SiO2-phases

Project GPF170/2013 – Mineralogical characterization of SiO-phases occurring in the region of village Nanovitza, Eastern Rhodopes, Bulgaria – Chief assist. prof. N. Tzankova (project leader), Assoc. prof. R. Pazderov, Assist. prof. L. Mihailov, V. Popova (student), G. Metodieva (student), M. Matova (student).

Carnelian

Chalcedony4_2

 

 

 

SiO2-phases and host rocks

Chalcedony5

 

 

 

SiO2-phases and host rocks

Chalcedony6

 

 

 

SiO2-phases and host rocks

Chalcedony7

 

 

 

SiO2-phases and host rocks

Chalcedony9

 

 

 

SiO2-phases and host rocks

Chalcedony10