For tripartite states there is still no general tool to discriminate between separablility and different types of entanglement. Some special entanglement measures, adjusted to the usage for multipartite system were studied, and especially applied to generalized GHZ and W states. States with entangled entanglement and some of their corresponding geometrical structures are examined. Similar to the magic simplex in the two qubit case the geometrical structure of simplices plays an important role in the investigation of relations, symmetries and entanglement properties of tripartite qubit states....