Because of the result obtained with wedsleyite, those from studies of ringwoodite are rather similar. Ringwoodite like wedsleyite it a transition zone mineral. So this minerals would be expected to act in a surprising way. But in the current data ringwoodite appear to behave more like olivine. There are a number of possible causes of these findings. Firstly it is possibility that the simple tested is not in fact ringwoodite, but actually some other mineral, one possibly from the olivine group. Although this is unlikely composition analysis is being carried out to verify the identity of the sample material. A second likely is that the multi-anvil needs to be recalibrated. This seems the most possible cause of the problem. Therefore it will be checked immediately.