| July |
Ruby
|
A deep red, translucent variety of the mineral corundum |
| August |
Peridot
|
A yellowish-green variety of olivine |
| September |
Sapphire
|
A clear hard variety of corundum used as a gemstone that is
usually blue but may be any color except red |
| October |
Opal
|
A mineral of hydrated silica, noted for its rich iridescence |
| November |
Topaz
|
A colorless, blue, yellow, brown, or pink aluminum silicate
mineral, often found in association with granitic rocks |
| December |
Turquoise
|
A blue to blue-green mineral of aluminum and copper, a gemstone
in its polished blue form |
