Thread: Rock Dust?
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Old March 30, 2015   #34
RayR
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Join Date: Jun 2010
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Quote:
Originally Posted by jhamilton1208 View Post
New guy here... But isn't rock dust the same as sand? So wouldn't it be like throwing greensand in your garden? In a way I mean..
Sand is mostly quartz, it's an inert crystalized silica so it's not the same as rock dusts or greensand. Greensand is a silicate too but it contains potassium and iron which will break down over a long period of time. Rock dusts are from weathered volcanic deposits (like Azomite) or sedimentary deposits or contain both like glacial rock dusts. Rock dusts generally contain a wide variety of trace minerals.
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