Blogs

French Crushability & French Abrasion Index

The french crushability and french abrasion test gives an abrasivity index and a crushability index that will rate the material in comparison with other materials. The french abrasion test is mainly used to estimate hammer wear life in impactor applications. The crushability index is a measure of how easily the material breaks down. The test also includes the specific gravity

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Furnace VS Kiln: Definition and Difference

Table of ContentsFurnace DefinitionKiln Definition Understanding the difference between a kiln and a furnace is not so hard, once you know their true definitions. A kiln is usually charged (filled with stuff), then heated to fuse the stuff, then cooled, and the stuff removed. A furnace is usually heated first, then charged, then the stuff removed, and the furnace eventually cooled (though

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Laboratory Flotation Test Procedure

Mineralogy & Flotation: Floatability VS Selectivity Test Assessment Flotation Kinetics: Mass & Water Recovery VS Entrainment & Mineralogy Timed Flotation Test: Concentrate Collection & Cumulative Grade Recovery Curve

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How to Size of Crushing Plant

When calculating the size of a crushing plant, it is not advisable to design a crushing plant to run for 24 hours per day. The machines are subjected to greater shocks and rougher wear than grinding and concentrating machinery and need more frequent attention in consequence. It is an almost universal custom to crush the daily mine output in one

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Small Screw Conveyor

Small Screw conveyors are used principally for bulk conveying of light and fluffy dry material, materials which dust badly when conveyed, hot materials which cannot be handled on rubber belts, and for conveying of liquid pulps. They may be installed on an angle for lowering or elevating materials. With the bottom or end of trough fitted with a screen cloth,

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Managing a Mineral Discoveries

Table of ContentsSampling and AssayingChanneled SamplesDuplicate SamplesDevelopment of a DiscoveryProspecting in CanadaFinancing for ProspectorsExploration Companies Sampling and Assaying A prospector sometimes fails to reap the full advantage, or even any advantage, from a discovery, because of his manner of handling it. The first step is to ascertain the value of the mineral deposit; in most cases, this must be done by having

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Mineral Surface Outcrops and Showings

Table of ContentsVeinsCapping and StainsFloatSome Natural Aids to DiscoveryPanningMagnetic AttractionElectromagnetic MethodTopographic FeaturesGlacial HollowsRock Associations of MineralsGeological RelationshipsContacts The search for mineral deposits can be made to produce better results if special attention is given to certain surface appearances. Experience has shown that minerals sought for in a known area are distributed in definite relations to the rocks of that area. The

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Practical Web Handbook to Mineral Prospecting Methods in Mining

Table of ContentsDevelop an Exploration ProgramSystematizing the Prospecting WorkHow to Evaluate a Work of GeologistsFood SupplyQuantity and Kind of FoodImportance of Well-Cooked FoodThe Prospector’s ToolsProspecting Pocket CompassNotebook and DiaryA Typical Day’s WorkUsing the Pocket CompassProspector’s License, Staking, and RecordingGeological Survey Reports and MapsWhat the Maps ShowMap ReadingContour LinesSectionsIrregularities in Staking Claims The prospector’s most valuable prospecting equipment for his business is his

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List Semi-Precious Stones Names

Table of ContentsDiamondsRubies and SapphiresEmeraldSpinelDiasporeChrysoberylPhenacitePeridot or OlivineTopazGarnetTourmalineHyacinth or JacinthTurquoiseQuartzVarious Precious Stones This interesting list may lead to a more careful watch for precious and semi-precious stones and their names. Most gems are crystals of unusual quality in regard to transparency and color; they are to be looked for in those rocks that have crystallized slowly, or in cavities that have been

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List Non-Metallic Mineral Names

Table of ContentsPyriteGraphiteApatiteFluorsparCryoliteBariteCelestiteAsbestosMagnesiteTalcFeldsparLithium MineralsMicaCorundumGarnetTripoliteRottenstoneFuller’s EarthClayDeposits from Evaporation GypsumSaltPotash SaltsNitrateCoal, Petroleum, Natural Gas A number of minerals are mined because of their use for other purposes than as ores of metals. Some of these minerals are of such importance as to warrant special mention. Pyrite Pyrite, or iron pyrites, FeS2, is found in workable deposits as follows: At or near contacts of

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Pitchblende Uranium Ore

Pitchblende or uraninite, consists mostly of uranium oxides. It is a pitch-black, greenish or brownish black mineral, green or brown when finely powdered; it has a smooth or conchoidal break, and is very heavy. Pitchblende is found in pegmatite dikes, sometimes, as in Cornwall, England, associated with tinstone. Other uranium minerals of similar appearance, euxenite and samarskite, are found in the

