fourfold rotary inversion axis in c. Example: the meteorite mineral schreibersite (Fe,Ni)3P. 5 4/m, tetr.-dipyramidal:...of gypsum have been found in caves in Chihuahua, Mexico, where they formed by solution of anhydrite rock...Indonesia (160 t), Peru (130 t), Ghana (130 t), Mexico (110 t), Uzbekistan (100 t), Kazakhstan (100 t)... . Fig. 4.6 Cosmic nickeliron, (Fe,Ni). Iron meteorite (octahedrite) from Joe Wright Mountain, Arkansas...(7 Chap. 31; 7 Sect. 32.2). The biggest iron meteorite so far known has a weight of about 60 t and is |