Friedelite

Friedelite is a mineral^[2] in the pyrosmalite group.^[3] The mineral is named after Charles Friedel.

Friedelite
General
Category	Minerals
IMA symbol	Fdl[1]
Identification
Mohs scale hardness	4 - 5
Streak	White

Name

The name friedelite is only for pure Mn end-member of the group pyrosmalite.^[4]: 30

The mineral was named in 1876 by Emile Bertrand after Charles Friedel.^[3]

Characteristics

Color

Its color can be pale pink, dark brownish red, red, brown, or orangish red. It is normally found in 1 to 5 carats^[5] as well as nontransparent.^[2]

Fluorescence

The mineral has a colorful luminescense under UV light.^[2] With the fluorescence being red, but at rare times it has a green or yellow fluorescence.^[6]