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Dickinsonite-(KMnNa)

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Big Photo

Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Town of Ridgefield, Fairfield Co., Connecticut, USA
© Van King

Show Dickinsonite-(KMnNa) Photos (6)Discuss Dickinsonite-(KMnNa)



Formula:
{KNa}{Mn
2+
 
◻}{Ca}{Na
 
3
}{Mn
2+
13
}{Al}(PO
 
4
)
 
12
(OH)
 
2
System:MonoclinicColour:Green shades to dark ...
Hardness:3½ - 4
Member of:Arrojadite Group
Name:
After the Reverend John William Dickinson (1835-1899) of Redding, Connecticut, USA, who collected minerals of the area and drew attention to them.


Arrojadite Group. Arrojadite-(KFe)-Dickinsonite-(KMnNa) Series.

Note: Mücke & Keck describe "Dickinsonite-(NaMn)" and "Dickinsonite-(KMn)" from Hagendorf-Süd, on the basis of EPMA data.

Classification of Dickinsonite-(KMnNa)

IMA status:Approved 2005
Explanation of status:Redefinition after the new arrojadite nomenclature (CNMMN 05-D, October 2005)
Strunz 8th edition ID:7/B.20-20
Nickel-Strunz 10th (pending) edition ID:8.BF.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
F : With medium-sized and large cations, (OH, etc.):RO4< 0.5:1
Dana 8th edition ID:41.7.2.2

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)7(XO4)4Zq
Hey's CIM Ref.:19.12.33

19 : Phosphates
12 : Phosphates of Mn
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Type Occurrence of Dickinsonite-(KMnNa)

Type Locality:Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Town of Ridgefield, Fairfield Co., Connecticut, USA
Year of Discovery:1878
Geological Setting of type material:Pegmatite
Associated Minerals at type locality:
TriploiditeRhodochrositeReddingiteLithiophiliteFairfieldite
Eosphorite

Occurrences of Dickinsonite-(KMnNa)

Geological Setting:Pegmatites

Physical Properties of Dickinsonite-(KMnNa)

Lustre:Vitreous, Pearly
Diaphaneity (Transparency):Transparent, Translucent
Comment:Lustre somewhat pearly on the cleavage.
Colour:Green shades to dark green, yellowish green, brownish green; green in transmitted light.
Streak:Nearly white
Hardness (Mohs):3½ - 4
Tenacity:Very brittle
Cleavage:Perfect
On {001}, perfect (almost micaceous).
Fracture:Irregular/Uneven
Density (measured):3.38 - 3.41 g/cm3
Density (calculated):3.42 g/cm3
Comment:Measured end values on Branchville (3.41) and Poland, Maine (3.38) materials.

Crystallography of Dickinsonite-(KMnNa)

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/b {B1 1 2/b} {C2/c} {C1 2/c 1}
Cell Parameters:a = 24.94Å, b = 10.13Å, c = 16.72Å
β = 105.6°
Ratio:a:b:c = 2.462 : 1 : 1.651
Unit Cell Volume:V 4,068.57 ų (Calculated from Unit Cell)
Morphology:Crystals tabular {001}. Commonly pseudo-rhombohedral in habit. Triangular striations on {001}. Frequently foliated to micaceous; curved lamellar; radiated; stellated; and as disseminated scales.

Optical Data of Dickinsonite-(KMnNa)

Type:Biaxial (+)
RI values: nα = 1.648 - 1.658 nβ = 1.655 - 1.662 nγ = 1.662 - 1.671
2V:Measured: 80° to 90°, Calculated: 68° to 88°
Maximum Birefringence:δ = 0.014

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:relatively strong
Pleochroism:Visible
Comments:X = b = Light olive-green
Y = ^c ~ +15° = Lighter olive-green
Z = Very light yellowish green

Chemical Properties of Dickinsonite-(KMnNa)

Formula:
{KNa}{Mn
2+
 
◻}{Ca}{Na
 
3
}{Mn
2+
13
}{Al}(PO
 
4
)
 
12
(OH)
 
2
Essential elements:Al, Ca, H, K, Mn, Na, O, P
All elements listed in formula:Al, Ca, H, K, Mn, Na, O, P

Relationship of Dickinsonite-(KMnNa) to other Species

Series:Forms a series with Arrojadite-(KFe) (see here)
Member of:Arrojadite Group
Other Members of Group:

- +
Arrojadite-(BaFe)
{Ba◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(BaNa)
{Ba◻}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(KFe)
{KNa}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(KFeNa)
{KNa}{Fe
2+
 
◻}{Ca}{Na
 
3
}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(KNa)
{KNa}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(NaFe)
{Na
 
2
}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(PbFe)
{Pb◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Arrojadite-(SrFe)
{Sr◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Ferri-arrojadite-(BaNa)
{Ba◻}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Fe
3+
 
