Tag: GeoPicture

Evitachoel / Pixabay For all its beauty, amethyst is a fairly common variety of quartz. This ...

This image shows, in false color, the region around Gale Crater on Mars. It was taken by the 2001 Mars Odyssey spacecraft ...

Crinoids are marine animal (not plants) that have been around since the late Cambrian, some 500 million years ago. Crinoids usually ...

Image via Reddit.

This picture of fossilized crinoids was taken at the Sternberg Museum of Natural History, in Hays, Kansas. Crinoids are marine ...

Mimetite, whose name derives from the Greek which means "imitator" is not really like any other mineral I've seen. It's ...

This is a Cast of an original fossil of a Meganeuridae. If you're scared of dragonflies, brace yourself for this: ...

Full resolution here - it works this time, I promise. Believe it or not, this is ...

  Elbaite is a type of tourmaline, a sodium, lithium, aluminium boro-silicate. Cleavelandite is a type of albite feldspar.

This week, there's not going to be a picture, but rather a series of picture, because you just can't sum ...

Mount Fiji This is "just" a view of Mount Fuji - the highest mountain in Japan, actually a ...

In geology, folds are formed when originally horizontal layers of sedimentary rocks are bent and/or curved as result of acting ...

Crocoite is a fairly rare mineral in many parts of the world, consisting of lead chromate, PbCrO4. The relative rareness comes ...

What you are looking at is a picture of a baryte crystal growing on fluorite; the two minerals have not ...

This week's picture shows the Eurasian and the American tectonic plates, as seen from underwater. In a way, you could ...