(1−3) Obsidian is characterized by its rigid, glassy composition with a brittle and amorphous texture, featuring razor-sharp edges due to the rapid cooling of silica-rich felsic igneous rocks (making ...

After spending well over a decade writing for other game studios and projects, the lead writer for the timeless RPG Fallout New Vegas is back at Obsidian. While that’s excellent news for ...

Igneous intrusions are a type of rock feature. They form when molten rock cools below the surface of the Earth. Join Isla and Connor as they explore igneous rock landscape features at Traprain Law ...

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.

An igneous rock has come to be regarded, more constantly than before, not merely as a mineral-aggregate, but as-the product of consolidation of a molten rock-magma; and consideration has been ...

Igneous rocks close igneous rockIgneous rocks are those which have been formed by the cooling and solidification of molten rock (magma) from underneath the earth’s crust. are formed by magma ...