Tephritic Phonolite Hand Sample Photos. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.

Tephritic Phonolite Hand Sample

tephphonhs_001. Tan colored tephritic phonolite from Schloss Olbrück, Brohlthal, Germany with dark, euhedral nosean phenocrysts several mm across. Krantz Collection, Smith College sample K-77.