Other Free Encyclopedias » 21st Century Webster's Family Encyclopedia » 21st Century Webster's Family Encyclopedia - Ghibellines to Grand Prix

Gneiss

Gneiss, crystalline metamorphic rock, made up of quartz, feldspar, and mica combined in different proportions to produce distinct layers. Blocks of gneiss are sometimes used to pave streets.

Gnosticism [next] [back] Gnatcatcher

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or