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.

Gerhardtite R120082
Name: Gerhardtite
RRUFF ID: R120082
Ideal Chemistry: Cu2(NO3)(OH)3
Locality: Tonapah-Belmont mine, Marizopa County, Arizona, USA
Source: Joe Ruiz [view label]
Owner: RRUFF
Description: Light blue crystalline associated with green malachite
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
DOWNLOADS:

  To download sample data,
  please select a specific
  orientation angle.
Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R120082
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 50% of 150mW
DOWNLOADS:

Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R120082.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 6.095(4)Å    b: 13.792(8)Å    c: 5.555(3)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 467.0(3)Å3    Crystal System: orthorhombic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
X Min:    X Max:    X Sort:
REFERENCES for Gerhardtite

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]

Wells H L, Penfield S L (1885) Gerhardtite and artificial basic cupric nitrates, American Journal of Science, 30, 50-57   [view file]

Oswald H R (1961) Über natürlichen und künstlichen Gerhardtit, Zeitschrift für Kristallographie, 116, 210-219   [view file]

Bovio B, Locchi S (1982) Crystal structure of the orthorhombic basic copper nitrate, Cu2(OH)3NO3, Journal of Crystallographic and Spectroscopic Research, 12, 507-517

Effenberger H (1983) Verfeinerung der kristallstruktur des monoklinen dikupfer(II)-trihydroxi-nitrates Cu2(NO3)(OH)3, Zeitschrift für Kristallographie, 165, 127-135   [view file]

Frost R L, Leverett P, Williams P A, Weier M L, Erickson K L (2004) Raman spectroscopy of gerhardtite at 298 and 77 K, Journal of Raman Spectroscopy, 35, 991-996

Melchiorre E B, Williams P A, Rose T P, Talyn B C (2006) Biogenic nitrogen from termite mounds and the origin of gerhardtite at the Great Australia mine, Cloncurry, Queensland, Australia, The Canadian Mineralogist, 44, 1447-1455   [view file]