Meaning of AFWILLITE in English

AFWILLITE

General Information:

Chemical Formula:

Ca3Si2O4(OH)6

Composition:

(Molecular Weight = 342.45 gm)

Calcium 35.11 % Ca

Silicon 16.40 % Si

Hydrogen 1.77 % H

Oxygen 46.72 % O

Empirical Formula:

Ca3(Si2O4)(OH)6

Environment:

Alteration product of spurrite.

Locality:

TL: Dutoitspan diamond mine at Kimberly, South Africa.

Physical Properties:

Cleavage:

[001] Perfect, [???] Distinct

Color:

colorless or white.

Density:

2.62

Diaphaniety:

Transparent to Subtransparent to translucent

Habits:

Massive - Uniformly indistinguishable crystals forming large masses., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,

Hardness:

3 - Calcite

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .