Staurolite is an iron aluminum silicate mineral known for its brown to reddish-brown crystal formations and naturally occurring cross-shaped twins. Specimens from Madagascar often display well-defined crystal structure with a rough, earthy texture.
With a hardness of 7–7.5 on the Mohs scale, staurolite is durable and suitable for collectors, display, and decorative use. The crystals commonly occur embedded in metamorphic rock matrix.
Each piece shows unique crystal shapes, surface textures, and natural variations in color, making every specimen distinct.
