Maldonite

Thermodynamically unstable below ~116°C, but is found in a metastable state in nature. Maldonite is the only stable binary alloy phase in the system Au-Bi.

History

Activities related to discovery and approval of the group members

Structural context

Maldonite
Crystal System isometricCrystal Class hexoctahedralSpace Group Fd-3m
a7.942
b7.942
c7.942
alpha90
beta90
gamma90
volume500.945

Based on 1 measurements

Chemical context

Stoichiometric formulas

Maldonite
mindat.org
  • March 13, 2023Au2Bi
IMA
  • March 13, 2023Au2Bi
mineralogy.rocks
  • Aug. 30, 2022Au2Bi

Elements recorded on EPMA

1
Au
1
Bi

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • silver white
    Color noteOriginal color note from the source
    Silver white with pink tint
    Lustre
    Metallic
    Fracture
    Hackly
    Conchoidal
    Transparency
    Opaque
    Tenacity
    malleable
    Hardness
    1.5—2
    Calculated density
    15.7