Table of ContentsTetrahedrite or Gray Copper OreJamesoniteBournoniteStibnite, Gray Antimony or Antimony GlancePyrargyrite or Dark-Red Silver OreDyscrasiteBreithauptic Tetrahedrite or Gray Copper Ore Part of the list
Table of ContentsSmaltiteChloanthiteMispickel or ArsenopyriteNiccoliteProustite or Light-Red Silver Ore Arsenide minerals are compounds of the metals with arsenic. The list of nearly all these minerals
Table of ContentsGoldSilverCopperPlatinumIridosmine or osmiridiumArsenicBismuthList Native NON-METAL ElementsSulphurDiamondGraphiteCoalAnthraciteBituminous coal (soft coal)Lignite (brown coal)PetroleumAmber Here is a List Of Native Elements Minerals & Naturally Occurring Metals In Pure
Table of ContentsHow to Study the Mineral DescriptionsQuartz Specimen The great majority of minerals are compounds of two or more elements, though a few are native
Much of Basic Geological Survey Methods consist of calculating areas.—To find the distance from an inaccessible place. —To solve problems in connection with adits, shafts,
Table of ContentsPreparing a Sample for Gold AssayTo weigh the Button of Gold or SilverDRY ASSAY FOR SILVER AND GOLDHow to light the fireAssay of
If the ore be poor, it ought to be concentrated, the vein stuff being got rid of as much as possible. If mixed with iron
Table of ContentsChloride of Lead, Chloride of Silver, or Mercurous ChlorideWet Gold AssayWet Silver AssayWet Lead AssayWet Copper AssayWet Iron AssayRoastingMechanical Assay of Ores Wet
Table of ContentsPure Minerals always Have same CompositionAtomic Weights and Composition FormulasChemical Changes in Minerals Pure Minerals always Have same Composition A pure mineral, one
Table of ContentsDescription of the Crystal SystemsCubic or Regular Crystal SystemsTetragonal Crystal SystemsHexagonal Crystal SystemsOrthorhombic Crystal SystemsMonoclinic Crystal SystemsTriclinic Crystal SystemsCrystal Cleavage and FractureCrystal PartingCrystal Twinning Minerals have taken their place