adjective
- containing or composed of feldspar
Usage: geological; technical
Examples
- The feldspathic sandstone contained visible grains of feldspar minerals.
- Geologists identified the feldspathic composition of the igneous rock sample.
- The feldspathic arkose was rich in quartz and feldspar fragments.
- Feldspathic rocks are common in areas with granitic bedrock.
- The soil developed from feldspathic parent material was particularly fertile.
- Microscopic analysis revealed the feldspathic nature of the sediment.