Quartz buffalo

eye - czerwonobrunatna or brown, opaque v ariety of quartz, which exhibits optical effects feline eye in th e form of transferring to, belts migotliwości. This effect produ ce highly oxidized wrostki fibrous crocidolite, less crossytu or tremolitu. In bawolim eye quartz minerals were replaced by iron oxides and hydroxides - mostly hematite and goethytu. Quartz buffalo eye usually coincides with the quartz tygrysim eye, from which, however, is much rarer.