...
| coloured clinopyroxen cristals, fine grained basaltic microlithic |
|
Bright field |
| Dark field |
Sample number | Collector | Date of sampling |
---|---|---|
heubeck0086 | Prof. Walter Franke, Freie Universität Berlin | ca. 1980 |
Comments:
high textural maturity, but mineralogical immature; contains small amounts of magnetite the cliffs and beaches of the Canary Islands are renowned for the presence of mafic minerals