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UM1999-35-SiO:Ca
Valid as an unnamed mineral
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Co-described with UM1999-35-SiO:Ca (now known as breyite). Both were included in diamonds, together with larnite, orthopyroxene, coesite, pyrrhotite, olivine, and periclase.
Seems to be the Si analogue of titanite (?).
Seems to be the Si analogue of titanite (?).
Unique Identifiers
Mindat ID:
54154
Long-form identifier:
mindat:1:1:54154:9
Similar Names
| UM1977-14-SiO:CaH | Ca2SiO4 · H2O | |
| UM1981-24-SiO:CaU | ~(Ca,K,Ba)U8Si2O21 | |
| UM1981-25-SiO:CaU | ~(Ca,Mg,K,Ba)U7Si4O21 | |
| UM1981-26-SiO:CaU | ~(Ca,K,Mg)U3Si11O29 (?) | |
| UM1981-28-SiO:CaU | ~(Ca,K,Ba)U5Si11O33 | |
| UM1999-34-SiO:Ca | A synonym of Breyite | Ca3Si3O9 |
| UM2003-25-Si:Ca | CaSi2 | |
| UM2005-31-SiO:CuH | Cu11(SiO4)(OH)18 · 9H2O (?) | |
| UM2011-21-SiO:CH | A synonym of Bosoite | SiO2 · nCxH2x+2 |
IMA Classification of UM1999-35-SiO:Ca
IMA status notes:
Unnamed (probably valid)
Chemistry of UM1999-35-SiO:Ca
Mindat Formula:
CaSi2O5
or CaSiO(SiO4)
or CaSiO(SiO4)
Element Weights:
Elements listed:
Crystallography of UM1999-35-SiO:Ca
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 6.31-6.32 Å, b = 8.37-8.38 Å, c = 6.50-6.52 Å
β = 112.78-112.88°
β = 112.78-112.88°
Ratio:
a:b:c = 0.754 : 1 : 0.777
Unit Cell V:
316.52 ų (Calculated from Unit Cell)
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for UM1999-35-SiO:Ca
mindat.org URL:
https://www.mindat.org/min-54154.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for UM1999-35-SiO:Ca
Reference List:
Joswig, Werner, Stachel, Thomas, Harris, Jeff W., Baur, Werner H., Brey, Gerhard P. (1999) New Ca-silicate inclusions in diamonds — tracers from the lower mantle. Earth and Planetary Science Letters, 173 (1) 1-6 doi:10.1016/s0012-821x(99)00210-1(Abs. in: Jambor, J.L., Kovalenker, V.A., Roberts, A.C.(2000): New mineral names. Am. Min. 85: 876)
Localities for UM1999-35-SiO:Ca
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Guinea | |
| Joswig et al. (1999) +1 other reference |
