Andalusite Definition

ăndə-lo͝osīt
noun
A hard, grayish white to pinkish brown mineral (Al2 SiO5 ), occurring as nearly square prisms, often with cruciform cross sections, in metamorphic rock.
American Heritage
A very hard, orthorhombic silicate of aluminum, Al2SiO5, usually found in schist, slate, or other metamorphic rocks and used to make various high-temperature materials and as a gem.
Webster's New World

(mineralogy) An aluminium nesosilicate mineral, Al2SiO5.

Wiktionary

Origin of Andalusite

  • After Andalusia

    From American Heritage Dictionary of the English Language, 5th Edition

Andalusite Sentence Examples

  • Those rocks which contain andalusite and staurolite are sometimes found in such associations as show that they are due to contact action by intrusive igneous masses.

  • In these spotted slates andalusite, chiastolite, garnet and cordierite often occur; chiastolite is especially characteristic; cordierite occurs only where the alteration is intense.

  • Staurolite is partly enveloped by large andalusite, which could have nucleated at similar time to staurolite.