MARIALITE


Meaning of MARIALITE in English

General Information:

Chemical Formula:

Na4Al3Si9O24Cl

Composition:

(Molecular Weight = 845.11 gm)

Sodium 10.88 % Na

Aluminum 9.58 % Al

Silicon 29.91 % Si

Chlorine 4.20 % Cl

Oxygen 45.44 % O

Empirical Formula:

Na4Al3Si9O24Cl

Environment:

Basaltic tuff.

Locality:

Pianura. Near Naples, Italy.

Physical Properties:

Cleavage:

[100] Distinct, [110] Distinct

Color:

bluish, brownish, colorless, violet, or greenish.

Density:

2.5 - 2.62, Average = 2.56

Diaphaniety:

Transparent to Translucent

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luminescence:

Fluorescent.

Luster:

Vitreous - Pearly

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .