Science Fair Project Encyclopedia
Hardystonite
Hardystonite is a rare purple fluorescent silicate mineral from the famous Franklin, New Jersey, USA zinc deposits. Like many of the famous Franklin fluorescent minerals, it is nondescript white in daylight and is not known in well formed crystals.
See Franklin Furnace for a discussion of these deposits. Hardystonite has a chemical composition of Ca2ZnSi2O7. It was frequently found with Willemite (fluoresces green) and Clinohedrite (fluoresceses orange).
References
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details


