Description Tufa of Tristan da Cunha. Clastic grain of olivine crystal, certain outlines (a) exhibiting crystallographic contours bordered by black glass.
Plaats: Tristan da CunhaAuthor Anoniem in Renard (1888)JPG file - 93.52 kB - 614 x 479 pixelsadded on 2012-07-16508 viewsFrom reference Renard, A. (1888). Report on the rock specimens collected... (page 86)