eosphorite

from Wiktionary, Creative Commons Attribution/Share-Alike License

• n. An orthorhombic-dipyramidal mineral containing aluminum, hydrogen, manganese, oxygen, and phosphorus.

from the GNU version of the Collaborative International Dictionary of English

• n. A hydrous phosphate of alumina and manganese. It is generally of a rose-pink color, -- whence the name.

from The Century Dictionary and Cyclopedia

• n. A hydrous phosphate of aluminium and manganese, with a small amount of iron.