Sable

The heraldic term for black. According to The Blazon of Gentrie it signifies the following:

1. Planets: Saturn
2. Precious Stones: diamond, agate, or Chelydoin
3. Virtues: Prudence and Constance
4. Celestial signs: Capricorn and Aquarius
5. Months: December and January
6. Days of the Week: Saturday
7. Ages of Man: Decrepit old age
8. Flowers: The aubifaine
9. Elements: Earth
10. Seasons of the Year: Winter
11. Complexions: Melancholy
12. Numbers: 5, 8
13. Metals: Iron and Lead

See colour.

Its name comes from a small furry animal kin to the marten, which can have natural lustrous black fur (though in heraldry it is classed as a colour not a fur).