Naturally Etched Garnet Almandine-Spessartine

Naturally Etched Garnet Almandine-Spessartine. Photo by Enrico Bonacina

Spessartine is a nesosilicate, manganese aluminium garnet species, Mn²⁺₃Al₂(SiO₄)₃. This mineral is sometimes mistakenly referred to as spessartite. Spessartine's name is a derivative of Spessart in Bavaria, Germany, the type locality of the mineral.

From Navegadora claim, Minas Gerais, Brazil

Color: Red, Yellow, Orange, Pink, Brown
Luster: Adamantine
Crystal system: Isometric 

Hardness (Mohs hardness scale): 7
Mineral class: Garnet
Transparency: Transparent