Laverovite R190014

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Record 7 of 11  

Name: Laverovite
RRUFF ID: R190014
Ideal Chemistry: K2NaMn7Zr2(Si4O12)2O2(OH)4F
Locality: Desourdy Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada
Source: Royal Ontario Museum M26526 [view label]
Owner: RRUFF
Description: Brown fragment showing lamellar habit. Type sample. This sample is the same as R060216. A fragment was given to Elena Sokolova. All data are from Sokolova et al. (2019) except for the Raman spectra and photograph.
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ astrophyllite (11) ]
Quick search: [ All Laverovite samples (2) ]
CHEMISTRY 
RRUFF ID: R190014
Sample Description: Microprobe Fragment. The laverovite zone is enclosed by a red ellipse.
Measured Chemistry: (K1.78Sr0.02Cs0.01   0.19)(   1.85Na0.15)(Na0.88Ca0.12)(Mn4.03Fe2+2.71Mg0.25Zn0.01)(Zr1.11Ti0.82Nb0.06Mg0.01)[(Si7.78Al0.26)O24]O2[(OH)3.68F0.32]F[   1.85(H2O)0.15]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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POWDER DIFFRACTION 
RRUFF ID: R190014
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.4329(1)Å    b: 11.9232(3)Å    c: 11.7491(3)Å
alpha: 112.905(2)°    beta: 94.696(1)°    gamma: 103.178(1)°   Volume: 670.14(5)Å3    Crystal System: triclinic
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REFERENCES for Laverovite

Hålenius U, Hatert F, Pasero M, Mills S J (2018) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 46. New minerals and nomenclature modifications approved in 2018, Mineralogical Magazine, 82, 1369-1379   [view file]

Sokolova E, Day M C, Hawthorne F C, Kasatkin A V, Downs R T, Horváth L, Pfenninger-Horváth E (2019) Laverovite, K2NaMn7Zr2(Si4O12)2O2(OH)4F, a new astrophyllite-super-group mineral from Mont Saint-Hilaire, Québec, Canada, The Canadian Mineralogist, 57, 201-213   [view file]