Manganese-bearing Calcite specimens

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Manganoan Calcite

Piz Beverin, Mathon, Schams, Hinterrhein Valley, Graubunden, Switzerland

$2450

90mm x 60mm x 50mm

From: The Arkenstone

Manganoan Calcite

Huanggang Mine, Keshiketeng Co., Chifeng, Inner Mongolia, China

$280

28mm x 21mm x 16mm

From: Bob Griffis Minerals

Manganoan Calcite

Mexico

$858 *

127mm x 120mm x 83mm

From: A Bijoux

* price is an approximate conversion and may not be accurate.

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