Ruby






 * Austin Roys / Drew Wintermote**

__** Hardness **__ - A Ruby is 9.0 on the Mohs scale
__** Color **__ - A Ruby is pink to blood red

__** Made of **__- Ruby is made up of chromium (pic of chromium)

__** Made of (atoms) **__ - The type of atoms in a Ruby are AI2O3:Cr/ is formed from corundum

__** Crystals **__- A Ruby has trigonal crystals

__** Fracture **__ - A Ruby has an uneven or jagged fracture


 * __ Cleavage __** - none

__** Streak **__- A Ruby has a white streak

__** Special characteristics **__ - A Ruby glows red under a fluorescent light

__** Luster **__ - A Rubies luster is vitreous

__** Formed **__ - A Ruby crystals are formed at 620 - 670 C, they are formed in high grade metamorphic environments

__** Uses **__ - Some of the uses for a ruby are jewelry, lasers, used as currency

__** Where they are found **__- Rubies are most often found in Africa, Asia, Australia, and Greenland, but can also be found in the states of Montana and South Carolina. Rubies is not found in Iowa.

__** Density **__ - The density of a Ruby is 4 g/ml



sources: []

[]

[]

[]

http://wiki.answers.com/Q/How_are_rubies_formed