R060242 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

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Betpakdalite-CaMg R060242

Name: Betpakdalite-CaMg
RRUFF ID: R060242
Ideal Chemistry: [Ca₂(H₂O)₁₇Mg(H₂O)₆][Mo⁶⁺₈As⁵⁺₂Fe³⁺₃O₃₆(OH)]
Locality: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Yellow short prismatic crystals
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.

Mineral Group: [ Betpakdalite (4) ]

CHEMISTRY

RRUFF ID:	R060242.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	Mg_1.00Ca_2.00Fe³⁺_3.00(Mo_7.89W_0.11)_Σ=8((As_1.94P_0.06)_Σ=1O₄)₂O₂₈(OH)·23H₂O ; H not mesured but estimated by difference and stoichiometry; the lighter areas are richer in W.
Microprobe Data File:	[ Download Excel File ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

DOWNLOADS:

To download sample data,
please select a specific
orientation angle.

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R060242

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R060242.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 19.40(1)Å b: 11.043(6)Å c: 15.176(8)Å
alpha: 90° beta: 131.327(8)° gamma: 90° Volume: 2442(3)Å³ Crystal System: monoclinic

File Type Information

Calculated diffraction file.

File Type Information

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

DOWNLOADS:

	DIF File
	X-ray Data (XY - RAW)
	RRUFF File

REFERENCES for Betpakdalite-CaMg
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]
Williams P A, Hatert F, Pasero M, Mills S J (2011) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 10. New minerals and nomenclature modifications approved in 2011, Mineralogical Magazine, 75, 2549-2561 [view file]
Kampf A R, Mills S J, Rumsey M S, Dini M, Birch W D, Spratt J, Pluth J J, Steele I M, Jenkins R A, Pinch W W (2012) The heteropolymolybdate family: structural relations, nomenclature scheme and new species, Mineralogical Magazine, 76, 1175-1207 [view file]

REFERENCES for Betpakdalite-CaMg

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]

Williams P A, Hatert F, Pasero M, Mills S J (2011) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 10. New minerals and nomenclature modifications approved in 2011, Mineralogical Magazine, 75, 2549-2561 [view file]

Kampf A R, Mills S J, Rumsey M S, Dini M, Birch W D, Spratt J, Pluth J J, Steele I M, Jenkins R A, Pinch W W (2012) The heteropolymolybdate family: structural relations, nomenclature scheme and new species, Mineralogical Magazine, 76, 1175-1207 [view file]