Crushing, Grinding and Pulverizing

May 2017 by Alex Dolbeare

There are many different ways to get the gold out. We will take a look a few examples of crushing and grinding, and potentially which ores they may be best suited for.

Prospecting for Copper

May 2004
This article deals with copper exploration, but it is relevant to exploration for other minerals. I will use the geology of the Copper Creek area in Pinal County, Arizona, as an example.

Slug Gulch

June 2008
Slug Gulch. What a name. It originates back into the 1860s or so. The question is whether it was referring to the snail-like creature or to large pieces of gold. The name alone is enough for any prospector to consider checking the area out.

Legislation Would Require Palladium Coin

June 2008
Pending legislation requiring the government to mint a $20 coin with palladium mined domestically would put Montana front and center.

Melman on Gold & Silver

February 2008
What a start to the year! In just the first two weeks of 2008, we saw the price of gold explode to the highest levels in history at $900 per ounce, Crude Oil reach $100 per barrel, some of the world’s largest financial institutions collapse in market value, unrest spread in Pakistan following the assassination of Benazir Bhutto, the worst jobs report from the Department of Labor in at least two years and the continued erosion of residential real estate values.

Police Urge Author to End Treasure Hunt

July 2017

The plea from State Police Chief Pete Kassetas follows what authorities believe is the latest death related to the effort to uncover Forrest Fenn’s treasure.

A Father and Son Prospecting Adventure

May 2013
As I write this, I am still on a rush from taking my 9-year-old son, Jeffrey, prospecting for the first time this past weekend. It’s not that he hasn’t been along on numerous outings before: this is the first time that just the two of us went out for a day of drywashing and detecting under the desert sun.

The South Pass Gold Placers, Western Wyoming

April 2001
In the 1980s, I spent 5 summers living in a tent in order to map the 450 mi2 South Pass granite-greenstone belt and many of its historic mines. While mapping, I was quite impressed by the general lack of development of lode gold deposits.

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