ARGENTITE  , a See also:

• MINERAL

mineral which belongs to the See also:

• GALENA

galena See also:

• GROUP

group, and is cubic See also:

• SILVER

silver sulphide (Ag2S) . It is occasionally found as uneven cubes and octahedra, but more often as dendritic or earthy masses, with a blackish See also:

• LEAD
• LEAD (pronounced iced)

lead-See also:

• GREY, CHARLES GREY, 2ND EARL (1764-1845)
• GREY, HENRY GREY, 3RD EARL (1802-1894)
• GREY, LADY JANE (1537-1554)
• GREY, SIR EDWARD
• GREY, SIR GEORGE (1812–1898)

grey See also:

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

colour and metallic lustre . The cubic cleavage, which is so prominent a feature in galena, is here See also:

• PRESENT

present only in traces . The mineral is perfectly sectile and has a shining streak; hardness 2.5, specific gravity 7.3 . It occurs in mineral See also:

• VEINS

veins, and when found in large masses, as in See also:

• MEXICO
• MEXICO (Span. Mejico, or Mexico,)
• MEXICO, FEDERAL DISTRICT OF
• MEXICO, GULF OF

Mexico and in the Comstock lode in See also:

• NEVADA
• NEVADA (a Spanish word meaning " snow-clad " or " snowy land," originally applied to a snow-capped mountain range on the Pacific slope)

Nevada, it forms an important ore of silver . The mineral was mentioned so See also:

• LONG, GEORGE (1800-1879)
• LONG, JOHN DAVIS (1838– )

long ago as 1529 by G . See also:

• AGRICOLA (originally SCHNEIDER, then SCHNITTER), JOHANNES (1494-1566)
• AGRICOLA (the Latinized form of the name BAUER), GEORG (1490-1555)
• AGRICOLA, CHRISTOPH LUDWIG (1667-1719)
• AGRICOLA, GNAEUS JULIUS (A.D. 37-93)
• AGRICOLA, JOHANN FRIEDRICH (1720-1774)
• AGRICOLA, MARTIN (c. 1500-1556)
• AGRICOLA, RODOLPHUS (properly ROELOF HUYSMANN) (1443-1485)

Agricola, but the name argentite (from the See also:

• LAT

Lat. argentum, " silver ") was not used till 2845 and is due to W. von See also:

• HAIDINGER, WILHELM KARL, RITTER VON (1795-1871)

Haidinger . Old names for the See also:

• SPECIES

species are Glaserz, silver-glance and vitreous silver . A cupriferous variety, from Jalpa in See also:

• TABASCO

Tabasco, Mexico, is known as jalpaite . Acanthite is a supposed dimorphous See also:

• FORM (Lat. forma)

form, crystallizing in the orthorhombic See also:

• SYSTEM

system, but it is probable that the crystals are really distorted crystals of argentite . (L . J .