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What Is The Difference Between White And Grey Pumice Stone?
a. Gray pumice contains abundant broken crystal fragments and lithic fragments. Broken crystals and incorporated white pumice indicate passage through the primary magma reservoir. Incorporated lithic fragments indicate breakage of wall rock and creation of new transport pathways.
The Differences Between Scoria and Pumice
Scoria and
Types of Filter Media for Aquarium || Mechanical || Biological || Chemical
Types
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