Synchysite-(Ce)
Synchysite-(Ce) is a carbonate mineral and an end member of the synchysite group. The general chemical formula is Ca(Ce,La)(CO3)2F.[2]
| Synchysite-(Ce) | |
|---|---|
-189497.jpg) Synchysite-(Ce) from Poudrette quarry, Mont Saint-Hilaire | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | Ca(Ce,La)(CO3)2F |
| Strunz classification | 5.BD.20c |
| Dana classification | 16a.1.3.1 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | C2/c |
| Identification | |
| Tenacity | Brittle |
| Mohs scale hardness | 4.5 |
| Luster | Vitreous |
| Diaphaneity | Translucent |
| Pleochroism | Weak |
| References | [1] |
Discovery and naming
Synchysite-(Ce) was discovered in 1900 by Gustaf Flink.[3] The name is derived from the Greek "σύγχΰσις", meaning "confounding", a reference to the possibility to confuse the mineral with Parisite-(Ce).
Occurrences
Synchysite-(Ce) is found in rare-earth element bearing pegmatites.[4] It can also occur as a hydrothermal mineral in granite, alkalic syenite and carbonatite.[1]
gollark: If you could only get correct values from measuring actual circles nobody would get anything done.
gollark: No you don't. If you do the expansion at 0 the derivatives are just 0, 1, 0, -1 or something like that (repeatedly) so there's a nice infinite series.
gollark: You just run the disassembly backward to assemble it.
gollark: 70 steps either way.
gollark: You're meant to disassemble it into pieces and reassemble it (by moving the pieces around). It's about 70 steps. I have absolutely no idea how they designed this thing.
References
- "Synchysite-(Ce)" (PDF). handbookofmineralogy. Retrieved 24 February 2013.
- "Synchysite-(Ce)". Retrieved 24 February 2013.
- Flink, Gustaf (1900). "Ueber den Synchysit". Bull. Geol. Inst. Univ. Upsala: 81.
- "Synchysite-(Ce) Mineral Data". Retrieved 24 February 2013.
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