stripes
Occurrence number:
174-00-047
Country:
United States
Region:
California
Location:
Longitude: -122.7, Latitude: 38.43
Carbonatite:
No
A peralkaline rhyolite from Santa Rosa with phenocrysts of sanidine, anorthoclase, quartz and aenigmatite in a groundmass of quartz, sanidine, mossy patches and needles of arfvedsonite and minor aegirine, is illustrated in Williams et al. (1954, p. 127).
References:
WILLIAMS, H., TURNER, F.J. and GILBERT, C.M. 1954. Petrography: an introduction to the study of rocks in thin section. W.H. Freeman, San Francisco. 406pp
Location: