See:silver lead ore
Lead that contains silver. CMD
a. A lamellar variety of calcite with a pearly white luster.
b. Silver-coated white metal. Standard, 2
c. A finely divided tin moss or sponge obtained from a solution of tin by
precipitation with zinc. Standard, 2
d. Adj. pertaining to, containing, or resembling silver; silvery.
AGI
An orthorhombic mineral, Ag2 S ; isometric above 180 degrees C;
dimorphous with acanthite; massive or as coating; metallic lead-gray;
soft, sectile; sp gr, 7.3; in veins with other silver and sulfide
minerals; commonly pseudomorphous after acanthite; an important ore of
silver. Syn:silver glance; vitreous silver; argyrite.
A trigonal mineral, AgFe3 (SO4 )2 (OH)6 ;
alunite group; yellow to brown-yellow.
An orthorhombic mineral, AgFe2 S3 ; dimorphous with
sternbergite.
a. Potter's clay; white clay. Standard, 2
b. See:aluminite
a. Pertaining to, largely composed of, or containing clay-size particles
or clay minerals, such as an argillaceous ore in which the gangue is
mainly clay; esp. said of a sediment (such as marl) or a sedimentary rock
(such as shale) containing an appreciable amount of clay. Syn:clayey
See also:argillic
b. Pertaining to argillite. AGI
A brown to deep-red variety of natural ferric oxide containing an
appreciable portion of clay (or sand). Syn:ironstone clay
A limestone containing an appreciable amount (but less than 50%) of clay;
e.g., cement rock. AGI
Ore in which the gangue is mainly clay. Osborne
A sedimentary rock composed of clay-grade particles; i.e., composed of
minute mineral fragments and crystals less than 0.002 mm in diameter;
containing much colloidal-size material. In addition to finely divided
detrital matter, argillaceous rocks consist essentially of illite,
montmorillonite, kaolinite, gibbsite, and diaspore. CMD
The development of clay minerals by the weathering of aluminum silicates.
CF:kaolinization
Pertaining to clay or clay minerals; e.g., argillic alteration in which
certain minerals of a rock are converted to minerals of the clay group.
CF:argillaceous
A compact rock, derived either from mudstone (claystone or siltstone), or
shale, that has undergone a somewhat higher degree of induration than
mudstone or shale but is less clearly laminated and without its fissility,
and that lacks the cleavage distinctive of slate. AGI
The replacement or alteration of feldspars to form clay minerals, esp. in
wall rocks adjacent to mineral veins. CF:kaolinization
A colorless, odorless, monatomic, inert gas. Symbol, Ar. Obtained by the
fractionation of liquid air. Used in electric light bulbs and in
fluorescent tubes. Handbook of Chemistry and Physics, 3
A variety of asphaltic sandstone. Tomkeieff
Former name for argentite; also called argyrose.
An orthorhombic mineral, Ag8 GeS6 ; pseudocubic; forms a
series with canfieldite.
A discredited term for a silver-iron sulfide, probably argentopyrite.