Pharmacoalumite Group

Compare Pharmacosiderite Group.

History

Activities related to discovery and approval of the group members

Structural context

Isometric System
9 measurement(s) or 100.00%4 member(s) or 100.00%
a7.713—15.405 (9.4525)
b7.713—15.405 (9.4525)
c7.713—15.553 (9.4854)
alpha90
beta90
gamma90
volume458.849—3691 (1182.5706)

Based on 9 measurements
Bariopharmacoalumite
Hydroniumpharmacoalumite
Natropharmacoalumite
Pharmacoalumite

Chemical context

Stoichiometric formulas

Pharmacoalumite Group
mineralogy.rocks
  • Aug. 30, 2022A0.5-1Al4(AsO4)3(OH)4·4-6.5H2O

Elements recorded on EPMA

8
Al
8
As
8
H
8
O
4
Ba
4
Fe
4
K
2
Cu
2
Na

Physical properties

ColorColor entities, recognized using a custom trained NER model
3
  • colorless
  • colourless
2
    2
    • pale yellow
    Color noteOriginal color note from the source
    Colorless; Colorless to white; Colourless to pale yellow; White, pale yellow
    StreakStreak entities, recognized using a custom trained NER model
    4
      Streak noteOriginal streak note from the source
      White
      Lustre
      • Vitreous3
      • Dull1
      • Waxy1
      • Adamantine3
      • Sub-Vitreous1
      Fracture
      • Irregular/Uneven3
      Transparency
      • Transparent4
      • Translucent2
      Tenacity
      • brittle4
      Hardness