Mineral Information and Data:

Atlasovite
Cu2+6Fe3+Bi3+O4(SO4)5 • KCl [CNMNC approved formula]

Named for Vladimir Vasil’evich Atlasov (1661/1664-1711), Russian traveller who first explored the Kamchatka Peninsula.

IMA status : Approved Species 1987 (IMA1986-029)
CLASSIFICATION 
Dana
(8th edition) :
30.01.17.02  
  (30) Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.01) where (A B)m (XO4)p Zq where m:p>2:1
  (30.01.17)
  
Nickel-Strunz
(10th edition) :
07.BC.20
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.B) Sulfates (selenates, etc.) with Additional Anions, without H2O
  (07.BC) With medium-sized and large cations
  
Crystal system: Tetragonal System
Point group (H-M): 4/mmm (or 4/m 2/m 2/m) — ditetragonal-dipyramidal
Unit cell: a = 9.86(2) Å, c = 20.58(2) Å
Crystal Habit: Eight-sided crystals are tabular with prominent {001} modified by {110}, {012} and {014}, to 1 mm; typically inter-grown with nabokoite.
  
Color: Dark brown; pale gray with yellow internal reflections in reflected light.
Diaphaneity: Transparent
Luster: Vitreous
Hardness (Mohs): 2 - 2.5
Measured Density: 4.2 g/cm3
Cleavage: On {001}, perfect
Streak: Pale brown
  
Polymorphism and Series: Forms a series with nabokoite.
Geologic Setting: As a volcanic sublimate.
Mineral Association: Nabokoite, anglesite, dolerophanite, euchlorine, chloroxiphite, atacamite, piypite, chalcocyanite, alarsite, fedotovite, lammerite, klyuchevskite, langbeinite, hematite, tenorite
  

<<< BACK TO MINERAL SEARCH