Monday, May 28, 2007

Hardystonite

Ca2ZnSi2O7


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Many places have really beautiful fluorescent minerals including Mexico, Brazil, Romania, Austria, New Mexico USA, Arizona, Peru, Canada, Greenland, Sweden, Norway, Afghanistan, Pakistan, Belgium, Italy, China, and England.

But without any doubt the most famous and prolific location for fluorescent minerals in the entire world is in New Jersey. http://franklin-sterlinghill.com/

I have more than fifteen stones from this area in my collection, and they all are beautiful.
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Except for 3 that I got from Stuart Schneider, every New Jersey rock that I have came out of various different old European collections.
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One of the nicest ones is causing some waves in the fluorescent minerals community, and potentially perhaps even some rethinking of the conventional wisdom.
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I bought this particular stone from the Krantz collection in Bonn, Germany. I guess it was probably the third time I drove over to Bonn that they showed me this elegant beauty. It has several fluorescent materials including the zinc silicates hardystonite and willemite, and clinohedrite.
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What makes this particular stone extra special (besides the fact that it is really unbelievably beautiful) is that their tag tells them that it was collected during the time period from 1850 to 1880. http://paulgarland.blogspot.com/2006/01/adam-august-krantz.html
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Prior to now it was thought that the mine shaft which hardystonite came out of didn't start producing until the 1890s. Maybe 1899 http://franklin-sterlinghill.com/dunn/ch16/hardystonite.stm
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So this may be the beginning of a little historical investigation. How fun and exciting to be able to play a minor part in this!
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