parallel to the c axis and sit in large channels created by the linked aluminum and silicon tetrahedral ringed structure, the main property of zeolites that allow for their absorption and dehydration abilities. Physical Properties Partheite’s habit is fibrous and radial and is rarely found in distinct crystals. Depending on where it is found, partheite can have transparent a white color or dark blue color but has a white streak regardless of which specimen is used. It has a vitreous luster and cleavage plains at {100} {110} {010} with a hardness of 4 on the Mohs scale. Its space group is C2/c with a = 21.59(3), b = 8.78(1), c = 9.31(2) Å. β = 91.55(2) and Z = 4. The mineral has not yet been found to twin. Geologic Occurrence Partheite was first found in rodingitic veins along with prehnite, thomsonite, and augite in the Taurus Mountains in Doganbaba, Turkey in an ophiolite zone. It has also been found in gabbro-pegmatite in Denezhkin Kamen, Urals, in what is now the Russian Federation. Partheite’s crystallization is associated with the process of rodingitisation. Rodingites refer to garnetized gabbros. Naming The namesake of parthéite is Erwin Parthé (1928–2006), Professeur Honoraire at the University of Geneva and Honorarprofessor für Strukturchemie at the University of Vienna. After completing his studies in chemistry at the University of Vienna, the Austrian born crystallographer went on to teach and conduct research in crystal chemistry for the next 52 years until just before his death in 2006. In 1991, the American Minerals, Metals & Materials Society presented him with the William Hume-Rothery Award. At the time of Partheite's discovery and naming, Parthé was Professor of the “Laboratoire de Cristallopgraphie aux rayons X” at the University of Geneva, Switzerland. See also List of minerals List of minerals named after people References Tectosilicates Monoclinic minerals Minerals in space group 15