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Dialogite :: Dialogite (n.) Native carbonate of manganese; rhodochrosite.

Bead :: Bead (n.) A glassy drop of molten flux, as borax or microcosmic salt, used as a solvent and color test for several mineral earths and oxides, as of iron, manganese, etc., before the blowpipe; as, the borax bead; the iron bead, etc..

Pyrosmalite :: Pyrosmalite (n.) A mineral, usually of a pale brown or of a gray or grayish green color, consisting chiefly of the hydrous silicate of iron and manganese; -- so called from the odor given off before the blowpipe..

Zaffer :: Zaffer (n.) A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc..

Manganesate :: Manganesate (n.) A manganate.

Metal :: Metal (n.) An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted with the nonmetals, or metalloids. No sharp line can be drawn between the metals and nonmetals, and certain elements partake of both acid and basic qualities, as chromium, manganese, bismuth, etc..

Knebelite :: Knebelite (n.) A mineral of a gray, red, brown, or green color, and glistening luster. It is a silicate of iron and manganese..

Umber :: Umber (n.) A brown or reddish pigment used in both oil and water colors, obtained from certain natural clays variously colored by the oxides of iron and manganese. It is commonly heated or burned before being used, and is then called burnt umber; when not heated, it is called raw umber. See Burnt umber, below..

Rhodochrosite :: Rhodochrosite (n.) Manganese carbonate, a rose-red mineral sometimes occuring crystallized, but generally massive with rhombohedral cleavage like calcite; -- called also dialogite..

Psilomelane :: Psilomelane (n.) A hydrous oxide of manganese, occurring in smooth, botryoidal forms, and massive, and having an iron-black or steel-gray color..

Manganesious :: Manganesious (a.) Manganous.

Manganic :: Manganic (a.) Of, pertaining to resembling, or containing, manganese; specif., designating compounds in which manganese has a higher valence as contrasted with manganous compounds. Cf. Manganous..

Epidote :: Epidote (n.) A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese..

Triplite :: Triplite (n.) A mineral of a dark brown color, generally with a fibrous, massive structure. It is a fluophosphate of iron and manganese..

Mangan :: Mangan (n.) See Mangonel.

Manganiferous :: Manganiferous (a.) Containing manganese.

Lithiophilite :: Lithiophilite (n.) A phosphate of manganese and lithium; a variety of triphylite.

Dendrite :: Dendrite (n.) A stone or mineral on or in which are branching figures resembling shrubs or trees, produced by a foreign mineral, usually an oxide of manganese, as in the moss agate; also, a crystallized mineral having an arborescent form, e. g., gold or silver; an arborization..

Manganate :: Manganate (n.) A salt of manganic acid.

Braunite :: Braunite (n.) A native oxide of manganese, of dark brownish black color. It was named from a Mr. Braun of Gotha..

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