Steacyite is a relatively rare mineral that forms small crystals that are often cross-twinned. First discovered in 1982 in Canada. In Russia, it occurs only in two manifestations: in the Murun massif and in the Khibiny (Kukisvumschorr town). Glows green under UV light. Radioactive.
You can see steacyite stone for sale and buy it in the Minerals of Russia online store.
|Crystal class||Ditetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m)
|Color||Gray, dark brown, green, beige|
|Mohs scale hardness||5|
|Luster||Vitreous, greasy, dull|