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Using a Field Spectrometer for Diatomite Exploration

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Using a Field Spectrometer for Diatomite Exploration

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Diatomite, a siliceous sedimentary rock, is composed mainly of the fossilized skeletal remains of diatoms-single celled organisms related to algae. With a porous structure, diatomite is used for insulation, as a filtration medium, a filler in paints and coatings, and as an absorbent for industrial spills and pet litter. Dry diatomite has the appearance of chalk but is much lighter and chemically inert. Opal-CT is an essential mineral for diatomite. Diatoms are composed of amorphous colloidal silica-the Opal A phase of silica mineralogy. Opal A becomes unstable and changes diagenetically into Opal-CT.

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