|
For its state mineral, Colorado chose rhodochrosite, which is a deep shade of this primary color |
red
|
$200 |
J |
ROCKS & MINERALS |
2007-12-25 |
#5362 |
|
When scratched against a surface, hematite leaves this color streak |
red
DD
|
$5,000 |
J |
ROCKS & MINERALS |
2002-09-05 |
#4139 |
|
Old masters could grind up hematite or cinnabar to make shades of this primary color |
red
|
$200 |
DJ |
GEMS & MINERALS |
1999-07-05 |
#3431 |
|
The Black Prince's ruby on the British crown isn't a real ruby but a spinel of this color |
red
|
$200 |
DJ |
GEMS & JEWELRY |
1991-03-28 |
#1524 |