Quartz - Madan, Bulgaria | Ref. 563

This quartz from the Madan district in Bulgaria features a compact cluster of well-formed crystals arranged in a radiating pattern. The points, mostly translucent to slightly milky, show scattered red inclusions, likely linked to fine deposits of iron oxides.

The piece presents a uniform structure, with crystals of similar size but slightly more developed toward the center, giving it a rounded and balanced appearance. Collected in 2008, this quartz reflects formations typically found in this locality, known for the variety of its mineral associations.

Dimensions: 53 mm wide × 34 mm high.

🟢 Mineral Information

- Chemical formula : SiO₂

- Crystal system : Hexagonal (trigonal)

- Lustre : Vitreous

- Hardness : 7 (Mohs)

- Density : Around 2.65 g/cm³

- Varieties : Colorless quartz; quartz with inclusions (iron oxides, to be confirmed)

- Typical associations : Sphalerite, galena, pyrite, chalcopyrite (common in the Madan district)

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