Birthstone for the M/o July
New
NewSale
NewSale
Sale
Sale
Ruby, Turquoise, Oynx are the birthstones of July. Ruby is a precious gemstone. Its colour is red to pink or pink to red. It is a variety of corundum. This is the variety of corundum gems and minerals. The formula is aluminum oxide. Ruby is valuable by price and considered a precious stone. Chromium becomes the cause of ruby color. Ruby is a variety of corundum, the formula of which is aluminum oxide. Why ruby rank high in price among precious stones? Learn here.........
What is Ruby Properties?
| Chemical Formula | Al2O3 (aluminum oxide) |
| Colour | Red, Pink, Orangish pink, purplish-pink |
| Hardness | 9 |
| S.G | 3.9 – 4 |
| Refractive Index | 1.757-1.779 |
| Streak | White |
| Crystallography | Hexagonal |
| Luster | Vitreous to subadamantine. |
| Cleavage | None |
| Transparency | transparent to opaque |
| Tenacity | Brittle |
| Fracture | Conchoidal, splintery |
| Pleochroism | strong |
| Phenomena | Asterism |
| Ultraviolet fluorescence | red under longwave |
Meaning of July Birthstone: invincibility, positivity
