Hummerite R070450



Name: Hummerite
RRUFF ID: R070450
Ideal Chemistry: KMgV5+5O14·8H2O
Locality: Hummer mine, Jo Dandy mine (Paradox D; Hummer; C; Blackburn; Yellow Bird No. 1; Oversight; Broker), Paradox Valley, Uravan District, Montrose County, Colorado, USA
Source: Michael Scott S100599 [view label]
Owner: RRUFF
Description: Bright orange coarse grains, some showing tabular crystal forms
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070450
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 65% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R070450.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.817(4)Å    b: 10.717(6)Å    c: 11.070(5)Å
alpha: 65.79(1)°    beta: 74.09(1)°    gamma: 71.87(1)°   Volume: 893(1)Å3    Crystal System: triclinic
  File Type Information Close
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 Hummerite

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]

Weeks A D, Cisney E A, Sherwood A M (1951) Hummerite and montroseite, two vanadium minerals from Montrose County, Colorado. Abstracts of papers presented at the thirty-first annual meeting of the Mineralogical Society of America at Washington, D.C., American Mineralogist, 36, 310-328   [view file]

Hughes J M, Schindler M, Rakovan J, Cureton F E (2002) The crystal structure of hummerite, KMg(V5O14)·8H2O: bonding between the [V10O28]6- structural unit and the {K2Mg2(H2O)16}6+ interstitial complex, The Canadian Mineralogist, 40, 1429-1435   [view file]

Frost R L, Erickson K L, Weier M L (2004) Hydrogen bonding in selected vanadates: a Raman and infrared spectroscopy study, Spectrochimica Acta Part A, 60, 2419