pegmatite
/ˈpɛɡmətʌɪt
/noun Geology
A coarsely crystalline granite or other igneous rock with crystals several centimetres in length: tourmaline occurs mainly in granites, pegmatites, and greisens [mass noun:, as modifier]: pegmatite dykes...
- It has also been found as a constituent of granites and in granitic pegmatites.
- Apatite is the most common phosphate mineral found in granitic pegmatites.
- Ed would drill by hand and blast away the rock, exposing the pegmatite.
Origin
Mid 19th century: from Greek pēgma, pēgmat- 'thing joined together' + -ite1.
- compound eye
- compound fraction
- compound fracture
- compound interval
- compound leaf
- compound noun
- compound number
- compound sentence
- compound time
- comprador
- compradore
- comprehend
- comprehensibility
- comprehensible
- comprehensibly
- comprehension
- comprehensive
- comprehensively
- comprehensiveness
- compresence
- compresent
- compress
- compressed air
- compressibility
- compressible