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Arrojadite-(KFe) from
Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA


06657240017271921097924.jpg
Arrojadite-(KFe), etc.

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
07185340017272015589196.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
04203130017272015607719.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
00259090017272015622503.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
07126740017367191201131.jpg
Arrojadite-(KFe), etc.

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
07185340017272015589196.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
04203130017272015607719.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
00259090017272015622503.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
06657240017271921097924.jpg
Arrojadite-(KFe), etc.

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
07185340017272015589196.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
04203130017272015607719.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
00259090017272015622503.jpg
Arrojadite-(KFe)

Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Locality type:Mine
Classification
Species:Arrojadite-(KFe)
Formula:(KNa)(Fe2+◻)Ca(Na2◻)Fe132+Al(PO4)11(PO3OH)(OH)2
Chemical Analyses:
Oxide wt%:
1
P2O540.00 %
Al2O32.00 %
FeO28.00 %
MgO1.00 %
MnO15.00 %
CaO2.00 %
Na2O6.00 %
K2O1.00 %
LiO0.00 %
H2O+0.00 %
F0.00 %
Insol0.00 %
Total:95.00 %
Sample references:
1 -
Lindberg, Marie Louise (1950) Arrojadite, hühnerkobelite, and graftonite. American Mineralogist, 35 (1-2) 59-76
Comments:As large cleavable masses to 15 cm in a granitic pegmatite associated with quartz, graftonite, sphalerite, cassiterite, beryl, muscovite and spodumene. The material is dark green and translucent. This was the first arrojadite found, but it was not described well and given the name headdenite after the American mineralogist William Headden (1850-1932) who first described the mineral.
Confirmation
Validity:Valid - Type Locality
Associated Minerals:
Associates:Beryl
Cassiterite
Graftonite
Muscovite
Spodumene
Associated Minerals Based on Photo Data:
Triphylite1
Graftonite1
Data
Mineral Data:Click here to view Arrojadite-(KFe) data
Locality Data:Click here to view Nickel Plate Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Photo GalleryView Gallery (8 photos)
Data Identifiers
Mindat Occurrence Record ID:1161
Long-form Identifier:1:3:1161:7
GUID (UUID V4):0
Nearest other occurrences of Arrojadite-(KFe)
0.6km (0.4 miles) ⓘEtta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
0.7km (0.5 miles) ⓘWhite Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
16.9km (10.5 miles) ⓘVictory Mine, Custer, Custer Mining District, Custer County, South Dakota, USA
References
Lindberg, Marie Louise (1950) Arrojadite, hühnerkobelite, and graftonite. American Mineralogist, 35 (1-2) 59-76
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
Campbell, Thomas J., Triscori, Kurt L. (1986) Type Locality Minerals of the Black Hills, South Dakota. The Mineralogical Record, 17 (5) 297-302
Daltry, V.D.C., von Knorring, O. (1998) Type-mineralogy of Rwanda with particular reference to the Buranga pegmatite. Geologica Belgica: 1: 9-15. https://popups.uliege.be/1374-8505/index.php?id=1593(referring to Lindberg, 1950)
 
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