EUDIDYMITE


Meaning of EUDIDYMITE in English

General Information:

Chemical Formula:

NaBeSi3O7(OH)

Composition:

(Molecular Weight = 245.26 gm)

Sodium 9.37 % Na

Beryllium 3.67 % Be

Silicon 34.35 % Si

Hydrogen 0.41 % H

Oxygen 52.19 % O

Empirical Formula:

NaBe(Si3O7)(OH)

Environment:

Syenite rocks.

Locality:

Island Ovre-Aro, Langesundfiord, norway.

Physical Properties:

Cleavage:

[001] Good, [551] Good

Color:

blue, colorless, violet, gray, or yellow.

Density:

2.553

Diaphaniety:

Transparent to translucent

Habits:

Twinning Common - Crystals are usually twinned., Tabular - Form dimensions are thin in one direction.,

Hardness:

6 - Orthoclase

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .