FRONDELITE


Meaning of FRONDELITE in English

General Information:

Chemical Formula:

Mn++Fe+++4(PO4)3(OH)5

Composition:

(Molecular Weight = 648.28 gm)

Manganese 8.47 % Mn

Iron 34.46 % Fe

Phosphorus 14.33 % P

Hydrogen 0.78 % H

Oxygen 41.96 % O

Empirical Formula:

Mn2+Fe3+4(PO4)3(OH)5

Physical Properties:

Cleavage:

[100] Perfect, [010] Distinct, [001] Distinct

Color:

brown, brown green, brownish black, green black, or dark green.

Density:

3.476

Diaphaniety:

Subtranslucent

Hardness:

4.5 - Between Fluorite and Apatite

Luster:

Vitreous - Dull

Streak:

brownish gray

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .