·Your results may vary but the bottom line is that rock identification apps are often inaccurate as they rely only on the visual identification of the stone Where Do I Check My Data When I was in my early teens and without internet access I used books to help me identify stones I still do in unfamiliar areas usually purchasing an individual
Complete with photos and information about each rock s distinguishing characteristics this rock identification guide has been designed to assist you in identifying the rocks provided in the Deeper and Deeper and Mining Matters II kits This guide also includes information about how each rock was formed the location from where they were collected and their uses in
·Gold analyses were compiled for about 50 rock types of which more than 50 percent are igneous about 30 percent are sedimen gold in the iron sulfide droplets which separated later The lowest average gold content for granites ppb has been reported by Anoshin and Potap yev 1966
These color changes can be an indicator of gold because gold often occurs in altered rocks or along rock contacts 17 Iron Staining & Gossans Not all veins produce much quartz Gold bearing veins can consist of calcite or mostly sulfides—which often weather into iron stained spots when the pyrites convert to iron oxides
·Gold has been found in alluvium altered ultramafic rocks listvenite banded iron formations and Sn W Mo bearing granites according to Ref 10 but the most common deposit types are a gold
·Identifying Gold Bearing Areas To successfully find gold it s essential to understand the types of environments where gold is likely to be found Rock Types Greenstone Belts These ancient volcanic regions are often rich in gold Examples include the Abitibi greenstone belt in Canada and the Yilgarn Craton in Australia
·Here are some of the most popular rock identification tools available Smithsonian Handbooks Rocks & Minerals This book is the most useful I have found for help in identifying rocks and minerals It has gorgeous pictures and nice descriptions of hundreds of rocks and minerals The only drawback to a book like this is that it can
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