Exotic Mineralogy: Or, Coloured Figures of Foreign Minerals: As a Supplement to British Mineralogy, Volume 2

accompanied according acid Aikin Alumine analysis angles Antimony appears Argilla Arsenic Bismuth blue Bournon British Museum brittle brown called Carbonate of Lime Catal characters collection colour common composed considered contains Copper Count crystals cube described direction discovered distinguished dull easily edges exhibit faces Feldspar figure foliated fracture given gives glass grains Grav green grey hardness Haüy heated kind Klaproth known larger Lead less Loss lustre Magnesia Manganese mass matrix metallic Mica mineral Mineralogists mines minute modifications Native nearly observed obtained occurs opaque Oxide of Iron parallel planes plate powder present primitive prism probably produced pure pyramid Pyrites Quartz rare rectangular resembling rhomboidal rock scratch shows sides Silex Silver sometimes Spec species specimen stone structure substance Sulphur Sulphuret surface Tabl taken Tellurium terminal transparent truncated upper variety various veins Water Werner yellow