Sometimes cordierite can be blueish in plane light, which matches the
low birefringence in the images, and the abundance of rounded
inclusions.
My favorite blue mineral is dumortierite.
Allan
Allan Treiman
Lunar and Planetary Institute
3600 Bay Area Boulevard
Houston TX 77058 USA
281-486-2117
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On Nov 7, 2007, at 7:59 AM, Eric J Essene 1 wrote:
> Dr. Rao,
> It appears that the photo of the blue mineral was taken under
> crossed polars. What does it look like under uncrossed polars, and
> what is its EDS pattern?
> eric
>
>
> On Nov 6, 2007, at 11:55 PM, Dharma Rao wrote:
>
>>
>> Subject: mineral id
>>
>> Seasons Greetings !
>>
>> I am working on some interesting granulites from Eastern Ghats. I
>> recently encountered a new mineral. Pl find attached two
>> photomicrographs of the mineral
>>
>> Anyone with an idea of what this pitted blue mineral with rounded
>> inclusions can be.
>>
>> Regards
>>
>> Dr.C.V.Dharma Rao
>>
>>
>>
>>
>>
>>
>>
>> Check out some new online services at Windows Live Ideas—so new
>> they haven’t even been officially released yet. Try it!
>> <New Mineral.doc>
>
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