Unusual habit of microcline from Alto da Cabeca pegmatite, Parelhas, Rio Grande do Norte, Brazil (CROSBI ID 554627)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Zebec, Vladimir ; Šćavničar, Stjepan ; Wegner, Reinhard ; Bermanec, Vladimir ; Žigovečki Gobac, Željka ; Čobić, Andrea
engleski
Unusual habit of microcline from Alto da Cabeca pegmatite, Parelhas, Rio Grande do Norte, Brazil
The crystals found in Alto da Cabeca pegmatite have a habit characteristic of adularia. Adularia is usually developed in Alpine veins as feldspar of typical habit, in many cases fourlings-combination of Baveno and Manebach twinning. Adularia has a disordered crystal structure, which is the same as in sanidine. But, in Alpine veins, adularia is described in various degrees of ordering. In this case adularia has completely ordered crystal structure.
microcline; pegmatite; Alto da Cabeca; Parelhas; Brazil
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
354-356.
2009.
objavljeno
Podaci o matičnoj publikaciji
Estudos Geológicos
Mariano, Gorki ; de Pinho Guimarães, Ignez
Recife: Universidade Federal de Pernambuco, Centro de Tecnologia e Geociências, Departamento de Geologia
0080-0244
Podaci o skupu
4th International Symposium on Granitic Pegmatites, PEG2009
poster
30.08.2009-02.09.2009
Recife, Brazil