MAGNESIOCUMMINGTONITE


Meaning of MAGNESIOCUMMINGTONITE in English

General Information:

Chemical Formula:

(Mg,Fe++)7Si8O22(OH)2

Composition:

(Molecular Weight = 836.02 gm)

Magnesium 15.26 % Mg

Iron 11.69 % Fe

Silicon 26.88 % Si

Hydrogen 0.24 % H

Oxygen 45.93 % O

Empirical Formula:

Mg5.25Fe2+1.75Si8O22(OH)2

Physical Properties:

Cleavage:

[110] Good

Color:

brown, gray green, white, light gray, or dark green.

Density:

3.13

Hardness:

5-6 - Between Apatite and Orthoclase

Luster:

Silky

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .