JAMESONITE


Meaning of JAMESONITE in English

General Information:

Chemical Formula:

Pb4FeSb6S14

Composition:

(Molecular Weight = 2,064.07 gm)

Iron 2.71 % Fe

Antimony 35.39 % Sb

Lead 40.15 % Pb

Sulfur 21.75 % S

Empirical Formula:

Pb4Fe2+Sb6S14

Name Origin:

Named after the Scottish Mineralogist, R. Jameson (1774-1854).

Physical Properties:

Cleavage:

[001] Perfect

Color:

lead gray, steel gray, or dark lead gray.

Density:

5.5 - 5.63, Average = 5.56

Diaphaniety:

Opaque

Habits:

Acicular - Occurs as needle-like crystals., Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Massive - Fibrous - Distinctly fibrous fine-graine d forms.

Hardness:

2.5 - Finger Nail

Luminescence:

None.

Luster:

Metallic

Streak:

black. grayish

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .