Apatiitti 4,3 mm / 0,3 ct pyöreä
Apatiitti
Alkuperä (todennäköinen) : Madagasgar
Paino ( ct noin ) : 0,3
Mitat ( mm noin ) : 4,3 x 4,3
Hionta : viistehiottu
Puhtaus : VS
Erinomainen Erittäin hyvä Hyvä ”kakkosluokkaa”
Hionta X
Loisto X
Väri X
Ominaista : edullinen turkoosi värinen jalokivi
Näitä voi tilata parin tai useampiakin, ovat vakiokokoa
Apatite is very rarely encountered as a gem material but occurs in transparent form in blue, violet, purple , yellowish green and, bluish green colors. With a hardness of 5, apatite is not a very hard stone but it is still used in jewelry because of its attractive color. Apatite is also very heat sensitive and as a result, there are few lapidaries that can cut it at all. |
| Known Facts | |
| Color Key: | yellow, green, below, violet. |
| Refractive Index: | 1.63-1.64 |
| Chemical Composition: | Phosphate group |
| Hardness: | 5 |
| Density: | 3.17-3.23 |
| Crystal Group: | Hexagonal |
| Ocurrence: | Burma, Ceylon, Madagascar, Mexico. Canada, India |
Apatite crystallizes in the hexagonal system as prismatic crystals or as compact masses. | |