}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
Fluorarrojadite-(BaFe)
{Ba◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)F
 
2
Fluorarrojadite-(KNa)
{KNa}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)F
 
2
Fluorarrojadite-(NaFe)
{Na
 
2
}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)F
 
2
Common Associates:
Lithiophilite
Related Minerals - Nickel-Strunz Grouping):

- +
8.BF.05Arrojadite-(KFe)
{KNa}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Arrojadite-(BaFe)
{Ba◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Arrojadite-(SrFe)
{Sr◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Arrojadite-(KNa)
{KNa}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Arrojadite-(PbFe)
{Pb◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Fluorarrojadite-(BaFe)
{Ba◻}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)F
 
2
8.BF.05Arrojadite-(NaFe)
{Na
 
2
}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Arrojadite-(BaNa)
{Ba◻}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
8.BF.05Fluorarrojadite-(KNa)
{KNa}{Na
 
2
}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)F
 
2
8.BF.05Fluorarrojadite-(NaFe)
{Na
 
2
}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)F
 
2
8.BF.10Samuelsonite
(Ca,Ba)Ca
 
8
Fe
2+
2
Mn
2+
2
Al
 
2
(PO
 
4
)
 
10
(OH)
 
2
8.BF.15Griphite
Na
 
4
Li
 
2
Ca
 
6
(Mn
2+
 
,Fe
2+
 
,Mg)
 
19
Al
 
8
(PO
 
4
)
 
24
(F,OH)
 
8
8.BF.20Nabiasite
BaMn
2+
9
(VO
 
4
,AsO
 
4
)
 
6
(OH)
 
2
Related Minerals - Hey's Index Grouping:

- +
19.12.1Metaswitzerite
Mn
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
19.12.2Bermanite
Mn
2+
 
Mn
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
19.12.3Natrophilite
NaMn
2+
 
PO
 
4
19.12.4Sidorenkite
Na
 
3
Mn
2+
 
(CO
 
3
)(PO
 
4
)
19.12.5Niahite
(NH
 
4
)(Mn
2+
 
,Mg)(PO
 
4
) · H
 
2
O
19.12.6Robertsite
Ca
 
3
Mn
3+
4
(PO
 
4
)
 
3
O
 
2
 · 3H
 
2
O
19.12.7Pararobertsite
Ca
 
2
Mn
3+
3
(PO
 
4
)
 
3
O
 
2
 · 3H
 
2
O
19.12.8Sinkankasite
H
 
2
Mn
2+
 
Al(PO
 
4
)
 
2
(OH) · 6H
 
2
O
19.12.9Mangangordonite
Mn
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
 · 8H
 
2
O
19.12.10Heterosite
(Fe
3+
 
,Mn
3+
 
)PO
 
4
19.12.11Purpurite
(Mn
3+
 
,Fe
3+
 
)PO
 
4
19.12.12Wolfeite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)(OH)
19.12.13Triploidite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(OH)
19.12.14Lipscombite
(Fe
2+
 
,Mn
2+
 
)Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
19.12.15Frondelite
Mn
2+
 
Fe
3+
4
(PO
 
4
)
 
3
(OH)
 
5
19.12.16Rockbridgeite
Fe
2+
 
Fe
3+
4
(PO
 
4
)
 
3
(OH)
 
5
19.12.17Kryzhanovskite
(Fe
3+
 
,Mn
2+
 
)
 
2
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
3
19.12.18Landesite
Mn
2+
3-x
Fe
3+
x
(PO
 
4
)
 
2
(OH)
 
x
 · (3-x)H
 
2
O
19.12.19Phosphoferrite
(Fe
2+
 
,Mn
2+
 
)
 
3
(PO
 
4
)
 
2
 · 3H
 
2
O
19.12.20Reddingite
(Mn,Fe)
 
3
(PO
 
4
)
 
2
 · 3H
 
2
O
19.12.21Earlshannonite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
19.12.22Hureaulite
(Mn,Fe)
 
5
(PO
 
4
)
 
2
(HPO
 
4
)
 
2
 · 4H
 
2
O
19.12.23Switzerite
(Mn,Fe)
 
3
(PO
 
4
)
 
2
 · 7H
 
2
O
19.12.24Laueite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 8H
 
2
O
19.12.25Pseudolaueite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 8H
 
2
O
19.12.26Strunzite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 6H
 
2
O
19.12.27Stewartite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
 · 8H
 
2
O
19.12.28Alluaudite
(Na,Ca)Mn
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
,Mg)
 
2
(PO
 
4
)
 
3
19.12.29Ferroalluaudite
(Na,Ca)Fe
2+
 
(Fe
3+
 
,Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)
 
3
19.12.30Fillowite
{Mn
2+
 
}{Na
 
8
}{Ca
 
4
Na
 
4
}{(Mn
2+
 
,Fe
2+
 
)
 