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List Metals used in Making Steel Alloys

Table of ContentsTitaniumManganesePyrolusitePsilomelaneChromiumTungstenMolybdenumVanadiumPatroniteCarnotiteRoscoelite Titanium The ores of Titanium are rutile (TiO2), and ilmenite (FeTiO3). Rutile has been found in quantity in gabbro-pegmatite along with apatite; also with ilmenite in anorthosite. The red or reddish-brown crystals (Fig. 39) of rutile are not likely to be overlooked; it is used mostly in electrodes of are lamps. The market price for rutile is 10

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Different Types of Iron Ore

Table of ContentsImpurities in Iron OresHematiteIron Ore FormationOrigin of Iron Ore-BodiesMagnetiteLimoniteSiderite The iron minerals that are at present used as ores are hematite, magnetite, limonite, and siderite; also, occasionally ankerite, goethite, and turgite. Hematite is the most important iron ore.       The iron content of the pure minerals is as follows: Ankerite is a carbonate of lime, magnesia,

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Where to Find Copper, Nickel, and Cobalt Deposits in Canada

Table of ContentsCopperWhere to Find Copper in British ColumbiaWhere to Find Copper in YukonWhere to Find Copper in ManitobaWhere to Find Copper in OntarioWhere to Find Copper in QuebecWhere to Find Copper in New BrunswickWhere to Find Copper in Nova ScotiaNickel and CobaltWhere to Find Nickel and Cobalt in OntarioWhere to Find Nickel in Manitoba Copper Copper ores are found in a great variety

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Where to Find Mercury, Antimony and Arsenic in Canada

Table of ContentsWhere to Explore for Mercury MineralsWhere to Find Antimony DepositsWhere to Find Arsenic Ore Where to Explore for Mercury Minerals The principal ore of mercury is cinnabar, HgS, known by its bright red color (vermilion-red when powdered), its great weight, and its softness. Cinnabar is found in irregular veins, breccia zones, stockworks, and disseminations in rocks of all kinds and

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Where to Find Silver, Lead, Zinc Deposits Canada

Table of ContentsSilverWhere to Find Silver in OntarioWhere to Find Silver in British ColumbiaWhere to Find Silver in YukonLead and ZincOre Minerals of Lead and ZincLead-Zinc Deposits near Igneous IntrusionsWhere to Find Pb & Zn In OntarioWhere to Find Pb & Zn In QuebecLead-Zinc Deposits Independent of Igneous IntrusionsWhere to Find Lead & Zinc In OntarioWhere to Find Lead & Zinc In Quebec Silver

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Where are Gold Deposits in Canada

Table of ContentsPlacer GoldPanningOrigin of PlacersMinerals Associated with GoldOccurrence of PlacersGold in ConglomerateGold Veins and Other Gold DepositsCountry RocksWhere to Find Gold in OntarioWhere to Find Gold in Quebec, Nova Scotia, and ManitobaWhere to Find Gold in BC & NWTAlterations in RocksMineralizationPanning for GoldWhere to Find Platinum Placer Gold Placer deposits of gold are formed by the concentration of the gold from the

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Strike VS Dip Faults

Table of ContentsDirection of MovementStrike FaultDip Fault The complete study of faulting belongs to mining rather than to prospecting. But there are surface results of importance to the prospector. As explained, faulting is due to the breaking of the rock under strain; there has been displacement at the same time, so that the two sides of the break do not fit.

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Sedimentary Mineral Deposits

Table of ContentsMechanical Deposition of Sedimentary Mineral DepositsChemical Deposition of Sedimentary Mineral DepositsOre Deposition by Water from SurfaceWhat minerals are found in Sedimentary Mineral DepositsConcentration of Ore Bodies by WeatheringBy Removal of Valueless MaterialBy Solution of the Valuable MaterialMineral AssociationsRelative Ages of RockTimes of Forming Mineral DepositsGreat Periods of Ore Deposition Mechanical Deposition of Sedimentary Mineral Deposits In some cases, the ore mineral, on

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Vein Mineral Deposits

Table of ContentsVeinsJointsFaultsShear Zones and Crush ZonesCause of FracturesDirection of FracturesHow Minerals Deposit in VeinsDepths at which Veins Have been FormedVeins Formed near the SurfaceVeins Formed at Moderate DepthsVeins Formed at High TemperaturesZones of Mineral DepositsDepths at which Ore Bodies may be FormedFissure VeinsSaddle ReefsShear Zones and Crush ZonesChimneys and StocksFahlbandsContact Metamorphic Deposits Vein Mineral Deposits includes a considerable variety

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