Childrenite

Childrenite is a rare hydrated phosphate mineral with elements iron, manganese, aluminium, phosphorus, oxygen and hydrogen.

It has a vitreous lustre with a white streak, and is brown or yellow in color.

Childrenite was discovered in 1823 by John George Children (1777–1852), who was a prominent English chemist and mineralogist.

This secondary mineral was first found in the George and Charlotte Mine near Tavistock in Devon.

The chemical composition of eosphorite only differs by being rich in manganese and not in iron.