NGT30-02
1952
Diffusjonsreaksjoner mellom pyritt og hematitt i finkornig sandstein
30
5-12

A peculiar reddish sandstone containing light greenish ellipsoids is investigated. It is concluded that the ellipsoids have been formed during the metamorphism by reactions between pyrite and haematite of the original sediments. The red.-ox.-reactions have been investigated from an energetical point of view.

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