الوصف

Andalusite is an aluminum silicate, closely related to both silimanite and kyanite, Andalusite has a very distinct combination of colors, and a very pronounced level of pleochroism, which results in the exhibition of different colors when viewed from different angles.



In the world of minerals, andalusite is known as an alumino- silicate (Al2 SiO5), and is very similar to the other commercially-exploited minerals of silliminite and kyanite One of its uses is in the manu-facture of spark-plug ceramics. However, the steel your car is made of, most probably, was manufactured in a furnace or ladle lined with andalusite refractory bricks.