The Assayer's Manual: An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
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Page x
... Percentages of Copper III . SILVER . Principal Ores ; Assays for Non - alloys Fire Assays ; Collecting the Silver with ... Percentage of Gold in Earthy and Gravelly Minerals , Poor in Gold ; Practice in Montana and Australia ; Fire or ...
... Percentages of Copper III . SILVER . Principal Ores ; Assays for Non - alloys Fire Assays ; Collecting the Silver with ... Percentage of Gold in Earthy and Gravelly Minerals , Poor in Gold ; Practice in Montana and Australia ; Fire or ...
Page xi
... Percentage of Sand , Percentage of Gold , Percentage of Platinum . Wet Assay ; Alloys of Platinum ; Gold with Platinum Silver with Platinum ; Siver and Gold with Platinum · . 178 · 179 . 180 . 181 VI . NICKEL . Ores ; Fire Assay ...
... Percentage of Sand , Percentage of Gold , Percentage of Platinum . Wet Assay ; Alloys of Platinum ; Gold with Platinum Silver with Platinum ; Siver and Gold with Platinum · . 178 · 179 . 180 . 181 VI . NICKEL . Ores ; Fire Assay ...
Page xii
... Percentage of Copper is Small The Wet Method partially used when the Percentage of Copper is Large ; The Processes ; Nickeliferous Pyrrhotine Compounds Difficultly Soluble , as , for instance , Slags ; Com- pounds containing Antimony ...
... Percentage of Copper is Small The Wet Method partially used when the Percentage of Copper is Large ; The Processes ; Nickeliferous Pyrrhotine Compounds Difficultly Soluble , as , for instance , Slags ; Com- pounds containing Antimony ...
Page xiv
... Percentage of Lead and Silver ; According to Ullgreen ; Tin Oxide ; Lead and Bismuth 227 · XII . MERCURY . • Ores ; Fire Assays ; Assays yielding free Mercury Different Processes ; Combustion Furnace Assays in which the Mercury is ...
... Percentage of Lead and Silver ; According to Ullgreen ; Tin Oxide ; Lead and Bismuth 227 · XII . MERCURY . • Ores ; Fire Assays ; Assays yielding free Mercury Different Processes ; Combustion Furnace Assays in which the Mercury is ...
Page 23
... percentage of gold in- creasing towards the bottom . The centre , as a rule , contains more silver than the edge . In the " five - mark piece " the centre is Too richer than the edge , and the same is the case with the " thaler , " as ...
... percentage of gold in- creasing towards the bottom . The centre , as a rule , contains more silver than the edge . In the " five - mark piece " the centre is Too richer than the edge , and the same is the case with the " thaler , " as ...
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Common terms and phrases
15 grammes 20 grammes added alloy ammonia ammonium antimony aqua regia argol arsenic assay sample beaker-glass bismuth black flux boiled borax cent charcoal charge chloride coal cobalt color common salt containing copper covering of common crucible crucible Fig cubic centimeter 0.061 cubic centimeters cubic inches cupelled decomposed determined diluted Dingler dish dried evaporated to dryness ferric oxide ferrous filtered filtrate flask fluid foreign metals Fresenius furnace fused fusion galena glass gold gramme 15.43 grains gramme 7.71 grains grammes 154.32 grains grammes 77.16 grains granulated lead heated hydrate hydrochloric acid ignited iron lead button liquid litharge mercury metallic sulphides method millimeters mixed mixture muffle muffle-furnace nickel nitric acid percentage placed platinum potassium carbonate potassium cyanide poured powdered precipitated pyrites quantity of lead residue roasted scorifier slag smelting sodium carbonate sodium sulphide solution substances sulphuretted hydrogen sulphuric acid temperature thousandths titrated tube u. h. Ztg vessels washed weighed zinc Ztschr
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