Chemical Formula

MnCO₃

Hardness (Mohs)

3.5 - 4

Crystal System

Trigonal

Streak

White

Luster

Vitreous to pearly

Diaphaneity

Transparent to Translucent

Color

Typically rose-red, but can also be pink, yellowish, brownish, gray, or white. Often banded with lighter and darker shades of pink and white.

Crystal Habit / Mode of Occurrence

Commonly rhombohedral crystals, often with curved faces. Also found in granular, massive, botryoidal, and stalactitic forms. Distinctive banded forms are also common.