NGT31-01
1953, 1953
Euclase from Iveland, occurring as an alteration product of Beryl.
31
1-5

Pseudomorphs of beryl from the HovÄsep feldspar quarry, Eptevann in Iveland, consist mainly of bertrandite and muscovite aud contain in subordinate amounts a mineral identified as euclase by an optic and X-ray examination.