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FLASH PROMO off the entire site*

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Valid from saturday 10th october 2025 - 09 am (French time) to Sunday 11the october 2025 - 11h59 pm (French time), for immediate orders (no reservations).
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SOLD

Rhombohedral pyrite – Borieva Mine, Madan, Bulgaria - Thumbnail No. 196

Pyrite exhibiting a rare pseudo-rhombohedral habit, with strongly striated faces.
The crystal has a very vivid metallic luster and is in very good condition.

3.1 x 2 x 1.8 cm

Highlights of this specimen:

- Rare pseudo-rhombohedral habit
- Clearly visible growth striations
- Very pronounced metallic luster

For your information:

- The Borieva Mine is part of the Madan mining district, in the Rhodope Mountains, in southern Bulgaria. This Pb-Zn district is particularly renowned for its crystallizations of pyrite, sphalerite, galena, and other sulfides
- See the article: Moëlo, Y.: Pseudo-cubic trigonal pyrite from the Madan Pb–Zn ore field (Rhodope Massif, Bulgaria): morphology and twinning, Eur. J. Mineral., 35, 333–346