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STIBNITE

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Originally appearing in Volume V25, Page 915 of the 1911 Encyclopedia Britannica.

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STIBNITE , a See also:

MINERAL

mineral consisting of See also:

ANTIMONY (symbol Sb, atomic weight 120.2)

antimony sulphide, Sb2S3, occurring as bladed or acicular orthorhombic crystals; an important ore of antimony. It was mentioned by Dioscorides and See also:

Pliny under the names stimmi, stibi and platyophthalmon (rrXart,60aXµov); the last name refers to the use which the ancients made of the powdered mineral for darkening the See also:

eye-brows to increase the apparent See also:

SIZE

size of the eyes. Antimonite is a name in See also:

COMMON

common use for this See also:

SPECIES

species. The crystals are prismatic in See also:

HABIT (through the French from Lat. habitus, from habere, to have, hold, or, in a reflective sense, to be in a certain condition; in many of the English senses the French use habitude, not habit)

habit, deeply furrowed longitudinally, and usually terminated by acute pyramidal planes. There is a perfect cleavage (ono) parallel to the length of the crystals, and the basal See also:

PLANE

plane (oor) is a plane of gliding; the latter gives rise to very characteristic transverse striations or nicks on the cleavage surfaces of crystals which have been See also:

bent. The See also:

COLOUR (Lat. color, connected with celare, to hide, the root meaning, therefore, being that of a covering)

colour is See also:

lead-See also:

grey, and the lustre metallic and brilliant a crystals become dull on prolonged exposure to See also:

LIGHT

light. Cleavage flakes of extreme thinness transmit a small amount of red light, but, are more transparent for See also:

HEAT (0. E. haktu, which like " hot," Old Eng. hat, is from the Teutonic type haita, hit, to be hot; cf. Ger. hitze, heiss; Dutch, hitte, heet, &c.)

heat rays. The mineral is quite soft (H.=2), and has a specific gravity of 4.6. Stibnite occurs with See also:

QUARTZ

quartz in beds and See also:

VEINS

veins in gneisses and See also:

SCHISTS (Gr. vxq'ecv, to split)

schists, or with See also:

BLENDE, or SPHALERITE

blende, See also:

GALENA

galena, &c., in metalliferous veins. Magnificent See also:

groups of brilliant crystals, up to 20 in. in length, are abundant in the extensive antimony mine of Ichinokawa, See also:

province of Iyo, See also:

JAPAN

Japan. Large, but dull, crystals have also been found at Lubilhac in Haute-See also:

LOIRE

Loire, See also:

France. Prismatic and acicular crystals often penetrating See also:

TABULAR

tabular crystals of See also:

BARYTES

barytes, are common at Felsobanya near Magy-Bknya and Kremnitz in See also:

Hungary.

(L. J.

End of Article: STIBNITE

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