Georgerobinsonite
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Dr. George Robinson
Formula:
Pb4(CrO4)2(OH)2FCl
System:
Orthorhombic
Name:
Named in 2009 by Mark A. Cooper, Neil A. Ball, Frank C. Hawthorne, Werner H. Paar, Andrew C. Roberts, and Elizabeth Moffatt in honor of Dr. George Willard Robinson (February 7, 1946, Glens Falls, New York - ), professor of mineralogy at Michigan Technological University, curator of the A.E. Seaman Mineral Museum (1996-2013), and author.
This page provides mineralogical data about Georgerobinsonite.
Classification of Georgerobinsonite
Approved
Approval Year:
2009
Chemical Properties of Georgerobinsonite
Formula:
Pb4(CrO4)2(OH)2FCl
Crystallography of Georgerobinsonite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pmmn
Cell Parameters:
a = 7.6257(6) Å, b = 11.6078(9) Å, c = 6.8961(5) Å
Ratio:
a:b:c = 0.657 : 1 : 0.594
Unit Cell Volume:
V 610.43 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.371 | (60) |
| 3.357 | (60) |
| 3.308 | (80) |
| 3.195 | (80) |
| 3.143 | (60) |
| 2.131 | (100) |
Type Occurrence of Georgerobinsonite
Other Names for Georgerobinsonite
Name in Other Languages:
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Georgerobinsonite
Reference List:
IMA approvals - November 2009
Cooper, M.A., Ball, N.A., Hawthorne, F.C., Paar, W.H., Roberts, A.C., Moffatt, E. (2011) Georgerobinsonite, Pb4(CrO4)2(OH)2FCl, a new chromate mineral from the Mammoth - St. Anthony mine, Tiger, Pinal County, Arizona: Description and crystal structure. The Canadian Mineralogist: 49: 865-876.
Cooper, M.A., Ball, N.A., Hawthorne, F.C., Paar, W.H., Roberts, A.C., Moffatt, E. (2011) Georgerobinsonite, Pb4(CrO4)2(OH)2FCl, a new chromate mineral from the Mammoth - St. Anthony mine, Tiger, Pinal County, Arizona: Description and crystal structure. The Canadian Mineralogist: 49: 865-876.
Internet Links for Georgerobinsonite
mindat.org URL:
https://www.mindat.org/min-39765.html
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External Links:
Mineral Dealers:
Localities for Georgerobinsonite
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality.
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(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
USA (TL) | |
| IMA Approvals - Nov.2009 |
Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA