2. Gold-laden water heated by magma-molten rock-in Earth& 39;s shallow crust forms a variety of lode gold deposits. Hydrothermal-hot water-fluids rich in sulfur form gold ores in rocks of active volcanoes. The deposits of Summitville Colorado are an example. 3. Gold minerals form in hot rocks in and around volcanoes.Establishing thE ProcEss MinEralogy of gold orEsgold ores can be classified into 11 types Table 1 . Some metallurgical impli ions to these gold ore types are summarised below: Placers quartz vein gold ores and oxidized ores: Generally placers quartz vein gold ores and oxidized ores are free-milling and gold can be recovered by gravity and/or direct cyanide leaching.Ores And Minerals - Definition Types and Differences with Ans: Ore is the rock from which the metal is extracted in a convenient and economical way. Ore has a composition that is definite. Metals that occur naturally in the earth’s crust are called minerals. Minerals that can profitably be used to get the metal are called ores. 2. What are the different types of ores?Types of Ore Deposits - Mineral Processing and MetallurgyA List to some Major Types of Ore Deposits and a link Book Download. Komatiite-associated nickel deposits Layered mafic-ultramafic intrusion deposits Skarn deposits Fractionated granitoid-associated deposits Porphyry-associated deposits Iron oxide copper gold deposits Syn-deformational hydrothermal and replacement deposits Orogenic gold deposits Carbonate-hosted stratabound lead-zinc deposits
Metallurgical ContentGold Deposit Class 1Gold Deposit Class 2Gold Deposit Class 3Gold Deposit Class 4Gold Deposit Class 5Gold Deposit Class 6Gold Deposit Class 7Gold Deposit Class 8Gold Deposit Class 9Gold “Deposit” Class 10 Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous porphyry dykes sills and stocks ImagesMore results in imagesGold Ore - an overview ScienceDirect TopicsThere are two major groups of arsenical gold ores of economical value. These are the massive base metal sulphides with arsenical gold i.e. the lead–zinc Olympias deposit Greece and arsenical gold ores without the presence of base metals. Massive base metal arsenical gold ores are rare and there are only a few deposits in the world.The process mineralogy of gold: The classifi ion of ore The principal gold minerals that affect the processing of gold ores are native gold electrum Au-Ag tellurides aurostibite maldonite and auricupride. In addition submicroscopic solid solution gold principally in arsenopyrite and pyrite is also important.Chris Ralph& 39;s Gold Prospecting Encyclopedia: Information Here is the basic info and history of some of the world& 39;s largest and most productive gold regions. Learn about the geology gold rush history and other essentials of the greatest gold bearing regions on the planet. Ore and Nuggets Specimen Pages Interested in seeing some good photos of what different types of ore look like?