nosean – מילון אנגלי-אנגלי

English Wikipedia - The Free Encyclopedia

Nosean

Nosean, also known as Noselite, is a mineral of the feldspathoid group with formula: Na₈Al₆Si₆O₂₄(SO₄). It forms isometric crystals of variable color: white, grey, blue, green, to brown. It has a Mohs hardness of 5.5 to 6 and a specific gravity of 2.3 to 2.4. It is fluorescent. It is found in low silica igneous rocks. There is a solid solution between nosean and hauyne, which contains calcium.

See more at Wikipedia.org...

Mineralogy Database

הורד מילון בבילון 9 למחשב שלך

Nosean

General Information:

Chemical Formula:
Na8Al6Si6O24(SO4)

Composition:
(Molecular Weight = 1,012.38 gm)
Sodium 18.17 % Na
Aluminum 15.99 % Al
Silicon 16.65 % Si
Hydrogen 0.20 % H
Sulfur 3.17 % S
Oxygen 45.83 % O

Empirical Formula:
Na8Al6Si6O24(SO4)·(H2O)

Environment:
Igneous rocks low in silica and rich in alkalies.

Locality:
Laacher See in the Eifel district of Rhineland.

Name Origin:
Named after the German mineralogist, K. W. Nose (1753-1835).
Physical Properties:

Cleavage:
[110] Perfect

Color:
white, gray, blue, green, or brown.

Density:
2.3 - 2.4, Average = 2.34

Diaphaniety:
Transparent to Translucent

Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,

Hardness:
5.5-6 - Knife Blade-Orthoclase

Luminescence:
Fluorescent.

Luster:
Vitreous - Greasy

Streak:
bluish white
More details...

nosean – מילון אנגלי-עברי

nosean – מילון אנגלי-אנגלי