Apatite
UNB-2017-0033Minerals » Phosphates
Description
Large sample of green prismatic euhedral Apatite with a greasy lustre. Large brownish tabular Muscovite embedded near the margin of the Apatite crystal. Euhedral form with a hexagonal outline and lustre is pearly. Muscovite size: 2.0 cm x 1.5 cm x 0.3 cm.
Apatite (Ca5(PO4)3(F,Cl,OH)) can be green, brown, red, yellow, violet, pink, white or colourless. Lustre can be greasy or vitreous and streak is white. Hardness is 5 and cleavage is poor in the crosswise direction. Apatite tends to be long or short prismatic forms but can also be tabular, massive, coarse granular to compact, stalactitic, earthy or oolitic.
Specifications
| Object name | Apatite |
|---|---|
| ID | UNB-2017-0033 |
| Legal status | Permanent collection |
| Category | Mineral |
| Classification | Mineral group: Phosphates |
| Composition |
|
| Origin | Unknown |
| Pieces | 1 |
| Partial | No |
| Measurements |
|
Publications
- Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.