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It’s been a while since we’ve posted an update on the Detroit City Mine project at the Sweet Home deposit […]

The 2019 Denver Gem & Mineral Show is officially “on the books.” We hope everyone else enjoyed this year’s show […]

Tucson 2019 Show Report The 2019 Tucson Gem & Mineral Show brought some exciting changes to us here at the […]

Detroit City Project Update Hi All-    It’s spring here in the Rocky Mountains which means sunny skies, birds chirping, […]

Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA     While small compared to the great diamond-bearing […]

How to build a great mineral collection on a budget! By Phil Persson   Mineral collecting is one of the […]

The Detroit City Mine- another chapter in the story of Sweet Home Rhodochrosite         Since the difficult decision […]

The Top Ten Mineral Localities on Earth By Phil Persson   I have often had collectors ask me what localities […]

World’s Largest Float Copper Quincy Mine Claims, Houghton, Michigan, USA Collector’s Edge Minerals Inc., based in Golden, Colorado, USA and […]