Glaukonit
German
Etymology
Coined in 1828 by Christian Keferstein, from Ancient Greek γλαυκός (glaukós, “blue-green”) + -it.
Noun
Glaukonit m (strong, genitive Glaukonits, plural Glaukonite)
- glauconite (a dull green, often granular, mica-group mineral, a hydrous phyllosilicate of iron and potassium)