SEMSEYITE


Meaning of SEMSEYITE in English

General Information:

Chemical Formula:

Pb9Sb8S21

Composition:

(Molecular Weight = 3,512.19 gm)

Antimony 27.73 % Sb

Lead 53.10 % Pb

Sulfur 19.17 % S

Empirical Formula:

Pb9Sb8S21

Locality:

Felsobanya (Baia Sprie), Rumania.

Name Origin:

Named after the Hungarian collector of minerals, A. Semsy.

Physical Properties:

Cleavage:

[112] Good

Color:

black or gray.

Density:

5.8 - 6.1, Average = 5.94

Diaphaniety:

Opaque

Habits:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Spherical - Spherical, rounded aggregates., Tabular - Form dimensions are thin in one directio n.

Hardness:

2.5 - Finger Nail

Luster:

Metallic

Streak:

black

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .