Looking Back

June 2008 by Staff

Greenstone Belts in Minnesota

August 2005
Greenstone is a dark greenish-black basaltic rock which, along with chloritized schist, forms belts up to 50 miles wide in northern Minnesota, in rocks of Late Archean age. Most belts are 2.6 to 2.9 billion years old.

Picks & Pans: Rattlesnakes in a Gold Camp

February 2004
Leon was leading the way as we hiked the trail out of North Canyon. Without any warning Leon leaped into the air. He had just spotted a big rattlesnake lying in the grass beside the trail.

Legislative And Regulatory Update

October 2011
• Good news on EPA regs
• California rewards key appointment to dredging foe
• Republicans seek to block creation of National Monuments
• Zimbabwe threatens seizure of mining rights

Ask the Experts: gold per ton; improving assay method

May 2012
Q: How much gold do I have per ton and how can I improve my assay method?

Our Readers Say

May 2016

From Curiosity to Mine Owner - Pt II

October 2015
When we last heard from Ernie, he was still in Honduras and we were anxiously waiting to hear how the set up and training went at the mine. It got a bit complicated after that.

Fire Assay Finish by Silver Nitrate Fusion for PGMs

July 2021

…my intent is to distribute this information in layman’s language so that even the “backyard/shade tree/mom & pop” fire assayers can benefit.

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