Magazine

History & Geology

The Many Facets of Iron

March 2013 by Bill Rich

I’ve been fascinated by iron minerals for many years. So let’s take a look at this very interesting and colorful element.

Online access required. Please LOGIN HERE.

Add a Comment

Additional articles that might interest you...

Ask the Experts: VMS ore

August 2012
Q: Are there any mills that handle VMS ore?

Gold Deposits of the Ivory Coast

April 2014
Ivory Coast has considerable gold reserves, and this nation has the largest area of greenstone belts prospective for gold in the continent.

Indicator Minerals for Gold & Silver

April 2011

In this article, we’re going to take a look at the minerals that contain gold and silver, and how you as a prospector can identify them in the field.

February 2013
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.

Exploration Rush at Tonopah, Nevada

November 2020

A few months later, a young, greenhorn lawyer agreed to pay to have it assayed, and the quartz turned out to be rich in both gold and silver.

Downieville: Another Gold Rush Favorite

October 2021

I didn’t know what to expect because the area we were working was not close to the water, but we were pleasantly surprised when we began to pan out some nice flakes and a few pickers.

Critical Minerals: Tungsten

July 2017

Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.