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what year was orthoclase found

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asked Jan 4 by erikapesanez (120 points)

2 Answers

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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 (55,390 points)
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Orthoclase is a mineral that has been around since ancient times. More modern scientific study has broken down the various feldspars into othroclose, microcline, the plagioclase feldspars, etc., but feldspars have been around since ancient times and an attribution of their discovery would not be possible.

answered Apr 30 by hershel (51,320 points)