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Semseyite

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Semseyite is an uncommon lead antimony sulphide first described in 1881 from the Baia Sprie mine in Maramureș Co., Romania. This superb large miniature specimen is from the famous Herja mine in neighbouring Baia Mare where Semseyite occurs in much better crystals than the Type Locality. Very well formed metallic silvery grey tabular to platy crystals of Semseyite display wonderfully as stacked 'books', or pages in books. These Intergrown groups of crystals measure up to 1.7 cm across and sit on a dark brown-black crystallized Sphalerite matrix, with some metallic yellow Chalcopyrite. Ex Franz Lammer (1914-1997) collection.

Product details

SizeSmall Cabinet
Dimensions4.5 x 5.5 x 3.4 cm
Added on10/24/2024
Current owner
Unknown Owner
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

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Semseyite
Mineral guide
Learn about Semseyite
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Semseyite
Regional guide
Semseyite from Herja Mine
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Locality guide
Herja Mine
Herja Mine, Romania — Baia Mare district locality famous for stibnite sprays, black calcite, semseyite rosettes, and sulfosalt-rich vugs, a collector's classic.