Tag: 0818
Adamite & Legrandite from Mapimi
Adamite and legrandite from Mexico can now be added to most lists of classic minerals joining the ranks of silver from Kongsberg, Norway; proustite...
Why Minerals Have Color
Scientists have discovered several reasons why minerals have color. Some list as many as 13 different causes of color, but the great majority fall...
What to Cut: Gary Green Jasper
Gary Green jasper, also known as Larsonite, is a petrified bogwood found in the McDermott area on the Nevada/Oregon border. Its bright colors and...
Moroccan Aragonite: Specimens by the Millions
Story and Photos by Bob Farrar
Mention Morocco to a rockhound, and it is likely to bring to mind visions of exotic, rare, and beautiful...
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...
Rock Science: Lithium — The Battery Metal
By Steve Voynick
The lithium-bearing minerals most familiar to collectors are spodumene and trilithionite (formerly “lepidolite”). The kunzite variety of spodumene, or lithium aluminum silicate,...
Rock Shops of Distinction: Mining Supplies & Rock Shop
Editor's Note: This is the first of a two-part 'Rock Shops of Distinction' feature.
Story and Photos by Jim Brace-Thompson
Riddle me this: When is a...
Black Rock Desert Geode Cab
By Bob Rush • Bench Tips column
A few weeks ago, when I was cutting slabs off the face of a Black Rock Desert geode,...
