Untitled Document

1999 Annual Report


    Fibrous wollastonite

    Fibrous wollastonite (cream coloured needles) produced by the decarbonation reaction between quartz (golden) and calcite (fawn) under hydrothermal conditions. The quartz grain is about 15 micrometres wide.

    Photo: Shuqing Zhang and Harri Kokkonen

 

 

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