Stewartite Visible Spectrum (300 - 1200 nm)

Stewartite stewartite is a yellow to yellow-orange hydrated ferric phosphate, MnFe2(PO4)2(OH)2´8H2O. Stewartite contains linear chains of ferric ions bridged by one OH group and one sulphate group. Absorption bands are enhanced when the polarization direction is in the direction of the chain.

Stewartute Structure

The stewartite absorption spectrum

Link a reference to the stewartite spectrum


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updated 20-Feb-2024