Crystals

Crystals are a type of rock. They are pretty and colorful. They can be bigger than a human being.Here is a chart of Birthstones for every month.Snowflakes are made of millons of tiny crystals.But evry snowflake has a different design because the tiny crystals are arranged diffrently in each snowflake. Here is a chart of Birthstones for every month http://www.weddingguideuk.com/articles/planning/g/birthstones.gif  And here is a chart about crystals http://www.bestcrystals.com/crystals2.html