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Peter Knudson

Peter Knudson


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Peter Knudson will need to approve that you worked on “Turquoise is an opaque” before we add you as a collaborator.

Turquoise is an opaque

Turquoise is an opaque, blue-to-green mineral that is hydrated phosphate of copper and aluminum, with the chemical formula CuAl6(PO4)4(OH)8·4H2O.Want to read more? here is the link:

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