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extraLapis English No. 9: Fluorite
The Collectors Choice




Fluorite
The Collector´s Choice 

 

extraLAPIS English No. 9: Fluorite - The Collector´s Choice 

 

Fluorite is....

 clear and colorless in its pure form, but defects and impurities endow it with array of colors, in both fluorescent and white light, a number of which can occur in a single crystal. Those famous color zones are one of the many features that have drawn people to collect fluorite, giving it....

 a rich history that spans cultures and millennia. Colorful fluorite has been carved into all forms of vases, cups, utensils, and decorator items that have historically commanded astronomical prices. The few fluorite artifacts preserved from days of old provide a glimpse into the lives of the ancients and open questions about their sources for fluorite as well as what was known of the mineral´s properties, as fluorite is....

an important ore. Its use as a flux for making steel has been long known, and its optical properties make it an important component in high-end lens systems. Fluorite is also man´s most significant source for fluorine, which enjoys innumerable industrial applications. The commercial demand means fluorite is....

readily mined from places across the globe. Fluorite is generally deposited by hydrothermal fluids, which can traverse many rock types. The mineral is thus found in a variety of geologic environments and the crystals reflect that variety. From simple cubes to incredibly complex crystals, colorful fluorite occurs in association with flashy species such as galena, quartz, calcite, sphalerite, and rhodochrosite. Rich in color, form, and association, fluorite is....

The Collector´s Choice. 


Contents

Fluorite: from Ancient Treasures to Modern Labs and Collections
by Gloria Staebler, Joan Deville, Earl Verbeek, R. Peter Richards and Fabien Cesbron

Fluorite Luminescence
by Earl Verbeek

Fluorite Balls from Hell
by Erich Offermann & R. Peter Richards

colors of EUROPE

Old Classics and New Finds: Fluorite from the United Kingdom
by Ian Jonas

Fluorite from Spain: Every Color Under the Sun
by Guiomar & Miguel Calvo

France
by Christophe Lucas 

Switzerland
by Hans Anton Stalder

 
best of the AMERICAS

Elmwood-Gordonsville-Cumberland Mine Complex Of Eastern Tennessee
by Arvid Pasto & Brian Stefanec

The Great Southern Illinois Fluorspar Deposits
by Ross Lillie

Connecticut
by John Pawloski

IridescentFluorite from Ohio´s Findlay Arch District
byJason McDonald

Canada
by Mark Mauthner & Frank Melanson

Mexico: Hundreds of Localities, Great Associations
by Matthias Jurgeit & Peter Megaw

Fluorite from Peru
by Rock Currier

a taste of ASIA 

Russia and the former Soviet Union
by Ray Grant & Dmitri Belakovski

China
by Guanghua Liu

Pakistan
by Dudley Blauwet

Fluorite from Japan
by Yoshiro Komuro

there is always something new out of AFRICA 

Fluorite from Southern Africa
by Bruce Cairncross

Morocco´s El Hammam: Six Decades of Fluorspar Mining
by Pierre Clavel & Günther Neumeier

Faceting Fluorite
by Michael Gray

Fluid Inclusions in Fluorite: Brines, Gases, Oils, and More
by Albert Gilg

Cleaning Fluorite
by Rudolf Duthaler

References

Author´s Addresses

 

 

extraLAPIS English No. 9: Fluorite - The Collector´s Choice
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