February 2007

February 2007 Vol.37 Num.2
Table of Contents (pdf)

Features

The Minerals of Earth's Crust

Part II: Sedimentary rocks are great collecting sites

by Bob Jones

The Frugal Collector: The Silicates

Part VI: Tanzanite, chrysoprase, and gem silica

by Bob Jones

Roadside Panning Sites in New Mexico

Part II: Rio Arriba, Sandoval, San Juan, San Miguel, Sierra, Socorro, Taos, and Valencia counties

by David and Clois Walker

Talc

A different kind of rock

by Chloe R. Young

Rock & Gem Kids

Crystal models and pyromorphite

by Steve Decker

Gold in the 21st Century

How mining and the market are changing

by Steve Voynick

Perspective on Platinum

Is it becoming too precious for jewelry?

by Steve Voynick

Silver Treasures of Kongsberg

Unique specimens from famous Norwegian mines

by Kiera Tara O'Brien

Field Trips

Rockhounding Bountiful Bancroft

A collectible variety in a small area

by Mike Streeter

Cold-Water Agates

Exploring gravel bars along the Zumbro River

by Kenneth H. Rohn

Collectibles in Sediments

Cone-in-cone structures near Erie, Pennsylvania

by Robert Beard

 

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