Hollandite inclusions in quartz

Weight: 7.69 ct
Size: 12.7 x 11.0 x 9.7 mm


Spectacular star inclusions of hollandite in Quartz
Fantastic sample for gemologists, micromount and inclusions collectors!

Color: colorless quartz with black hollandite inclusions
Cut: oval, checkerboard crown, step cut pavilion
Treatments: not treated
Origin: Ambositra, Madagascar






From all quartz crystals with hollandite inclusions from Madagascar, very few are suitable for faceting to show inclusions. Most of the crystals lack of transparency and/or the hollandite stars are very shallow inside the quartz. This sample was selected for cutting from a great number of crystals with hollandite stars. hollandite inclusions.

These inclusions are described in Gubelin & Koivula Photoatlas vol. 2 page 610.

Rough material:

Hollandite in quartz rough