Beautiful metamorphic gneiss, 400 million years old, and it came from Northern Europe. (upbeat music) (upbeat music) Full day of hiking today, Yellow Aster Butte Hiking Trail and Mount Baker volcano.

Gneiss is a metamorphic rock composed of bands and lenses of various minerals, according to Geology.com. "Our candidates for the oldest U.S. rock are ancient gneisses with complex histories.

Gneiss is a metamorphic rock composed of bands and lenses of various minerals, according to Geology.com. "Our candidates for the oldest U.S. rock are ancient gneisses with complex histories.

What they were after was a type of metamorphic rock called gneiss (pronounced “nice”). It forms when igneous rocks like granite undergo intense heat and pressure, changing their structure and ...

Pyrope-quartzite of Dora-Maira. This rock is called also whiteschist, as it appears as large white lenses interbedded in more common gneiss, only to be found in the Dora-Maira-Massif, Western Alps.

Rumbling Bald Mountain features cliffs of metamorphic gneiss rock with beautiful marbled faces and exceptional botanical diversity. Located 30 miles east of Asheville in Chimney Rock State Park ...

The Rock Cycle is Earth's great recycling process where igneous, metamorphic, and sedimentary rocks can all be derived from and form one another. Analogous to recycling a Coke can, where an old ...

IN 1863 Dr.T. Sterry Hunt pointed out the resemblance of some specimens of rocks and minerals from Donegal which he had examined to those of the Laurentian series of North America. These rocks and ...

Banded with colorful, unique garnets, the gneiss — a form of metamorphic rock — was pushed as far as rock can go before it melts, to 1,800 degrees Fahrenheit (1,000 degrees Celsius ...