ORTHOCHRYSOTILE


Meaning of ORTHOCHRYSOTILE in English

General Information:

Chemical Formula:

Mg3Si2O5(OH)4

Composition:

(Molecular Weight = 277.11 gm)

Magnesium 26.31 % Mg

Silicon 20.27 % Si

Hydrogen 1.45 % H

Oxygen 51.96 % O

Empirical Formula:

Mg3Si2O5(OH)4

Environment:

Metamorphosed and hydrothermally-altered ultra-basic rocks.

Name Origin:

From the orthorhombic crystal symmetry and Greek chrysos - "gold" and tilos - "fiber."

Physical Properties:

Cleavage:

[???] Distinct

Color:

brownish, colorless, green, gray, or gray brown.

Density:

2.53 - 2.65, Average = 2.59

Diaphaniety:

Translucent to opaque

Habits:

Massive - Fibrous - Distinctly fibrous fine-grained forms., Amorphous - No crystalline form or imitative shape., Granular - Generally occurs as anhedral to subhedral crystals in matri x.

Hardness:

2.5-3 - Finger Nail-Calcite

Luminescence:

Non-fluorescent.

Luster:

Silky

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .