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Ferroceladonite

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Formula:
K(Fe
2+
 
,Mg)(Fe
3+
 
,Al)(Si
 
4
O
 
10
)(OH)
 
2
System:MonoclinicColour:Medium green
Lustre:Waxy, EarthyHardness:2 - 2½
Member of:Mica Group
Name:Named for its composition and the French "celadon" (sea-green), in allusion to its color


Mica Group.

The iron(II) analogue of celadonite.

Classification of Ferroceladonite

IMA status:Approved
Strunz 8th edition ID:8/H.10-40
Nickel-Strunz 10th (pending) edition ID:9.EC.15

9 : SILICATES (Germanates)
E : Phyllosilicates
C : Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
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Type Occurrence of Ferroceladonite

Type Locality:Hokonui Hills, South Island, New Zealand

Physical Properties of Ferroceladonite

Lustre:Waxy, Earthy
Diaphaneity (Transparency):Translucent, Opaque
Colour:Medium green
Hardness (Mohs):2 - 2½

Crystallography of Ferroceladonite

Crystal System:Monoclinic
Cell Parameters:a = 5.270Å, b = 9.106Å, c = 10.125Å
β = 100.27°
Ratio:a:b:c = 0.579 : 1 : 1.112
Unit Cell Volume:V 478.10 ų (Calculated from Unit Cell)
Z:2
Morphology:Waxy to earthy fine-grained dense masses.
X-Ray Powder Diffraction:
d-spacingIntensity
10.0 (40)
4.55 (32)
4.37 (30)
4.14 (35)
3.65 (52)
3.358 (86)
3.321 (100)
3.090 (60)
2.91 (40)
2.671 (48)
2.607 (40)
2.584 (50)
2.41 (35)
2.155 (33)
1.660 (40)
1.519 (40)

Optical Data of Ferroceladonite

Type:Biaxial
Dispersion:relatively weak

Chemical Properties of Ferroceladonite

Formula:
K(Fe
2+
 
,Mg)(Fe
3+
 
,Al)(Si
 
4
O
 
10
)(OH)
 
2
Essential elements:Fe, H, K, O, Si
All elements listed in formula:Al, Fe, H, K, Mg, O, Si

Relationship of Ferroceladonite to other Species

Member of:Mica Group
Other Members of Group:

- +
Aluminoceladonite
K(Mg,Fe
2+
 
)Al(Si
 
4
O
 
10
)(OH)
 
2
Anandite
(Ba,K)(Fe
2+
 
,Mg)
 
3
((Si,Al,Fe)
 
4
O
 
10
)(S,OH)
 
2
Aspidolite
NaMg
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
Biotite
Bityite
LiCaAl
 
2
(AlBeSi
 
2
O
 
10
)(OH)
 
2
Boromuscovite
KAl
 
2
(BSi
 
3
O
 
10
)(OH)
 
2
Celadonite
K(Mg,Fe
2+
 
)Fe
3+
 
(Si
 
4
O
 
10
)(OH)
 
2
Chernykhite
(Ba,Na)(V
3+
 
,Al,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
Chromceladonite
K(Mg,Fe
2+
 
)(Cr,Al)(Si
 
4
O
 
10
)(OH)
 
2
Chromphyllite
K(Cr,Al)
 
2
(AlSi
 
3
O
 
10
)(OH,F)
 
2
Clintonite
Ca(Mg,Al)
 
3
(Al
 
3
SiO
 
10
)(OH)
 
2
Ephesite
LiNaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
Ferro-aluminoceladonite
K(Fe
2+
 
,Mg)(Al,Fe
3+
 
)(Si
 
4
O
 
10
)(OH)
 
2
Ferrokinoshitalite
(Ba,K)(Fe
2+
 
,Mg)
 
3
(Al
 
2
Si
 
2
O
 
10
)(OH,F)
 
2
Ganterite
(Ba,Na,K)(Al,Mg)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
Glauconite
(K,Na)(Fe
3+
 
,Al,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
Hendricksite
K(Zn,Mg,Mn
2+
 
