The Medina Pegmatite Field

The Medina pegmatites in Minas Gerais, Brazil, are famous for world-class aquamarine crystals.
Halite from the Solno Salt Mine

Polish halite from the Solno Mine at Ironclaw, Poland.
New York Times – Chemical Compounds that Incite Oohs and Aahs

Minerals are attracting collectors looking for a more affordable market.
Historical Provenance

Provenance is a record of a specimen’s authenticity and offers potential tales of intrigue.
The Definitive Guerrero Amethyst

Quartz has been loved since antiquity, and amethyst, the violet to purple variety of quartz, is its most prized variation.
Objects of Obsession

For some, collecting minerals is a hobby; for others, it’s a passion that borders on obsession.
The Cave of Giants in Wuling, China

Mention the word, “stibnite” in any room of collectors and they’re bound to conjure up images of tall Wuling clusters.
The King of Kashmir

This is the story of the King of Kashmir—certainly the world’s greatest aquamarine.
Worth 2007 – Rock Solid

In the depths of the bear market, Marc Weill began hunting for alternate investments.
Crystals & the Fine Arts

How natural crystals and mineral specimens have transcended their class and joined the ranks of the finest artworks celebrated in history.