Natural Gemstones: Reference Facts
Pink Sapphire
Pink sapphire is one of the best gemstones for jewelry setting. It belongs to the corundum family. Pink sapphire is available from a very pale pink to a light red. The dividing line between ruby and pink sapphire or reddish orange sapphire is debatable. As a rule, tone and saturation levels distinguish ruby from pink sapphire or reddish orange sapphire. Pink sapphire has long been cherished by gemstone lovers and jewelers due to its beauty, its affectionate color, its transparency, and its durability. Pink sapphire is an excellent jewelry stone. With a hardness of 9 on the Mohs' scale, its hardness is exceeded only by diamond -the hardest mineral on Earth.
Like ruby, pink sapphire is believed to bring harmony and peace, and protect the wearer against illness and misfortune. Pink sapphire also symbolizes truth, sincerity and loyalty.
| Pink Sapphire Known Facts
|
| Color |
Pink, Purplish Pink, Reddish Pink |
| Clarity
|
Type II – usually eye clean with some inclusions under magnification |
| Crystal Structure
|
Trigonal
|
| Chemical Composition
|
Al2O3 – Aluminum oxide |
| Luster
|
Vitreous
|
| Optic Character
|
Doubly Refractive
|
| Durability
|
Excellent
|
| Specific Gravity(SG)
|
4
|
| Refractive Index(RI)
|
1.762-1.770
|
| Birefringence
|
0.008
|
| Hardness
|
9
|
| Occurrence
|
Sri Lanka, Burma (Myanmar), East Africa |
|
|