Calcite with Boulangerite inclusions Quartz and Tetrahedrite - image 1

Calcite with Boulangerite inclusions Quartz and Tetrahedrite

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A spectacular, 9.5 x 8 cm dome of interlocked cockscomb Calcite crystals, each averaging around 1.5 cm across, coloured jet-black by very finely disseminated Boulangerite inclusions; from the Herja mine at Chiuzbaia, Baia Mare, Romania. Boulangerite, a lead antimony sulphide, forms very fine, hair-like acicular crystals within the Calcite and, under low magnification, also manifest on the surface of the crystals as very fine filaments. A 4 cm long greyish-milky Quartz crystal stands upright at one end and clumps of dark-grey granular Tetrahedrite sit within many of the Calcite rosettes. A lustrous and very showy specimen.

Product details

SizeCabinet
Dimensions9.2 x 12.5 x 5.5 cm
Added on10/24/2024
Current owner
Unknown Owner
Acquired
Jul 2026
Price paid
$2,000.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

Learn more

Boulangerite
Mineral guide
Learn about Boulangerite
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Boulangerite
Regional guide
Boulangerite 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.