Garça Branca dam tunnel, Anchieta, Santa Catarina, Brazil
Nice crystals Analcime on vesicular Basalt matrix; Photo and collection Fernando Brederodes.
Single crystal Analcime on matrix; Photo and collection Fernando Brederodes.
Crystals Analcime on vesicular Basalt matrix.
View work area in 2016; Photo by Mauricio Fenilli.
Tunnel entrance area in 2016; Photo by Mauricio Fenilli.