Important Update News

The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.

We are grateful to NASA for the funding of this effort.

Grandaite R220046

Browse Search Results 
<< Previous |  Back to Search Results |  Next >> 
Record 837 of 4216  


Name: Grandaite
RRUFF ID: R220046
Ideal Chemistry: Sr2Al(AsO4)2(OH)
Locality: Valletta mine, Maira Valley, Piedmont, Italy
Source: Fernando Cámara
Owner: Fernando Cámara
Description: Thin masses of bright orange to salmon to brown crystals. Type sample from Cámara et al (2014)
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Brackebuschite (17) ]
CHEMISTRY 
RRUFF ID: R220046.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Sr1.41Ca0.64Ba0.05Pb0.01)(Al0.68Fe3+0.14Mn3+0.12Mg0.13)[(As0.96V0.01)O4]2(OH)
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R220046
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Jobin-Yvon Horiba Labram 632nm @ 100% of 2mW
POWDER DIFFRACTION 
RRUFF ID: R220046
Sample Description: Powder
Cell Refinement Output: a: 7.575(1)Å    b: 5.9526(9)Å    c: 8.765(2)Å
alpha: 90°    beta: 112.55(2)°    gamma: 90°   Volume: 366.62(4)Å3    Crystal System: monoclinic
  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

X Min:    X Max:    X Sort:
REFERENCES for Grandaite

American Mineralogist Crystal Structure Database Record: [view record]

Williams P A, Hatert F, Pasero M, Mills S J (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 18. New minerals and nomenclature modifications approved in 2013, Mineralogical Magazine, 77, 3249-3258   [view file]

Cámara F, Ciriotti M E, Bittarello E, Nestola F, Massimi F, Radica F, Costa E, Benna P, Piccoli G C (2014) Arsenic-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: I. Grandaite, Sr2Al(AsO4)2(OH), description and crystal structure, Mineralogical Magazine, 78, 757-774   [view file]

Uvarova Y, Gagne O C, Belakovskiy D (2015) New mineral names, American Mineralogist, 100, 334-339   [view file]