Bertrandite in a Beryl cast - image 1
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Updated 2d ago

Bertrandite in a Beryl cast

$100.00

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A hollow cast of what was once beryl measuring 1.2 x 0.7 cm in size and a quartz matrix, this lined with micro crystals of bertrandite. The specimen comes with a collection label from Ray DeMark.The Biermann Quarries, located in the Fairfield County area of Connecticut, consist of old pegmatite excavations historically worked for industrial minerals such as feldspar and muscovite. Geologically, the site features coarse-grained intrusive rock formations embedded within the regional metamorphic terrain, yielding notable specimens of black tourmaline, beryl, and related secondary mineral pseudomorphs within its extensive waste dumps.

Product details

SpeciesBeryl, Bertrandite
SizeSmall Cabinet
Dimensions5.5 x 4.0 x 3.0 cm
Listed on09/29/2026
LocalityBiermann Quarries, Fairfield Co., Connecticut, USA
SKU2062647
Current owner
WM
Weinrich MineralsFeatured
3,109 for sale·8 sold

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Beryl
Mineral guide
Learn about Beryl
iconic mineral with prisms and vivid color varieties (aquamarine, emerald, morganite); prized for crystal form, striking matrix, and collector appeal.