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    Article

    Two modified smoky quartz centers in natural citrine

    Electron paramagnetic resonance (EPR) measurements on natural citrine and greenish-yellow quartz revealed the presence of several localized hole centers adjacent to an aluminium impurity. The g tensors and their...

    D. Maschmeyer, K. Niemann, H. Hake, G. Lehmann… in Physics and Chemistry of Minerals (1980)

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    Article

    New hole centers in natural quartz

    In natural citrines five new hole centers were detected and analyzed by electron paramagnetic resonance. An additional one was observed in rose-colored quartz crystals with radiation defects as the cause of co...

    D. Maschmeyer, G. Lehmann in Physics and Chemistry of Minerals (1983)