Tags: Chemical Substance, Mineral.
Sampleite has a general formula of NaCaCu5(PO4)4Cl•5(H2O). It was first described in 1942 for an occurrence in Chuquicamata Chile and was named after Mat Sample a mine superintendent for the Chile Exploration Company.Sampleite is orthorhombic which means crystallographically it contains 3 unequal axes with angles that are 90°. It belongs to the space group 2/m. In a thin section it has a high surface relief and will have sharp boundaries with the surrounding medium.
