Feldspar (Noun)
Meaning
Any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium.
Classification
Nouns denoting substances.
Examples
- The geologist carefully extracted a sample of feldspar from the granite rock face for further analysis.
- Feldspar is a common mineral found in igneous rocks and is often used as a flux in the manufacture of ceramics.
- The feldspar crystals in the pegmatite were a striking pink color due to the presence of manganese impurities.
- The mineralogy of the region was characterized by the presence of feldspar, quartz, and mica in the metamorphic rocks.
- The feldspar content of the soil was high, which made it difficult to grow certain types of crops due to the low pH levels.