Black Kyanite Raw Piece

A beautiful piece of raw Black Kyanite from Brazil.

Approx dimensions: 1x7cm

Approx weight: 18g

While kyanite is commonly blue due to iron and titanium trace elements, the dark or black colouration is caused by specific carbonaceous materials, graphite inclusions, or local trace-element and mineral peculiarities during growth. It typically grows as elongated, lamellar, or tabular blades that radiate outward from a central point to create distinctive fan- or broom-like aggregates