The green shale purity shown on your website is about 85%. I want to know what is the other 15% mineral that I could separate the illite from the other mineral?
WARDSCI.com associatePublished 08/15/2017
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Ward's® Illite Shale
SpecimensRock SpecimensSedimentary Rocks
Green shale which contains approximately 85% Illite.
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