• What is cut-off grade? An introduction to overlooked yet critical concept in mining and resource investing.

    A company covered by this site in the past has released a new resource. It was: 281,059 AuEq oz in the indicated category (1.21 Million tonnes (“Mt”) grading 7.23g/t AuEq at 3.5g/t AuEq cut-off)  319,675 AuEq oz in the inferred category (1.64 M...

  • Gold Commodity Overview

    Aurum. Au. Geld. Gold. The ransom of kings, the symbol of royalty. The economic motor of empires since antiquity and the killer of civilizations.  For 5000 years it has held an iron grip on the collective imagination of the western world and shows no sign ...

  • Great Dike of Zimbabwe taken from the International Space Station (NASA).

    Geology Fundamentals – Veins, Dikes and Sills 

    Introduction We often find references to veins, dikes (or dykes) and sills in descriptions of mining projects or in news releases. They may host economic minerals, relate to important project features or may just be mentioned in passing. In this article we...

  • Magmatic Arc Hydrothermal Systems: Part 1 An Introduction

    Introduction A magmatic arc hydrothermal system is a class of hydrothermal systems that interlink major styles of precious metal and base metal deposits. These deposits include well known types like epithermal gold-silver, (low sulfidation and high sulfida...

  • Great Deposits – The Comstock Lode

    Introduction Flying over Nevada on a clear day is one of the great joys of being an economic geologist. The Basin and Range country has abundant structural features, intrusions, deformed bedding and pits and plenty to keep one occupied. Every so often the ...

Geology for Investors. Make Sense of Mining Company Investments

Exclusive evaluations and opinion of junior mining company projects, important and emerging mining and exploration districts. We provide reviews of current exploration and mining projects as well as compelling news from the world of geology and exploration. Our knowledge base of articles on exploration geology and geological methods is written with the non-professional in mind. Learn the basics of geological exploration, drilling, key commodities and mining. Read about mineral deposit types and important discoveries.

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