undergone some hydrothermal
>
>> alteration. I'm pretty much guessing. Igneous petrology is not my strong
>
>> point but I'm sure there are others around that might be able to deduce
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>> something more definitive from an image alone.
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>> 
>
>> Regards,
>
>> John
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>> 
>
>> On 03/03/2013 02:44, "A.V.Leonenko" <alphoto at rambler.ru> wrote:
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>> 
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>> >
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>> >Hi List!
>
>> >What can you say these stones?
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>> >Thank you!
>
>> >http://www.meteoritics.ru/forum/viewtopic.php?t=755
>
>> >Yours faithfully.
>
>> >Aleksandr.
>
>> > 
>
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>
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>>