Georgerobinsonite
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About Georgerobinsonite
Dr. George Robinson
Formula:
Pb4(CrO4)2(OH)2FCl
Crystal 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 V:
610.43 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
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
Synonyms of Georgerobinsonite
Common Associates
Associated Minerals Based on Photo Data:
| Cerussite | 1 photo of Georgerobinsonite associated with Cerussite on mindat.org. |
| Leadhillite | 1 photo of Georgerobinsonite associated with Leadhillite on mindat.org. |
| Bobmeyerite | 1 photo of Georgerobinsonite associated with Bobmeyerite on mindat.org. |
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:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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.
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
ⓘ - Click for further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)
All localities listed without proper references should be considered as questionable.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
USA (TL) | |
| IMA Approvals - Nov.2009 |
Mammoth-Saint Anthony Mine, St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA