April 2012

ON THE COVER
In this issue, Bob Jones recounts some of the opportunities he’s had to visit underground mines, including an emerald mine in Colombia. This 3-cm-high emerald is from the La Pita mine in the Boyacá District. (Jeff Scovil photo/Kyle Soller collection)

 

 

 

 

 

FEATURES

Collecting Minerals Underground
Part I: Giant selenites, optical calcite, and valuable emeralds
by Bob Jones

Munich’s International Agate Fair
Enjoy Germany’s gems and lapidary history
by Doug Moore

Rock & Gem Kids
Asterism and inclusions

Organic Ivory: White Gold
A significant material in ancient artifacts and modern artwork
by Bob Jones

Raytech Founder Harry Wain
He was a pioneer in fluorescent mineral collecting
by Mark Isaacs

Underground Mining Crossword
by Lynn Varon

The “American Woman” on Tour
New York City is the celebrated sculpture’s next stop
by Francisco Sotomayor

Amber: An Organic Fossil Gem
Jewelers and carvers favor colorful fossilized resin
by Kenneth H. Rohn

FIELD TRIP
Contact Chrysocolla
Collect the blue-green mineral in northern Nevada
by Steve Voynick

REGULAR COLUMNS

Picks & Pans
Museum exhibits, book reviews, hobby news

Lapidary of the Month
Vermont obsidian pendant
by John Crawford

Show Dates
Mark your calendar!

Shop Talk
Will Shaw's miniCutter
by William A. Kappele

Rock Science
The Secrets of Rock Varnish
by Steve Voynick

Off the Dop
Malaya Garnet: From Trash to Treasure
by Jim Perkins

Many Facets
Topaz & Tourmaline Round Brilliant
by Jim Perkins

On the Rocks
My 2012 Show Schedule
by Bob Jones

Field Notes
Reader Letters

Price: $7.99

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