43
}(PO
 
4
)
 
36
19.12.31Johnsomervilleite
{Ca}{Na
 
6
[ ]
 
2
}{Ca
 
6
Na
 
2
}{(Fe
2+
 
,Mg,Mn
2+
 
)
 
43
}(PO
 
4
)
 
36
19.12.32Wicksite
NaCa
 
2
(Fe
2+
 
,Mn
2+
 
)
 
4
MgFe
3+
 
(PO
 
4
)
 
6
 · 2H
 
2
O
19.12.34Sarcopside
(Fe
2+
 
,Mn
2+
 
,Mg)
 
3
(PO
 
4
)
 
2
19.12.35Ludlamite
(Fe,Mn,Mg)
 
3
(PO
 
4
)
 
2
 · 4H
 
2
O
19.12.36Graftonite
(Fe
2+
 
,Mn
2+
 
,Ca)
 
3
(PO
 
4
)
 
2
19.12.37Wilhelmvierlingite
CaMnFe
3+
 
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
19.12.38Fairfieldite
Ca
 
2
(Mn
2+
 
,Fe
2+
 
)(PO
 
4
)
 
2
 · 2H
 
2
O
19.12.39Beusite
(Mn
2+
 
,Fe
2+
 
,Ca,Mg)
 
3
(PO
 
4
)
 
2
19.12.40Messelite
Ca
 
2
(Fe
2+
 
,Mn
2+
 
)(PO
 
4
)
 
2
 · 2H
 
2
O
19.12.41Jahnsite-(CaMnFe)
{Ca}{Mn
2+
 
}{Fe
2+
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.42Jahnsite-(CaMnMn)
{Ca}{Mn
2+
 
}{Mn
2+
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.43Jahnsite-(CaMnMg)
{Ca}{Mn
2+
 
}{(Mg,Fe
2+
 
)
 
2
}{Fe
3+
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.44Keckite
CaMn
2+
 
Fe
3+
2
Fe
3+
2
(PO
 
4
)
 
4
(OH)
 
3
(H
 
2
O)
 
7
19.12.45Stanfieldite
Ca
 
7
Ca
 
2
Mg
 
9
(PO
 
4
)
 
12
19.12.46Laubmannite
(Fe
2+
 
,Mn
2+
 
,Ca)
 
3
Fe
3+
6
(PO
 
4
)
 
4
(OH)
 
12
19.12.47Zodacite
Ca
 
4
Mn
2+
 
Fe
3+
4
(PO
 
4
)
 
6
(OH)
 
4
 · 12H
 
2
O
19.12.48Hagendorfite
NaCaMn
2+
 
Fe
2+
2
(PO
 
4
)
 
3
19.12.49Maghagendorfite
NaMn(Mg,Fe,Fe)
 
3
(PO
 
4
)
 
3
19.12.50Varulite
NaCaMn
2+
 
Mn
2+
2
(PO
 
4
)
 
3
19.12.51Griphite
Na
 
4
Li
 
2
Ca
 
6
(Mn
2+
 
,Fe
2+
 
,Mg)
 
19
Al
 
8
(PO
 
4
)
 
24
(F,OH)
 
8
19.12.52Attakolite
(Ca,Sr)Mn(Al,Fe)
 
4
(HPO
 
4
,PO
 
4
)
 
3
(SiO
 
4
,PO
 
4
)(OH)
 
4
19.12.53Arrojadite-(KFe)
{KNa}{Fe
2+
 
◻}{Ca}{Na
 
2
◻}{Fe
2+
13
}{Al}(PO
 
4
)
 
11
(HPO
 
4
)(OH)
 
2
19.12.54Lun'okite
(Mn,Ca)(Mg,Fe,Mn)Al(PO
 
4
)
 
2
OH · 4H
 
2
O
19.12.55Eosphorite
(Mn
2+
 
,Fe
2+
 
)Al(PO
 
4
)(OH)
 
2
 · H
 
2
O
19.12.56Ernstite
(Mn
2+
 
,Fe
3+
 
)Al(PO
 
4
)(OH,O)
 
2
 · H
 
2
O
19.12.57Childrenite
(Fe
2+
 
,Mn
2+
 
)Al(PO
 
4
)(OH)
 
2
 · H
 
2
O
19.12.58Bobfergusonite
Na
 
2
Mn
 
5
FeAl(PO
 
4
)
 
6
19.12.59Qingheiite
NaMn
3+
 
Mg(Al,Fe
3+
 
)(PO
 
4
)
 
3
19.12.60Whiteite-(CaFeMg)
{Ca}{(Fe
2+
 
,Mn
2+
 
)}{Mg
 
2
}{Al
 
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.61Whiteite-(CaMnMg)
{Ca}{Mn
2+
 
