Colorado Gem & Mineral Co. - Rocks for the Rest of Us

Minas Gerais, Brazil. 2

Aquamarine ( Beryl ) - trillion / cushion

- Aquamarine ( Beryl ) - trillion / cushion

Brilliant triangle cushion Aquamarine with excellent color and classic step cut.  microscopic i..

$280.00
Columbite / Niobite

- Columbite / Niobite

Very sharp Columbite / Niobite crystal, a rare earth oxide mined for Columbium and Tantalum.  Excell..

$395.00
Columbite / Niobite

- Columbite / Niobite

Complete crystal of Columbite / Niobite, the main source for two of the rare earths, Niobium  and Ta..

$245.00
Rubellite Tourmaline - octagon

- Rubellite Tourmaline - octagon

Barion cut Rubellite with excellent brilliance and color. Minor veils and inclusions.  4.27 car..

$598.00
Tourmaline ( Elbaite ) in Quartz

- Tourmaline ( Elbaite ) in Quartz

Gemmy dark green Tourmalines in and attached to a brilliant Quartz crystal.  Main crystal is te..

$125.00
Tourmaline ( Elbaite ) in Quartz

- Tourmaline ( Elbaite ) in Quartz

Brilliant doubly terminated parallel growth Quartz crystals enclosing green tourmalines and snow whi..

$255.00
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