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.
Famous people of the Romantic Period The Romantic period or Romantic era lasted from the end of the Eighteenth Century towards the mid 19th Century. Romanticism was a movement which highlighted the importance of: The individual emotions, feelings, and expressions of artists. It rejected rigid forms and structures.