noun
- Plural of andalusite; a mineral composed of aluminum silicate, typically found in metamorphic rocks and used in refractory materials.
Usage: technical; mineralogy
Examples
- Andalusites are commonly found in schist and other metamorphic rocks.
- The geologist identified several andalusites in the rock sample under the microscope.
- Andalusites are valued in the ceramics industry for their heat-resistant properties.
- These andalusites formed under high-temperature, low-pressure metamorphic conditions.
- The refractory bricks contained andalusites to improve their durability at high temperatures.