Brucite from Pakistan

Brucite from Pakistan – Old Collection

Brucite is a magnesium hydroxide with the formula Mg(OH)₂, known for its yellow, green, or sometimes colorless tones depending on the locality. It is a mineral associated with magnesium-rich rocks, especially in metamorphic environments or in certain contact zones with carbonate rocks.

This specimen from Pakistan shows the rounded forms typical of brucite from this region. These shapes are described as botryoidal, a term referring to growth in small rounded masses resembling a cluster of grapes. It is not a particular variety, but simply a way the mineral can develop, easy to recognize for beginners. The color is a pale yellow with a cool tone, clearly visible under lighting, accompanied by whitish deposits that are characteristic of the mineral phases associated with this type of occurrence.

The piece comes from an old collection dating back to 2009, which helps place its extraction within a well-documented period of Pakistani production. Mounted on a base, the specimen highlights its rounded morphology and allows for a clear view of its natural surface.

🟢 Mineral Information

- Chemical formula: Mg(OH)₂

- Crystal system: Trigonal

- Luster: Pearly to silky on fibrous areas; sometimes vitreous

- Hardness: 2.5 (Mohs)

- Density: Around 2.4 g/cm³

- Common habits: Massive, lamellar, fibrous, botryoidal

- Typical associations: Magnesite, serpentine, periclase, hydromagnesite

- Dimensions: width 81 × height 54 mm — 137 g (with base)