}{Mg
 
2
}{Al
 
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.62Whiteite-(MnFeMg)
{(Mn
2+
 
,Ca)}{(Fe
2+
 
,Mn
2+
 
)}{Mg
 
2
}{Al
 
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.63Rittmannite
{(Mn
2+
 
,Ca)}{Mn
2+
 
}{(Fe
2+
 
,Mn
2+
 
,Mg)
 
2
}{(Al,Fe
3+
 
)
 
2
}(PO
 
4
)
 
4
(OH)
 
2
 · 8H
 
2
O
19.12.64Zanazziite
Ca
 
2
Mg
 
5
Be
 
4
(PO
 
4
)
 
6
(OH)
 
4
 · 6H
 
2
O
19.12.65Samuelsonite
(Ca,Ba)Ca
 
8
Fe
2+
2
Mn
2+
2
Al
 
2
(PO
 
4
)
 
10
(OH)
 
2

Other Names for Dickinsonite-(KMnNa)

Synonyms:
DickinsoniteIMA2005-048
Other Languages:
German:Dickinsonit
Russian:Диккинсонит-(KMnNa)
Simplified Chinese:绿磷锰矿
Spanish:Dickinsonita

Other Information

Other Information:Soluble in acids.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Dickinsonite-(KMnNa)

Reference List:

- +
Brush and Dana (1878) American Journal of Science: 16: 114 (as Dickinsonite).

Brush and Dana (1890) American Journal of Science: 39: 213.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 68.

Berman and Gonyer (1930) American Mineralogist: 15: 375.

Wolfe (1941) American Mineralogist: 26: 339.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 717-719 (as Dickinsonite).

American Mineralogist (1981): 66: 1034-1049.

Cámara, F., Oberti, R., Chopin, C., Medenbach, O. (2006): The arrojadite enigma: I. A new formula and a new model for the arrojadite structure. American Mineralogist, 91, 1249-1259

Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270.

Mücke, A. & Keck, E. (2011): Karbonate aus dem Pegmatit von Hagendorf-Süd/Opf.: Zusammensetzung, Verbreitung und begleitende Phosphat-Mineralien (Apatit, Hagendorfit und Eosphorit-Gruppe) - darunter einige Neufunde (Triplit, Mineralien der Arrojadit-Dickinsonit Reihe, Goyazit und Variscit). Aufschluss 62, 87-117.

Internet Links for Dickinsonite-(KMnNa)

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    • Localities for Dickinsonite-(KMnNa)

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? 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.
    Australia
     
    • South Australia
      • Olary Province
        • Kalabity homestead area
    		Record of Sth.Aust. mines summary Olary SI5402 card 235
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Plzeň Region
        • Poběžovice (Ronsperg; Ronsberg; Ronsperk)
          • Otov
    		Masau, M., Staněk, J., Černý, P., Chapman, R. (2000). Metasomatic wolfeite and associated phosphates from the Otov I granitic pegmatite, western Bohemia. J. Czech Geol. Soc. 45, 159-173.
    Namibia
     
    • Erongo Region
      • Karibib District
        • Okongava Ost Farm 72
    		P. Keller et al., NJMA 183, 197-201 (2007)
    USA
     
    • Arizona
      • Yavapai Co.
    		AmMin 67: 97-113 (1982)
    • Connecticut
      • Fairfield Co.
    		Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State, p.278
    Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
        • Town of Ridgefield
          • Branchville
    		Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 671, 718, 855.; Rocks & Minerals (1995) 70:396-409
      • Middlesex Co.
        • Portland
          • Collins Hill
            • Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries)
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 702, 718; Januzzi, 1976. Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press); Rocks & Minerals (1955) 30:351-358
    • Maine
      • Androscoggin Co.
        • Auburn
          • East Mount Apatite District
    		No reference listed
    "Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
          • West Mount Apatite District
    		No reference listed
    No reference listed
    No reference listed
        • Poland
    		King, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
      • Oxford Co.
        • Greenwood
    		"Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
          • Uncle Tom Mountain
    		No reference listed
        • Hebron
    		Van King
        • Newry
    		King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3.
        • Rumford
    		Guidebook 1 to Mineral Collecting in the Maine Pegmatite Belt
    • New Hampshire
      • Cheshire Co.
        • Alstead
    		Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
      • Grafton Co.
        • Alexandria
    		Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
        • Groton
    		Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    Morrill, 1960. NH Mines and Minerals Localities, 2nd ed. ; Am. Min. 50 (1965), 713-717
      • Sullivan Co.
        • Newport
    		Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    • North Carolina
      • Gaston Co.
        • Bessemer City
    		No reference listed
    • South Dakota
      • Pennington Co.
        • Keystone District
          • Keystone
    		Seaman, 1976. Pegmatite Minerals of the World
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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