Acuminite
IMA number:IMA1986-038Database ID:785
IMA chemistry
SrAlF4(OH)·H2O
Valence chemistry
SrAlF4(OH)·H2O
Классификация
Crystal systems
Моноклинная
Space groups
C2, c
IMA symbol
Acu
IMA status
Approved
Structural group
Tikhonenkovite
Status notes
Pauly H, Petersen O V (1987) Acuminite, a new Sr-fluoride from Ivigtut, South Greenland. Neues Jahrbuch für Mineralogie, Monatshefte 1987, 502-514
Country
Denmark (Greenland)
Published
1986
Oldest age Ma
1 275
Paragenetic modes
AbioticPrimaryStage 4a: Earth's earliest continental crustPM25 - Evaporites (prebiotic)