What about fluorite?
The book "Valzergues fluorite mine" E. Guillou-Gotkovsky Comments How to get the book
Fluorite mining
Other mines
Foreign mines
Gilles Emringer, collector
MultiAxes
Spathfluorminerals
Fluorite collections
Building a collection
Falses and diverses
"Members" section
Acknowledgements
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News / Links
Contacts
Industry
Web site synopsis
E.
Guillou-GotkovskyCommentsHow
to get the bookE.
Guillou-GotkovskyCommentsHow
to get the book