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Geochemistry, Mineralogy, Petrology & Volcanology
(1029 entries)
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Black Frozen Fire: one-year old lava flow at Fagradalsfjall (Iceland)
by Claudia Wieners
Wannabe cubic calcite
by Joanna Dziadkowiec
Nature loves rainbows - Yellowstone N.P.
by Silvia Favaro
Mud volcano, bubbling lake
by Renaud Toussaint
Mud volcano, Gobustan, Azerbaïdjan, slow clay extrusion
by Renaud Toussaint
Mud volcano lake, Gobustan, Azerbaidjan, methane bubbles
by Renaud Toussaint
Morning view of volcanoes in Java, Indonesia
by Naveen Ragu Ramalingam
Vaporising waterfall gap within rocky mountains
by Maria Salama
Pigeon Rocks of Lebanon
by Maria Salama
Giant rock of the White Desert
by Maria Salama
Fighting the tides: blocks get lost first
by Anne Sturm
Walking on uneven ground: in the middle of a lava flow, Valle del Bove, Etna
by Anne Sturm
Bermuda Grotto at Low Tide
by Josue G Millan
Tokaj Nagy Hill, Hungary
by Nhung Thi Ha Pham
Frozen dripping lava in a lava cave
by Ágnes Király
A hand sample of ferruginous sandstone
by Metwally Hamza
A specimen shows manganese dendrites
by Metwally Hamza
A thin section in pumice extrusive/volcanic igneous rock
by Metwally Hamza
A thin section contains a wide variety of mineral grains
by Metwally Hamza
An euhedral crystal (the biggest one in the photo) in groundmass matter
by Metwally Hamza
A thin section shows a coarse plagioclase mineral grain
by Metwally Hamza
A thin section in gabbro igneous rock, containing most beautiful colorized mineral grains
by Metwally Hamza
Basalt colums at Reynisfjara
by Sarah Weick
Mud Volcanoes rising to the surface
by Sarah Weick
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