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On The Rocks: Periodic Table of Chemical Elements

By Bob Jones In December 2017, at the United Nations General Assembly, 72nd session, in New York City, the membership proclaimed the year 2019 to...
Wulfenite display at the Tucson Show

Wulfenite: Arizona Style – Beautiful, Fragile & Colorful [Part II]

By Bob Jones In part one of this series (enjoy Part I) we described wulfenite from several Arizona mines including the famous town of Tombstone,...
View of the Kremlin

Russian Lapidary: Covering the World With Gorgeous Stones

Editor's Note: This is the first in a two-part series. By Bob Jones I always wanted to go to Russia to see the Hermitage, the Fersman...
Kartchner Caverns stalactites

Arizona Underground: Mine Tours, Museums, and Caves

Story and Photos by Bob Jones With winter set to arrive soon, tens of thousands of folks will head into the great Southwest. Quartzsite becomes...
Zinc mine products shine in ultraviolet

Rainbow Rocks: Collectability of Fluorescent Minerals

By Bob Jones I first became interested in fluorescent minerals in the 1930s, when the property of fluorescence was considered more of a novelty than...
Smoky Quartz

Why Minerals Have Color

By Bob Jones There are two reasons I enjoy attending mineral symposia. One is that the social events and activities that surround such events give...
Farncomb gold-Denver Museum

On the Rocks: Must-See Denver Show

By Bob Jones It seems like every time I go to Denver for the shows in September, something new is happening. What started out as...
Copper oxide zoned quartz and schist

Seeing Peak Production At a Steep Price

Editor's Note: This is the conclusion of a two-part series about the Bristol Mine in Bristol, Connecticut. Enjoy the first article in this series>>> Story...
Sharp Chalcopyrite crystals

Chalcocite Crystals of Bristol Copper Mines

Editor's Note: This is the first in a two-part series about the copper mines of Bristol, Connecticut. Story by Bob Jones Although many mineral collectors...

Exploring Mexico’s New Classics: Adamite and Legrandite

Story and Photos by Bob Jones Serious collectors can name most of the classic minerals. They would include silver from Kongs­berg, Norway; proustite from Chañarcillo,...