Charles Darwin Collection

The Charles Darwin Collection - a collaboration between the Open University and the Sedgwick Museum.

Access the digital thin sections on the Open University's Virtual Microscope for Earth Sciences Project website.

Rock TypeRock Class PrimaryRock Class
Altered granite in contact with schistMetamorphicMagmatic
Amygdaloidal monchiquiteIgneousVolcanic
Andesite - James IslandIgneousMagmatic
Arenite sandstone - Falkland IslandsSedimentaryClastic
Carbonate cemented dunite brecciaIgneousVolcanic
Carbonated palagonite tuffIgneousVolcanic
Conglomeratic obsidianSedimentaryClastic
Cordierite biotite slate hornfels - Wollaston IslandMetamorphicMetapelite
Diorite - Magellan StraitsIgneousMagmatic
Essexitic olivine basaltIgneousVolcanic
Feldspathic sandstoneSedimentaryClastic
Foraminifera limestoneSedimentaryCarbonate
Garnet-biotite augen gneissMetamorphicMetapelite
Grossular-epidote-prehnite skarnMetamorphicMarble / Calcsilicate
Grossular-prehnite skarnMetamorphicMarble / Calcsilicate
Hornblende porphyrite - Blue MountainsIgneousMagmatic
Hornblende porphyrite - ValparaisoIgneousMagmatic
Hornblende schistMetamorphicMetabasite
Myrmekitic granulite/charnockiteIgneousMagmatic
Nepheline basanite with iddingsiteIgneousVolcanic
Phonolite - Cape Verde IslandsIgneousVolcanic
Porphyritic olivine basalt - MauritiusIgneousVolcanic
Rhyolitic welded tuff - Port DesireIgneousVolcanic
Trachyte - James IslandIgneousVolcanic
Trachyte - Saint HelenaIgneousMagmatic
Trachyte - TerceiraIgneousMagmatic
Volcanic and calcareous sandstoneSedimentaryClastic
Welded Tuff - LimaIgneousVolcanic

Developing Digital Teaching & Learning Resources for the Virtual Microscope