----- R070661 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Keystoneite R070661

Name: Keystoneite
RRUFF ID: R070661
Ideal Chemistry: Mg_0.5NiFe³⁺(Te⁴⁺O₃)₃·4H₂O
Locality: McAlpine mine, Moccasin, Tuolumne County, California, USA
Source: Michael Scott S106029 [view label]
Owner: RRUFF
Description: Clusters of greenish yellow acicular microcrystals associated with quartz and pyrite.
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.

Mineral Group: [ Zemannite (3) ]

Quick search: [ All Keystoneite samples (2) ]

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:

R070661

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File
	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R070661.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 9.363(4)Å b: 9.363(4)Å c: 7.615(4)Å
alpha: 90° beta: 90° gamma: 120° Volume: 578.2(1)Å³ Crystal System: hexagonal

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 Keystoneite
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]
Genth F A (1877) Contribution from the laboratory of the University of Pennsylvania: Ferrotellurite, a new mineral, Proceedings of the American Philosophical Society, 17, 119-119 [view file]
Back M E, Roberts A C, LePage Y, Mandarino J A (1988) Keystoneite, a new tellurite from the Keystone mine, Colorado, U.S.A., Abstracts of the Joint Annual Meeting of the Geological and Mineralogical Associations of Canada, 13, A4-A4 [view file]
Miletich R (1995) Crystal chemistry of the microporous tellurite minerals zemannite and kinichilite, Mg_0.5[Me²⁺Fe³⁺(TeO₃)₃]₄·5H₂O, (Me²⁺=Zn;Mn), European Journal of Mineralogy, 7, 509-523
Missen O P, Back M E, Mills S J, Roberts A C, LePage Y, Pinch W W, Mandarino J A (2021) Crystal chemistry of zemannite-type structures: III. Keystoneite, the Ni²⁺-analogue of zemannite, and ferrotellurite discredited, The Canadian Mineralogist, 59, 355-364

REFERENCES for Keystoneite

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]

Genth F A (1877) Contribution from the laboratory of the University of Pennsylvania: Ferrotellurite, a new mineral, Proceedings of the American Philosophical Society, 17, 119-119 [view file]

Back M E, Roberts A C, LePage Y, Mandarino J A (1988) Keystoneite, a new tellurite from the Keystone mine, Colorado, U.S.A., Abstracts of the Joint Annual Meeting of the Geological and Mineralogical Associations of Canada, 13, A4-A4 [view file]

Miletich R (1995) Crystal chemistry of the microporous tellurite minerals zemannite and kinichilite, Mg_0.5[Me²⁺Fe³⁺(TeO₃)₃]₄·5H₂O, (Me²⁺=Zn;Mn), European Journal of Mineralogy, 7, 509-523

Missen O P, Back M E, Mills S J, Roberts A C, LePage Y, Pinch W W, Mandarino J A (2021) Crystal chemistry of zemannite-type structures: III. Keystoneite, the Ni²⁺-analogue of zemannite, and ferrotellurite discredited, The Canadian Mineralogist, 59, 355-364