Table of ContentsTHE OREBODIESSTANDARDIZATIONUNDERGROUND METHODSREPORTS OFFICE RECORDS The sampling and estimating of the orebodies in a mines have been made a part of the work of
Table of ContentsMuscovitePhlogopiteBiotiteLepidolite Mica type minerals make a group of silicates of alumina, with potash, iron, magnesia; characterized by easy cleavage into thin, flexible, elastic sheets.
Table of ContentsThoriteBerylAquamarine Zircon and Zirconium Minerals; ZrSiO4 are colorless, pale yellow, grayish, yellowish green, brownish yellow, reddish brown; powder, white or nearly so; luster, like
Table of ContentsFeldsparsHornblende VS AmphiboleTremoliteActinolitePyroxeneNepheline & NepheliteSodaliteLapis-lazuli or lazuríteZirconGarnetOlivine, Chrysolite or PeridotEpidote or PistaciteTopazTourmaline or SchorlCalamine or HemimorphiteStauroliteAndalusiteRhodoniteMicaChloriteSerpentineGarnieriteTalcSoapstone or steatiteKaolin or China ClayTitanite or Sphene The
Table of ContentsAugiteDiopsideDiallageHyperstheneEnstatiteJadeiteSpodumene The mineral pyroxene is a name applied to a group of silicates that are similar in composition to the hornblende group, but
Table of ContentsOrthoclaseAdularia & SanidineMicroclineAlbiteOligoclaseAndesineLabradoriteAnorthite Feldspars constitute a group of similar minerals, which may be described as silicates of aluminum and either potash or soda or lime. Color,
Table of ContentsCalcite or CalcsparDolomiteMagnesiteHydromagnesiteSiderite or Iron SparAnkeriteRhodochrosite or Manganese SparStrontianiteWitheriteCerussite or White Lead OreSmithsoniteMalachiteAzurite This is an introduction list that covers the most common
Cryolite; Na3AlF6. — Color, snow-white or ice-like, sometimes reddish, brownish, or even black; luster, glassy and greasy; H = 2.5; G = 2.95 to 3;
Table of ContentsMagnetite or Magnetic Iron Ore: Fe3O4Ilmenite or Titanic Iron Ore: FeTiO3FrankliniteHematite: Fe2O3Limonite: 2F2O33H2OGoethite: Fe2O3H2OChromite: FeCr2O4Stellite AlloysNichromeStainless SteelTinstone or Cassiterite: SnO2Corundum: Al2O3Bauxite: Al2O3·2H2OPyrolusite: MnO2Psilomelane or Hard Manganese OreBrauniteZincite or Red Zinc Ore ZnOCuprite or
Table of ContentsIron Pyrites or PyriteMarcasiteCopper Pyrites or ChalcopyritePyrrhotite or Magnetic PyritesBornite or Peacock Copper OreChalcocite or Copper GlanceTetrahedrite or Gray Copper OreGalenaJamesoniteBournoniteStibnite, Gray Antimony