)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
Illite
K
 
0.65
Al
 
2.0
[ ][Al
 
0.65
Si
 
3.35
O
 
10
](OH)
 
2
Kinoshitalite
(Ba,K)(Mg,Mn
2+
 
,Al)
 
3
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
Lepidolite
Luanshiweiite-2M1
KLiAl
 
1.5
(Si
 
3.5
Al
 
0.5
)O
 
10
(OH)
 
2
Margarite
CaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
Masutomilite
(K,Rb)(Li,Mn
3+
 
,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
Montdorite
(K,Na)
 
2
(Fe
2+
 
,Mn
2+
 
,Mg)
 
5
(Si
 
4
O
 
10
)
 
2
(OH,F)
 
4
Muscovite
KAl
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
Nanpingite
CsAl
 
2
(AlSi
 
3
O
 
10
)(OH,F)
 
2
Norrishite
KLiMn
3+
2
(Si
 
4
O
 
10
)O
 
2
Oxykinoshitalite
(Ba,K)(Mg,Ti,Fe
3+
 
,Fe
2+
 
)
 
3
((Si,Al)
 
4
O
 
10
)(O,OH,F)
 
2
Oxyphlogopite
K(Mg,Ti,Fe)
 
3
[(Si,Al)
 
4
O
 
10
](O,F)
 
2
Phengite
Phlogopite
KMg
 
3
(AlSi
 
3
O
 
10
)(OH,F)
 
2
Polylithionite
KLi
 
2
Al(Si
 
4
O
 
10
)(F,OH)
 
2
Preiswerkite
NaMg
 
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
Roscoelite
K(V
3+
 
,Al)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
Shirokshinite
KNaMg
 
2
(Si
 
4
O
 
10
)F
 
2
Shirozulite
K(Mn
2+
 
,Mg)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
Siderophyllite
KFe
2+
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
Sokolovaite
CsLi
 
2
Al(Si
 
4
O
 
10
)F
 
2
Suhailite
(NH
 
4
)Fe
2+
3
(AlSi
 
3
O
 
10
)(OH)
 
2
Tainiolite
KLiMg
 
2
(Si
 
4
O
 
10
)F
 
2
Tetraferriphlogopite
KMg
 
3
(Fe
3+
 
Si
 
3
O
 
10
)(OH,F)
 
2
Tobelite
(NH
 
4
,K)Al
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
Trilithionite
K(Li,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
Voloshinite
Rb(LiAl
 
1.5
 
1.5
)(Al
 
0.5
Si
 
3.5
)O
 
10
F
 
2
Yangzhumingite
KMg
 
2.5
(Si
 
4
O
 
10
)F
 
2
Zinnwaldite
KLiFe
2+
 
Al(AlSi
 
3
O
 
10
)(F,OH)
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
9.EC.05Minnesotaite
(Fe,Mg)
 
3
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.05Talc
Mg
 
3
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.05Willemseite
(Ni,Mg)
 
3
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.10Ferripyrophyllite
Fe
3+
2
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.10Pyrophyllite
Al
 
2
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Boromuscovite
KAl
 
2
(BSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Celadonite
K(Mg,Fe
2+
 
)Fe
3+
 
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Chernykhite
(Ba,Na)(V
3+
 
,Al,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
9.EC.15Montdorite
(K,Na)
 
2
(Fe
2+
 
,Mn
2+
 
,Mg)
 
5
(Si
 
4
O
 
10
)
 
2
(OH,F)
 
4
9.EC.15Muscovite
KAl
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Nanpingite
CsAl
 
2
(AlSi
 
3
O
 
10
)(OH,F)
 
2
9.EC.15Paragonite
NaAl
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Roscoelite
K(V
3+
 
,Al)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Tobelite
(NH
 
4
,K)Al
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.15Aluminoceladonite
K(Mg,Fe
2+
 
)Al(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Chromphyllite
K(Cr,Al)
 
2
(AlSi
 
3
O
 
10
)(OH,F)
 
