History & Geology
The Tombstone Silver-Lead District, Arizona
April 2016 by W. Dan Hausel

Mineralized Faults and Contacts in the Search for Gold

The Seven Troughs Mining District

WSGS Releases New Geologic Maps
The Wyoming State Geological Survey announced ten new geologic maps have been completed and are now available.
Detecting for Gold in Australia—The Kimberley Trip

Why So Much Gold in Nevada?
Nevada produces about 75% of all the gold mined in the US. This means that all the other 49 states combined only produce 25%, and this includes California, Alaska and Arizona.
"Gold Rush: Alaska" in the Porcupine Mining District

The Forms of Crystalline Gold
The largest and most perfect single gold crystals are nearly always in the form of octahedra. These large octahedral crystals often possess deeply recessed faces.
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