| Natural Paraiba Tourmaline/Apatite Orange Sapphire Cluster Sterling Silver Ring |
| SPECIFICATIONS |
| Product ID: cr6300 |
| Description: Paraiba Apatite & Orange Sapphire |
| Metal: 925 STERLING SILVER |
| Gram Silver Weight: 7.3 Gram |
| Ring Size : 7 |
| Gemstone: Paraiba Apatite & Orange Sapphire Ring in 925 Sterling Silver |
| Weight(cts): 4.84 Cts |
| Dimen.(L X W X D)(mm): 3 mm |
| Color: AAA |
| Shape: ROUND |
| Clarity: IF |
| Apatite is "any group of calcium phosphate minerals occurring variously as hexagonal crystals, as granular masseor in fine-grained masses as the chief constituent of phosphate rock and of bones and teeth; especially: calcium phosphate fluoride," according to Merriam-Webster's dictionary. It is a common phosphate mineral. It is found in igneous, sedimentary and metamorphic rock, in phosphorite and in some hydrothermal veins and in iron rich igneous deposits along with feldspar, quartz and iron ores. Apatite is found in Myanmar (Burma), Brazil, India, Kenya, Madagascar, Norway, Sri Lanka, South Africa, Mexico, Canada and the United States. |
| There are three minerals that actually contribute to apatite, which is the reason for the varied colors and shades of this stone. Apatite is calcium phosphate combined with fluorine, chlorine or hydroxyl. These three minerals are usually found in every specimen but some specimens have been known to have 100% of one or the other. It is often hard to spot the difference between the three minerals in hand samples of this stone. Therefore, they are often considered together in apatite. |
| Mineral Information:Basic fluori- and chloro-calcium phosphate |
| Chemical Composition |
| Color Ca5(PO4)3 + (F, Cl, or OH) |
| Hardness: Colorless, pink, yellow, green, blue, violet, brown, purple 5 (Mohs) |
| Specific Gravity:3.17 - 3.23 |
| Refractive Index:1.628 - 1.65 |