Dalmatian Quartz 11.98 ct
Round Cabochon
6.80 mm
Brazil
max10609

Dalmatian quartz

this is a light smoky quartz with brown patches /clouds like cotton balls.

These features are not completely explained,

but it seems they are due to natural earth irradiation that cause the deformation

of the crystal lattice and changed the electrons orbits,

From Brazil.