augengneiss
/ˈaʊ̯ɡənˌnaɪ̯sɪz/
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
13
Scrabble Score
11
Letters
2
Syllables
7
Unique Chars
Meaning
noun
A type of metamorphic rock characterized by large, lenticular mineral grains or crystal aggregates (usually feldspar or quartz grains that have been deformed during metamorphism), resembling eyes, embedded within a finer-grained matrix.
Countable; Uncountable
Example Sentences
- "The term ‘Augengneiss’ has a definite use in German petrography, and is properly used to denote those gneisses "in which single large felspar-masses (orthoclase), in form ranging from the blunt lenticular to the approximately spherical, occur, segregated from the matrix of the rock which possesses a schistose (schieferig) or coarse grained (flaserig) structure, and around which the mica-laminæ adhere.""
- "Rocks of this migmatitic formation, having a smaller quantity of neosome, are augengneisses."
- "In the Canigou Massif the group’s metasediments together with the gneisses and the augengneisses were folded into a gigantic flat-lying isoclinal fold."