Skip to product information
  • A delicate botryoidal formation of lemon yellow brucite crystals, naturally arranged in a rolling, bubble-like pattern. The translucent mineral exhibits a soft, pearly luster across its rounded surfaces, standing upright like a miniature abstract sculpture. The specimen appears to be complete and displays the characteristic rounded growth pattern typical of the Qilla Saifullah locality.
  • A delicate botryoidal formation of lemon yellow brucite crystals, naturally arranged in a rolling, bubble-like pattern. The translucent mineral exhibits a soft, pearly luster across its rounded surfaces, standing upright like a miniature abstract sculpture. The specimen appears to be complete and displays the characteristic rounded growth pattern typical of the Qilla Saifullah locality.

BRUCITE

Qilla Saifullah, Balochistan, Pakistan
7 x 4.2 x 1.5 cm
$100.00
$100.00
Shipping calculated at checkout.

Well-crystallized, botryoidal grouping of lemon yellow brucite from the well-known finds of Qilla Saifulleh. Specimen exhibits a pleasing rolling luster all across the front.

 

 

More info:

The brucite from Killa Saifullah occurs within serpentinized ultramafic rocks of ophiolitic origin. Formation takes place during low-temperature hydrothermal alteration of forsteritic olivine at temperatures below 300°C. The crystals develop through metamorphic-metasomatic processes involving magnesium-rich fluids circulating through the host serpentinite. Individual brucite crystals display perfect basal cleavage and typically form as platy hexagonal crystals up to 8cm in diameter. The specimens exhibit characteristic colorless to pale green coloration with pearly luster on cleavage surfaces. Associated minerals include serpentine group minerals and magnetite. This occurrence represents typical retrograde metamorphic conditions during serpentinization of ultramafic rocks, where brucite forms as a major phase in the hydration reaction sequence.