2
9.EC.15Ferro-aluminoceladonite
K(Fe
2+
 
,Mg)(Al,Fe
3+
 
)(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Chromceladonite
K(Mg,Fe
2+
 
)(Cr,Al)(Si
 
4
O
 
10
)(OH)
 
2
9.EC.15Tainiolite
KLiMg
 
2
(Si
 
4
O
 
10
)F
 
2
9.EC.15Ganterite
(Ba,Na,K)(Al,Mg)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Annite
KFe
2+
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Ephesite
LiNaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Hendricksite
K(Zn,Mg,Mn
2+
 
)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Masutomilite
(K,Rb)(Li,Mn
3+
 
,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20Norrishite
KLiMn
3+
2
(Si
 
4
O
 
10
)O
 
2
9.EC.20Phlogopite
KMg
 
3
(AlSi
 
3
O
 
10
)(OH,F)
 
2
9.EC.20Polylithionite
KLi
 
2
Al(Si
 
4
O
 
10
)(F,OH)
 
2
9.EC.20Preiswerkite
NaMg
 
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Siderophyllite
KFe
2+
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Tetraferriphlogopite
KMg
 
3
(Fe
3+
 
Si
 
3
O
 
10
)(OH,F)
 
2
9.EC.20Fluorotetraferriphlogopite
KMg
 
3
(Fe
3+
 
Si
 
3
O
 
10
)F
 
2
9.EC.20Wonesite
(Na,K)(Mg,Fe,Al)
 
6
((Al,Si)
 
4
O
 
10
)
 
2
(OH,F)
 
4
9.EC.20Eastonite
KMg
 
2
Al(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.20Tetraferriannite
KFe
2+
3
((Fe
3+
 
,Al)Si
 
3
O
 
10
)(OH)
 
2
9.EC.20Trilithionite
K(Li,Al)
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20Fluorannite
KFe
2+
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20Shirokshinite
KNaMg
 
2
(Si
 
4
O
 
10
)F
 
2
9.EC.20Shirozulite
K(Mn
2+
 
,Mg)
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Sokolovaite
CsLi
 
2
Al(Si
 
4
O
 
10
)F
 
2
9.EC.20Aspidolite
NaMg
 
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Fluorophlogopite
KMg
 
3
(AlSi
 
3
O
 
10
)(F,OH)
 
2
9.EC.20UM2004-49-SiO:AlCsFHKLi
(Cs,K)(Al,Li)
 
2.6
((Si,Al)
 
4
O
 
10
)(F,OH)
 
2
9.EC.20Suhailite
(NH
 
4
)Fe
2+
3
(AlSi
 
3
O
 
10
)(OH)
 
2
9.EC.20Yangzhumingite
KMg
 
2.5
(Si
 
4
O
 
10
)F
 
2
9.EC.20IMA2009-006
KLi
 
2
Ti(Si
 
4
O
 
10
)OF
9.EC.20Oxyphlogopite
K(Mg,Ti,Fe)
 
3
[(Si,Al)
 
4
O
 
10
](O,F)
 
2
9.EC.25Brammallite
(Na,H
 
3
O)(Al,Mg,Fe)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
9.EC.30Margarite
CaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.35Anandite
(Ba,K)(Fe
2+
 
,Mg)
 
3
((Si,Al,Fe)
 
4
O
 
10
)(S,OH)
 
2
9.EC.35Bityite
LiCaAl
 
2
(AlBeSi
 
2
O
 
10
)(OH)
 
2
9.EC.35Clintonite
Ca(Mg,Al)
 
3
(Al
 
3
SiO
 
10
)(OH)
 
2
9.EC.35Kinoshitalite
(Ba,K)(Mg,Mn
2+
 
,Al)
 
3
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
9.EC.35Ferrokinoshitalite
(Ba,K)(Fe
2+
 
,Mg)
 
3
(Al
 
2
Si
 
2
O
 
10
)(OH,F)
 
2
9.EC.35Oxykinoshitalite
(Ba,K)(Mg,Ti,Fe
3+
 
,Fe
2+
 
)
 
3
((Si,Al)
 
