UM1993-24-SiO:CaHMg
Valid as an unnamed mineral
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The Ca analogue of clinojimthompsonite.
As up to 10 microns wide lamellae, intergrown along (010) with tremolite.
Coexists with UM1978-22-SiO:FeHMg - monoclinic polymorph of (Ca-rich) chesterite (so-called "clinochesterite").
As up to 10 microns wide lamellae, intergrown along (010) with tremolite.
Coexists with UM1978-22-SiO:FeHMg - monoclinic polymorph of (Ca-rich) chesterite (so-called "clinochesterite").
Unique Identifiers
Mindat ID:
53489
Long-form identifier:
mindat:1:1:53489:5
GUID
(UUID V4):
(UUID V4):
89d679b1-92be-471f-b1c7-9439a6791a64
Classification of UM1993-24-SiO:CaHMg
IMA status notes:
Unnamed (probably valid)
Chemical Properties of UM1993-24-SiO:CaHMg
Formula:
Ca2(Mg,Fe)8SiO32(OH)
Crystallography of UM1993-24-SiO:CaHMg
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.3 Å, b = 27 Å
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Unit Cell V:
0.00 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.
References for UM1993-24-SiO:CaHMg
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Konishi, H., Akai, K., Kurokawa, K. (1993) Calcic analog of clinojimthompsonite from the Oeyama ophiolite, southwest Japan. Jour. Geol. Soc. Japan: 99: 679-682; in: Jambor, J.L., Kovalenker, V.A., Roberts, A.C. (1995): New mineral Names. American Mineralogist: 80: 633
Smith, D.G.W., Nickel, E.H. (2007): A System of Codification for Unnamed Minerals: Report of the SubCommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification. Canadian Mineralogist: 45: 983-1055; http://nrmima.nrm.se (2016)
Internet Links for UM1993-15-S:CdInZn
Internet Links for UM1993-24-SiO:CaHMg
mindat.org URL:
https://www.mindat.org/min-53489.html
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Localities for UM1993-24-SiO:CaHMg
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Japan | |
| Konishi, H., Akai, K., Kurokawa, K. (1993) Calcic analog of clinojimthompsonite from the Oeyama ophiolite, southwest Japan. Jour. Geol. Soc. Japan: 99: 679-682; in: Jambor, J.L., Kovalenker, V.A., Roberts, A.C. (1995): New mineral Names. American Mineralogist: 80: 633 |