Tables for Microscopic Identification of Ore Minerals

aggregates air In oil Anisotr anisotropic argentite arsenic arsenopyrite basal bismuth bismuthinite bixbyite bluish grey bornite bournonite braunite brownish cassiterite cell chalcocite chalcopyrite chp pyr clausthalite COLOUR commonly conc covellite creamy CRYST cubanite dark grey darker Diff distinct dyscrasite Econ enargite exsolution FeCl3 fumes tarnish galena Geology goethite grains greenish greyish white hausmannite hematite HgCl2 HNO3 idiomorphic ilmenite inclusions intergrowths Isom Isotropic jamesonite krennerite lamellar light in air lighter linnaeite loellingite magnetite marcasite minerals neodigenite niccolite occur oil gr Ortho Parag pentlandite photoel photometer ocular pinkish Polishes easily proustite pyrargyrite pyrite pyrrhotite Ramdohr rammelsbergite Refl replaced safflorite silver skutterudite slightly slowly stains SnCl2 spec sphalerite stains brown stains irid stains light brown stannite stibnite strong TALMAGE HARDNESS REFLECTIVITY TALMAGE NAME CHEM tarnishes irid tennantite tetrahedrite tint twinning weak white light yellow yellowish zonal texture