| Mineral | Synchysite-(Y) |
|---|---|
| Formula | CaY(CO3)2F |
| Crystal Form | Hexagonal/Ditrigonal Dipyramidal [6m2] |
| Color | White, Reddish-brown, Greyish-yellow, Dull yellow |
| Diaphaneity | Translucent |
| Fracture | Splintery, Sub-conchoidal, Parting on {0001}, Brittle |
| Hardness | 6.0 - 6.5 |
| Lustre | Sub-adamantine, Vitreous, Greasy |
| Streak | Light brown |
| Type Loc. | Scrub Oak Mine, Mine Hill Borough, Morris Co., NJ, USA |
| Dana 8 Class | 16a.1.3.2 |
| Strunz Class | 5/C.07-100 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 407 |