Ok, so -

What is the rock type, terrestrial, meteorite?
Any idea of the petrologic provenance?
What are the other co-existing minerals/phases?
The section is a tad thick, thus the birefringence is misleading.
 Do some homework here--

Ted


On 4/15/09 1:18 PM, "cdtuc...@cox.net" <cdtuc...@cox.net> wrote:

> John Kashuba was kind enough to make this video. It is of a mineral changing
> from crossed polars to pain light. Can someone please tell me what the mineral
> is Thank you.
> 
> http://www.youtube.com/watch?v=vaowrlJFai4
> 
> 
> Carl Esparza
> IMCA 5829
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