Images
Formula: Sr2Al(CO3)F5
Compound halide, strontium-bearing mineral
Crystal System: Monoclinic
Specific gravity: 3.86 measured, 3.847 calculated
Hardness: 3½
Streak: White
Colour: Colourless, white
Environments
Localities
At the type locality, the Ivigtut mine, Arsuk Fjord, Sermersooq, Greenland, stenonite occurs in small grains
or crystals up to 4 x 1 cm, mainly in the contact zone between
siderite-cryolite ore and masses
rich in fluorite. It is closely associated with
jarlite, which may replace it; also associated with
siderite, cryolite,
fluorite, weberite,
jørgensenite,
thomsenolite, gearksutite,
pachnolite, prosopite,
topaz, hydrokenoralstonite,
muscovite, baryte,
quartz,
pyrite, sphalerite,
chalcopyrite and galena
(AM 48.1178, HOM, Mindat).
Back to Minerals