Olivine has the formulae (Mg,Fe)2SiO4 and a relative hardness of 7. It's name is derived from the characteristic olive green colour. A common rock forming mineral. A clear green variety is called peridot and has some uses as a gem.
Hear it on YouTube. Here's a piece that many people know, and rightfully so! This famous classical piece from the romantic period is one of those pieces that has the ability to make anyone feel happy. Composed in the 1920s, for a ballet, the piece was an instant success.
Instruments Used in the Romantic Period. The Romantic period covers artistic contributions from the 1800s to the early 1900s. The music of this period came from some of the best-known and most memorable composers, including Frederic Chopin, Richard Wagner and the later works of Ludwig van Beethoven.