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what year was orthoclase found

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asked Jan 4 by erikapesanez (140 points)

1 Answer

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Here is the mineral.net description. http://www.minerals.net/mineral/orthoclase.aspx

 

That should help, but feldspar is very common and I think you would have trouble finding a first description.
answered Jan 6 by Weasel (42,940 points)
 


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