| SPINEL is a good candidate for the title of "History's Most Under Appreciated Gem." Some of the world's most illustrious "rubies" are actually spinels.One of these is the Black Prince's Ruby, a polished but unfaceted red spinel that weighs about 170 cts. In addition to its attractive colors, spinel is a hard, tough stone that's suitable for daily wear in any type of jewelry. It will always be popular with customers who like beautiful and unusual gems. |  |
Color
:Violet, Blue, Orange, Red, Pink, and Purple
:The reds can rival fine ruby
:The best blue spinel is "cobalt blue spinel."
| Durability | Hardness (Mohs scale) | 8 | |
| Toughness | Good | ||
| Stability | Environmental Factor | Reaction | |
| Heat | Stable | ||
| Light | Stable | ||
| Chemical | Stable |
| Sources/Origins | Major | Other |
| Cambodia, Myanmar, Sri Lanka, Tanzania, Thailand (usually black) | Afghanistan, Pakistan, Vietnam, Tajikistan |
| Enhanchment | No commercial enhanchment |
| Care and Cleaning | Type of Cleaning | Advisability |
| Ultrasonic cleaning | Usually safe | |
| Steam cleaning | Usually safe | |
| Warm, soapy water | Safe |
| Alternatives | Naturals | Man made |
| Almandite garnet, Amethyst, Malaya garnet, | CZ | |
| Pyrope garnet,Rhodolite garnet, Ruby, | Synthetic corundum | |
| Sapphire, Spessartite garnet, Tanzanite, | Synthetic spinel | |
| Tourmaline | Synthetic spinel triplet |
Do you know?
: Spinel usually come in the same alluvial as corundum.
: Some spinels show color-change, star phenomena.
: "Balas ruby" is red spinel.
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