Large Scale Mining
Polymetallic Skarn Deposits
July 2020 by Dean Delahaut
Polymetallic skarn deposits are an interesting class of deposits that can contain a number of different types of metals.
The Snapshot

A Third Generation Small-Scale Hardrock Revival
One of his friends had 700 feet of small-gauge mine track and a hundred-year-old track bender laying out in his back 40; plus he also wanted to join the team. Perfect.
Iron Ores and Iron Mining
For more than 40 years, iron ore prices have been decided by private negotiations conducted between the largest of the iron miners and the largest steel producers. These two sides dominate both the spot and contract iron ore markets.
The Basics of Crushing and Milling Operations

Lithium Fuels Hopes Around Salton Sea
The lake is at the southern tip of the San Andreas Fault, which has shifting tectonic plates that bring molten material closer to Earth’s surface. The only other part of the US known to have more geothermal brine available is on the fault’s other end in Northern California.
Designing and Evaluating Placer Gold Recovery Plants

Silver Bull Resources Sees Bright Future for Silver & Zinc

Subscription Required:
The Bawl Mill
• Ask The Experts - Can GPR be used for lode prospecting?
• Ask The Experts - How do I extract gold from pyrite?
• Ask The Experts - Should I dig faint sounds with no indicator bars while detecting?
• Ask The Experts - Should the detector sound on iron and nickel in a gold area?
• Hard Rock 101: Micro Blasting
• Sluicing and Detecting Downstream
• Tips and Tricks
• Gold Prospecting for Better or Worse: Does Caliche Grow?
• 10 Keys to Prospecting Like A Pro
• Practical Advice for Milling Hard Rock Ores
• Speed Prospecting for Hard Rock Gold
• Forrest Fenn Treasure Chest Finally Found?
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices