Mineral Information and Data:

Anorthominasragrite
V4+O(SO4)(H2O)5 [CNMNC approved formula]

Named as the triclinic polymorph of minasragrite.

IMA status : Approved Species 2003 (IMA2001-040)
CLASSIFICATION 
Dana
(8th edition) :
29.06.12.03  
  (29) Hydrated Acid and Sulfates
  (29.06) where A XO4 · x(H2O)
  (29.06.12) Minasragrite Group (Monclinic and Triclinic)
  
Nickel-Strunz
(10th edition) :
07.DB.20
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.D) Sulfates (selenates, etc.) with additional anions, with H2O
  (07.DB) With only medium-sized cations; insular octahedra and finite units
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
Unit cell: a = 7.548 Å, b = 7.805 Å, c = 7.821 Å, α=79.03°, β=71.94°, γ=65.31°
Crystal Habit: crystal encrustations; spherical aggregates
  
Color: Bluish green
Luster: Vitreous
Hardness (Mohs): 1
Measured Density: 2.12 g/cm3
Streak: White
  
  

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