richterite
/ˈrɪktərʌɪt/Mineralogy
noun
A ferromagnesian mineral of the amphibole group, occurring as elongated brown, yellow, red, or green crystals.
- Richterite is a silicate of sodium, calcium, magnesium, and (usually) iron (ii), Na2Ca(Mg,Fe)5Si8O22(OH)2; it was formerly thought to contain manganese. Crystal system: monoclinic..
Origin
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From the name of H. Theodor Richter, German metallurgical chemist + -ite, after German Richterit.
- waterbock
- waterbody
- water boiler
- waterbok
- water bomb
- water bomber
- water bombing
- waterboot
- waterborne
- water bottle
- water bouget
- water-bound
- water boy
- waterbrash
- water breach
- water break
- water-breaker
- water breather
- water-breathing
- water bridge
- waterbuck
- water budget
- water buffalo
- water bug
- water bull