Beautiful labradorite from Madagascar

A labradorite from Madagascar. A polished block cut exactly along the schiller-optimum axis, the eponymous schiller moves across the polished surface from deep blue to green to gold.

Labradorite is a calcium-sodium plagioclase feldspar from the solid solution series. The characteristic schiller (labradorescence) is created by the refraction of light on microscopically thin lamellar layers of different plagioclase composition.

The Madagascan deposits in the Maniry region provide the highest quality labradorite material worldwide. The schiller moves across the polished surface as the block is rotated.

The choice of cut along the schiller-optimum axis is a curatorial sculptural decision. The block cut does not follow maximum material yield, but rather maximum optical schiller legibility from the main view.

A balanced display case dimension makes the piece presentable. Material value is a function of schiller intensity, basic tone tranquility, and block size.

A Madagascan collector's item with documented Maniry provenance and premium schiller. The polished surface appears different from every lighting direction, the labradorescence moves dynamically and makes the block a visually vibrant display object. The block is suitable for reception areas, gallery staging or as a central solitaire in a living space.