Access the digital thin sections on the Open University's Virtual Microscope for Earth Sciences Project website.
| Rock Type | Rock Class Primary | Rock Class |
|---|---|---|
| Altered granite in contact with schist | Metamorphic | Magmatic |
| Amygdaloidal monchiquite | Igneous | Volcanic |
| Andesite - James Island | Igneous | Magmatic |
| Arenite sandstone - Falkland Islands | Sedimentary | Clastic |
| Carbonate cemented dunite breccia | Igneous | Volcanic |
| Carbonated palagonite tuff | Igneous | Volcanic |
| Conglomeratic obsidian | Sedimentary | Clastic |
| Cordierite biotite slate hornfels - Wollaston Island | Metamorphic | Metapelite |
| Diorite - Magellan Straits | Igneous | Magmatic |
| Essexitic olivine basalt | Igneous | Volcanic |
| Feldspathic sandstone | Sedimentary | Clastic |
| Foraminifera limestone | Sedimentary | Carbonate |
| Garnet-biotite augen gneiss | Metamorphic | Metapelite |
| Grossular-epidote-prehnite skarn | Metamorphic | Marble / Calcsilicate |
| Grossular-prehnite skarn | Metamorphic | Marble / Calcsilicate |
| Hornblende porphyrite - Blue Mountains | Igneous | Magmatic |
| Hornblende porphyrite - Valparaiso | Igneous | Magmatic |
| Hornblende schist | Metamorphic | Metabasite |
| Myrmekitic granulite/charnockite | Igneous | Magmatic |
| Nepheline basanite with iddingsite | Igneous | Volcanic |
| Phonolite - Cape Verde Islands | Igneous | Volcanic |
| Porphyritic olivine basalt - Mauritius | Igneous | Volcanic |
| Rhyolitic welded tuff - Port Desire | Igneous | Volcanic |
| Trachyte - James Island | Igneous | Volcanic |
| Trachyte - Saint Helena | Igneous | Magmatic |
| Trachyte - Terceira | Igneous | Magmatic |
| Volcanic and calcareous sandstone | Sedimentary | Clastic |
| Welded Tuff - Lima | Igneous | Volcanic |