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Shortly after the 2020 Tucson Gem and Mineral Show, the Collector’s Edge acquired an impressive new batch of Amethyst quartz […]

Detroit City Portal at the Sweet Home Mine: Spring 2020 Update            Spring is in the air here in […]

Collector’s Edge Minerals, Inc. recognizes and thanks the Mineralogical Record for permission to use portions or all of their original […]

OTHER MINERALS: The Sweet Home mine rhodochrosite crystals have overshadowed reports of the other species from the mine (Caplan, 1936).  […]

INTRODUCTION: Benitoite is one of the world’s rarest gemstones and possesses many uni que qualities compared to other gems. It […]

Collector’s Edge Minerals, Inc. recognizes and thanks the Mineralogical Record for permission to use portions or all of their original […]

INTRODUCTION:   In June, 1997, a beautiful pocket of blue-green microcline (v. amazonite) specimens was discovered in the classic Lake […]

Amazonite:  K(AlSi3O8) Amazonite is a green microcline feldspar, with a hardness on the Moh’s scale of 6-6-1/2.  It forms in […]

Collector’s Edge Minerals, Inc. recognizes and thanks Rocks & Minerals for permission to use portions or all of their original […]

Continuation from Page 1 Barite, a complex parallel-growth crystal with multiple terminations, from a small isolated pocket; 7 by 5 […]