[meteorite-list] Strange surface feature

From: Göran Axelsson <axelsson_at_meteoritecentral.com>
Date: Thu, 26 Mar 2009 17:54:02 +0100
Message-ID: <49CBB32A.7050107_at_acc.umu.se>

Are you sure it is a meteorite? It could be a hematite concretion or
some other earth mineral. The fact that it is heavier than an ordinary
stone but doesn't affect the compass needle sounds like some hematite
iron ore. Hematite could develop mica-like structures.

G?ran

gian gallo wrote:
>
>> Hola Carl. We are not saying it is mica....it is the arrangement the silvery specks has, that seems to be a mica-like feature. We think that its FC , has weathered away almost completely. It is the only one of the three stones, that can not move our compass needle....and we have not sticked yet, a neo magnet to it. Although the three stones are nearly of the same size, this one is the heaviest. In the below picture, the stone is the one at the right side :
>>
>> http://inlinethumb04.webshots.com/43907/2096345270100862759S600x600Q85.jpg
>>
>> Hasta la vista,
>>
>> larense
>> ------------------------------------------------------------------
>>
>>
>>> Date: Mon, 23 Mar 2009 18:52:08 -0700
>>> From: cdtucson at cox.net
>>> To: gianpgg at hotmail.com
>>> Subject: Re: [meteorite-list] Strange surface feature
>>>
>>> I would like to see the inside. Are you going to slice it? It is very difficult to see anything that looks like mica in photo. Does it have a fusion crust? If you do see mica it may not be a meteorite. Carl
>>>
>>> ---- gian gallo wrote:
>>>
>>>> Hola to all. Today we recieved three freebies from Steve Arnold ( Chicago ). Thanks you some much, Steve.....and...in one of them, we have found some strange feature on its surface......silvery specks that shines as if it were a mica stone. This feature is only seen if we have the right angle of light to see it. ? Has anyone here seen this before. Any help is welcome. The little stone weights 13.1 grams.
>>>>
>>>> Below, four pictures....of two diferent areas...that shows this strange feature, in direct and reflected light, pictures taken with a stereo - lupe :
>>>>
>>>> First area :
>>>>
>>>> http://inlinethumb56.webshots.com/42871/2739672990100862759S600x600Q85.jpg
>>>> http://inlinethumb57.webshots.com/42168/2856801200100862759S600x600Q85.jpg
>>>>
>>>> Second area :
>>>>
>>>> http://inlinethumb25.webshots.com/42392/2290974480100862759S600x600Q85.jpg
>>>> http://inlinethumb20.webshots.com/43667/2053070070100862759S600x600Q85.jpg
>>>>
>>>> Hasta la vista,
>>>>
>>>> larense
>>>>
>>>>
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Received on Thu 26 Mar 2009 12:54:02 PM PDT