The difference between carnelian and red agate

Red chalcedony and red agate are different in appearance and properties.

1. Appearance: carnelian is usually dark red or blood red, with fine texture, high permeability and luster; Red agate, on the other hand, is red or reddish brown with delicate texture but relatively opaque.

2. Composition: The main component of carnelian is silicon dioxide, which contains a small amount of iron oxide to make it red; The main components of red agate are silicon oxide and trace iron oxide.

3. Hardness: the hardness of carnelian is between 7 and 7.5, which is relatively high, so it is more wear-resistant; The hardness of red agate is 7, which is relatively hard.

4. Use: Agate is often used to make jewelry in decoration, such as necklaces and bracelets, and can also be used to make handicrafts; Red agate was often used to make seals and amulets in ancient times, but it is often used to make jewelry or decorations in modern times.

To sum up, carnelian and red agate are different in color, composition, hardness and use.