| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | orthoclase | geology | Orthoclase is a common mineral in igneous rocks such as granites and pegmatites. | 1 |
| 2 | orthoclase | geology | Orthoclase is a common mineral in igneous rocks such as granite. | 1 |
| 3 | orthoclase | geology | Orthoclase is a common mineral in granite and other igneous rocks, and is used in ceramics and glass-making. | 1 |
| 4 | orthoclase | geology | Orthoclase is a common mineral in igneous rocks and is often used in the production of ceramics and glass. | 1 |