sillimanite in a sentence
n.
📚 Grade Level: Grade 11, Grade 12
Definition
Sillimanite is a high-temperature silicate mineral that serves as an indicator of metamorphic conditions in rocks.
Sample Sentences
- Sillimanite is often found in high-grade metamorphic rocks and is a valuable indicator of temperature and pressure conditions during metamorphism.
- Geologists frequently use sillimanite to determine the metamorphic history of a rock sample.
- The distinct fibrous structure of sillimanite can be observed in thin sections under a polarizing microscope.
- Due to its high melting point, sillimanite is also used in the production of high-temperature ceramics.
- The presence of sillimanite along with kyanite and andalusite in a rock sample can suggest a specific metamorphic environment.