Siim Sepp, 2005
Diameter of rock sample is app. 20 cm.
Rock name is tinguaite (variety of phonolite) and it is from Sweden. Dark needle-like minerals are aegirine phenocrysts.
I, the author of this work, hereby publish it under the following license:
|
Viited pildile
Sellele pildile viitavad järgmised leheküljed: