It is an extrusive igneous rock comprised of feldspar and quartz, endemic to volcanic regions. Several dozen localities have been studied by geologists, each distinct with its own chemical ...

The Perseverance rover finds a mysterious black rock on Mars, “Skull Hill,” which intrigues scientists because of its possible origin.

Rock gardens and gravel paths are popular landscaping choices for homeowners. They do a great job of making an outdoor space look more polished and intentionally designed. However, these landscaping ...