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Jones riffle

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Jones riffle [′jōnz ‚rif·əl]
(mining engineering)
An apparatus used to reduce the size of a sample to a desired weight; consists of a hopper which passes samples to a series of open-bottom pockets, each of which divides the sample into two equal parts, and the next pass of each part gives a quarter of the original sample, and so on until the desired sample is obtained.
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35 millimetres), split using a standard Jones riffle splitter to a nominal 250 grams sample and pulverized to a nominal minus 150 mesh (0.
Eaglecrest Explorations Ltd.: Bulk Sampling Gold Grades Significantly ... by Business Wire
35 millimetres), split using a standard Jones riffle splitter to a nominal 250 grams sample and pulverized to a nominal minus 150 mesh (0.
Eaglecrest Explorations Ltd.: Bulk Sampling Intersect Additional ... by Business Wire
35 mm) reduced in size using a standard Jones riffle splitter to a nominal 200 - 250 gm sample, then pulverized to a nominal minus 150 mesh (0.
Eaglecrest Explorations Ltd.: Diamond Drilling Connects Dilation ... by Business Wire
 
 
 
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