Ringwoodite Visible Spectra (350 - 1050 nm)

Ringwoodite, ideally, Mg2SiO4is well known as a synthetic mineral and also has been found as a naturally occuring phase. It often has a blue color as seen in this synthetic ringwoodite, sample SZ9901 from Smyth et al. (2003).  The color comes from Fe2+-Fe3+ intervalence charge transfer.

The ringwoodite absorption spectrum


Link to references about the spectra of ringwoodite

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