COWLESITE


Meaning of COWLESITE in English

General Information:

Chemical Formula:

CaAl2Si3O10·5-6(H2O)

Composition:

(Molecular Weight = 446.38 gm)

Calcium 8.98 % Ca

Aluminum 12.09 % Al

Silicon 18.88 % Si

Hydrogen 2.71 % H

Oxygen 57.35 % O

Empirical Formula:

CaAl2Si3O10·6(H2O)

Environment:

A low-silica zeolite from hydrothermal solutions in low-silica rocks.

IMA Status:

Approved IMA 1975

Locality:

Neer Road, N of Goble, Columbia County, Oregon, USA>

Name Origin:

Named for John George Cowles (1907-1985), Ameriacan amateur mineralogist and zeolite collector.

Physical Properties:

Cleavage:

[010] Perfect

Color:

colorless, gray white, or white.

Density:

2.14

Diaphaniety:

Transparent

Habits:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite)., Stellate - Occurs as spherical, radial aggregates radiating from a "star" like point.,

Hardness:

5-5.5 - Apatite-Knife Blade

Luminescence:

Fluorescent.

Luster:

Vitreous - Greasy

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .