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A mineral of an olive-green color, commonly in orthorhombic crystals. It is a hydrous phosphate of copper.

rinciple found in the bark of the privet (Ligustrum vulgare), and extracted as a white crystalline substance with a warm, bitter taste; -- called also ligustron.

ontains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.

A bitter, white, crystalline substance found in orange and lemon seeds.

Hydrous sesquixoide of iron, an important ore of iron, occurring in stalactitic, mammillary, or earthy forms, of a dark brown color, yellowish brown powder. It includes bog iron. Also called brown hematite.

A hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals.

A mineral of pale steel-gray color and metallic luster, occurring in isometric crystals, and also massive. It is a sulphide of cobalt containing some nickel or copper.

A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color.

Lead monoxide; a yellowish red substance, obtained as an amorphous powder, or crystallized in fine scales, by heating lead moderately in a current of air or by calcining lead nitrate or carbonate. It is used in making flint glass, in glazing earthenware, in making red lead minium, etc. Called also massicot.…

Crystallized litharge, obtained by fusion in the form of fine yellow scales.

Pertaining to, or designating, a crystalline, organic acid, resembling cholic acid, found in the biliary intestinal concretions (bezoar stones) common in certain species of antelope.

To supply with litter, as cattle; to cover with litter, as the floor of a stall. Tell them how they litter their jades. Bp. Hacke For his ease, well littered was the floor. Dryden.

oxylon Campechianum), a native of South America, It is a red, heavy wood, containing a crystalline substance called hæmatoxylin, and is used largely in dyeing. An extract from this wood is used in medicine as an astringent. Also called Campeachy wood, and bloodwood.

A kind of crystallite having a (slender) acicular form.

marine, and regarded as a derivative of benzoic aldehyde. It is obtained in long white crystalline tufts, -- whence its name.

A mineral occurring in small, green, transparent, monoclinic crystals. It is a hydrous phosphate of iron.

A kind of watch crystal which is more than ordinarily flattened in the center; also, a species of convexoconcave lens for spectacles.

de found in the seeds of several species of lupine, and extracted as a yellowish white crystalline substance.

several species of lupine (Lupinus luteus, L. albus, etc.), and extracted as a bitter crystalline substance.

yellow color. Cf. Cobaltic. Luteocobaltic chloride (Chem.), a brilliant reddish yellow crystalline compound, Co2Cl6(NH3)12, obtained by the action of ammonium chloride on an ammoniacal solution of cobaltic chloride.