Esperite R070512

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Record 1262 of 4043  


Name: Esperite
RRUFF ID: R070512
Ideal Chemistry: PbCa2(ZnSiO4)3
Locality: Parker Shaft, Franklin, Sussex County, New Jersey, USA
Source: Canadian Museum of Nature LP2006-0222 [view label]
Owner: RRUFF
Description: Greasy white massive, co-type specimen. Structure reported in Tait et al (2010) is from this sample.
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Beryllonite (6) ]
Quick search: [ All Esperite samples (2) ]
CHEMISTRY 
RRUFF ID: R070512.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca1.86Fe0.07Mn0.04Cr3+0.02   0.01)Σ=2Pb1.00Zn3.00((Si1.00O4)3 ; = pin #1 : (Ca1.79Fe0.12Cr3+0.04Mn0.03   0.02)Σ=2Pb1.00Zn3.00((Si1.00O4)3 ; = pin #2
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070512
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R070512.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.7889(2)Å    b: 8.2685(2)Å    c: 15.2535(3)Å
alpha: 90°    beta: 90.050(1)°    gamma: 90°   Volume: 1108.49(4)Å3    Crystal System: monoclinic
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Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Esperite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Palache C, Bauer L H, Berman H (1928) Larsenite and calcium-larsenite, new members of the chrysolite group, from Franklin, New Jersey. (Preliminary Notice), American Mineralogist, 13, 142-144   [view file]

Moore P B, Ribbe P H (1965) A study of “calcium-larsenite” renamed esperite, American Mineralogist, 50, 1170-1178   [view file]

Ito J (1968) Synthesis of some lead calcium zinc silicates, American Mineralogist, 53, 231-240   [view file]

Dunn P J (1985) The lead silicates from Franklin, New Jersey: occurrence and composition, Mineralogical Magazine, 49, 721-727   [view file]

Tait K T, Yang H, Downs R T, Li C, Pinch W W (2010) The crystal structure of esperite, with a revised chemical formula, PbCa2(ZnSiO4)3, isostructural with beryllonite, American Mineralogist, 95, 699-705   [view file]