February 2014

The Lyda Hill Gems and Minerals Hall at the Perot Musem of Nature and Science (Dallas) features specimens from world-class collections. This beryl (var. aquamarine) on albite from Gilgit District, Pakistan, is in the collection of Marc Weill. (Jeff Scovil photo)







The Perot Museum of Nature and Science
Part II: Spotlight on the Lyda Hill Gems and Minerals Hall
by Bob Jones

Black Bay Opal
A new source to watch
by James A. Miller

Rock & Gem Kids
Wulfenite, Nevada state rocks, crystal habits

Diamonds: Deep-Earth Survivors
These gems are tough and beautiful
by Bob Jones

Arizona’s Petrified Forest Fossils
Chalcedony Park is a “Triassic Park”
by Steve Voynick

Vincalis the Agitator
Nested triangles in sunstone
by Arya Akhavan


Sandia Mountains Orbicular Granite
Persistence pays off at this New Mexico site
by Robert Beard


Field Notes
Reader Letters

Lapidary of the Month
Straw-cast nephrite pendant
by Richard M. Meszler

Show Dates
Mark Your Calendar!

Shop Talk
Stone and Wood
by William A. Kappele

Rock Science
Ice, Hydrous Minerals, and Hydrogen Bonding
by Steve Voynick

What to Cut
Malibu Marcasite
by Scott Empey

Picks & Pans
Museum exhibits, book reviews, hobby news

On the Rocks
Tucson 2014: A Diamond Lover's Dream
by Bob Jones

Parting Shot
Galena and Quartz
John Schneider photo


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