Community hub
0 subscribers8 pages, 0 posts
Recent from talks
All channels
Be the first to start a discussion here.
Be the first to start a discussion here.
Be the first to start a discussion here.
Be the first to start a discussion here.
Contribute something
Welcome to the community hub built to collect knowledge and have discussions related to Graftonite.
Nothing was collected or created yet.
Graftonite
View on Wikipediafrom Wikipedia
| Graftonite | |
|---|---|
 Graftonite with Triphylite Iron manganese calcium phosphate Palermo Mine, North Groton, New Hampshire | |
| General | |
| Category | Phosphate minerals |
| Formula | (Fe2+,Mn,Ca)3(PO4)2 |
| Strunz classification | 8.AB.20 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | P21/c |
Graftonite is an iron(II), manganese, calcium phosphate mineral with the chemical formula (Fe2+,Mn,Ca)3(PO4)2. It forms lamellar to granular translucent brown to red-brown to pink monoclinic prismatic crystals. It has a vitreous luster with a Mohs hardness of 5 and a specific gravity of 3.67 to 3.7.
It was first described from its type locality of Melvin Mountain in the town of Grafton, in Grafton County, New Hampshire.
References
[edit]| Borates | |||||
|---|---|---|---|---|---|
| Carbonates | |||||
| Oxides |
| ||||
| Phosphates | |||||
| Silicates | |||||
| Sulfides | |||||
| Other |
| ||||
 | This article about a specific phosphate mineral is a stub. You can help Wikipedia by adding missing information. |