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.
The History of the 1920âs Charleston Dance. The Charleston is a dance that became popular in the 1920âs, during the era of jazz music, speakeasies and Flappers. The Charleston was danced to ragtime jazz music in a quick-paced 4/4 time rhythm, the dance quickly become a craze around the world.It was a physical representation of the uninhibited enthusiasm many of the young people of that generation wanted to express.he Charleston dance was particularly popular with the Flappers, rebellious young women of the 1920âs known for wearing short dresses, bobbing hair and listening to Jazz music â all considered scandalous.