MATLOCKITE


Meaning of MATLOCKITE in English

General Information:

Chemical Formula:

PbFCl

Composition:

(Molecular Weight = 261.65 gm)

Lead 79.19 % Pb

Chlorine 13.55 % Cl

Fluorine 7.26 % F

Empirical Formula:

PbFCl

Environment:

Secondary mineral.

Locality:

Cromford, near Matlock, Derbyshire. Ancient lead slags at Laurium, Greece.

Name Origin:

Named from its locality.

Physical Properties:

Cleavage:

[001] Perfect

Color:

brownish yellow, colorless, green yellow, or dark yellow brown.

Density:

7.12

Diaphaniety:

Transparent

Habits:

Tabular - Form dimensions are thin in one direction., Crystalline - Coarse - Occurs as well-formed coarse sized crystals.,

Hardness:

2.5-3 - Finger Nail-Calcite

Luminescence:

Fluorescent.

Luster:

Adamantine - Pearly

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .