Mineral phase
- IMA name
- Gold
- CAS number
- 7440-57-5
- Class
- native element
- Compound type
- metal
- Formula
- $Au$
- Chemical formula
- Au
- Elemental formula
- Au
- Isotope mixture type
- terrestrial abundance
Strunz
- Class
- elements (01)
- Division
- metals and intermetallic alloys (01.A)
- Family
- Copper-cupalite family (01.AA)
- Code
- 01.AA.05
Dana
- Major class
- native elements (I)
- Class
- native elements (01)
- Type
- with metallic elements other than the platinum group (01.01)
- Group
- Gold group (01.01.01)
- Code
- 01.01.01.01
- Phase type
- crystalline
- Crystal system
- isometric (cubic)
- Crystal class
- hexoctahedral
- Crystal class symbol
- m-3m (Oh)
- Crystal spacegroup
- Fm-3m
- Molar mass
- 196.97 $g/mol$
- Density
- 16 - 19.3 $g/cm^3$
- State NTP
- solid
- Phase transitions
-
Phase transition type Other phases Temperature - Pressure solid-liquid liquid 1337.33 K (1064.18 °C)
- Refringence type
- isotropic
- Refraction index $n_{\alpha}$
- 0.269 @ 588nm
- Pure color
- yellow
- Color
- yellow, pale yellow, orange, yellow white, reddish white
- Diaphaneity
- opaque
- Luster
- metallic