Crystals p 18-19

Human-made Crystals

Natural crystals take a long time to form. People discovered that they can make crystals using special equipment. Human-made crystals cost 10-100 times less than nature made crystals. The first man-made crystals were made in 1837. Cubic Zirconia is a fake diamond. Only an expert can tell the difference between a real diamond and a cubic zirconia.

Crystals p 16-17

All about Diamonds

Well, all diamonds are crystals and are made of atoms. Diamonds mean everlasting love. That is why people put diamonds on their engagement ring. Diamonds are made in an igneous rock called kimberlite. The rock is named after the city with the world's deepest diamond mine, Kimberly, South Africa.Diamonds are also found in Brazil, Australia, India and Russia.

Crystals p8-9

Crystals have habits. It forms the same shape on the outside as it has on the inside unless too much heat or pressure makes the shape different.

Crystals

Crystals are made out of atoms. Diamonds, rubies, sapphire and emeralds are all crystals. Scientists who study crystals are called crystallographers.

Caleb