4
O
 
10
)(O,OH,F)
 
2
9.EC.35Fluorokinoshitalite
BaMg
 
3
(Al
 
2
Si
 
2
O
 
10
)F
 
2
9.EC.40Beidellite
(Na,Ca
 
0.5
)
 
0.3
Al
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· nH
 
2
O
9.EC.40Kurumsakite
(Zn,Ni,Cu)
 
8
Al
 
8
V
5+
2
Si
 
5
O
 
35
· 27H
 
2
O (?)
9.EC.40Montmorillonite
(Na,Ca)
 
0.33
(Al,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
· nH
 
2
O
9.EC.40Nontronite
Na
 
0.3
Fe
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· nH
 
2
O
9.EC.40Volkonskoite
Ca
 
0.3
(Cr,Mg,Fe)
 
2
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· 4H
 
2
O
9.EC.40Yakhontovite
(Ca,Na)
 
0.5
(Cu,Fe,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
· 3H
 
2
O
9.EC.45Hectorite
Na
 
0.3
(Mg,Li)
 
3
(Si
 
4
O
 
10
)(F,OH)
 
2
9.EC.45Saponite
Ca
 
0.25
(Mg,Fe)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· nH
 
2
O
9.EC.45Sauconite
Na
 
0.3
Zn
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· 4H
 
2
O
9.EC.45Spadaite
MgSiO
 
2
(OH)
 
2
· H
 
2
O (?)
9.EC.45Stevensite
(Ca,Na)
 
x
Mg
 
3-x
(Si
 
4
O
 
10
)(OH)
 
2
9.EC.45Swinefordite
Li(Al,Li,Mg)
 
4
((Si,Al)
 
4
O
 
10
)
 
2
(OH,F)
 
4
· nH
 
2
O
9.EC.45Zincsilite
Zn
 
3
(Si
 
4
O
 
10
)(OH)
 
2
· 4H
 
2
O
9.EC.45Ferrosaponite
Ca
 
0.3
(Fe
2+
 
,Mg,Fe
3+
 
)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
· 4H
 
2
O
9.EC.50Vermiculite
(Mg,Fe,Al)
 
3
((Al,Si)
 
4
O
 
10
)(OH)
 
2
· 4H
 
2
O
9.EC.55Baileychlore
(Zn,Fe,Al,Mg)
 
6
((Si,Al)
 
4
O
 
10
)(OH)
 
8
9.EC.55Chamosite
(Fe
2+
 
,Mg)
 
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Clinochlore
(Mg,Fe
2+
 
)
 
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Cookeite
LiAl
 
4
(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Franklinfurnaceite
Ca
 
2
Fe
3+
 
Mn
2+
3
Mn
3+
 
(Zn
 
2
Si
 
2
O
 
10
)(OH)
 
8
9.EC.55Gonyerite
(Mn
2+
 
,Mg)
 
5
Fe
3+
 
(Fe
3+
 
Si
 
3
O
 
10
)(OH)
 
8
9.EC.55Nimite
(Ni,Mg,Al)
 
6
((Si,Al)
 
4
O
 
10
)(OH)
 
8
9.EC.55Orthochamosite
(Fe
2+
 
,Mg,Fe
3+
 
)
 
5
Al(AlSi
 
3
O
 
10
)(OH,O)
 
8
9.EC.55Pennantite
Mn
2+
5
Al(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Sudoite
(Mg,Fe
2+
 
)
 
2
Al
 
3
(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Donbassite
Al
 
4.33
(AlSi
 
3
O
 
10
)(OH)
 
8
9.EC.55Glagolevite
Na(Mg,Al)
 
6
(AlSi
 
3
O
 
10
)(OH,O)
 
8
9.EC.55Borocookeite
Li
 
1+3x
Al
 
4-x
(BSi
 
3
O
 
10
)(OH)
 
8
9.EC.60Aliettite
Ca
 
0.2
Mg
 
6
((Si,Al)
 
8
O
 
20
)(OH)
 
4
· 4H
 
2
O
9.EC.60Corrensite
(Mg,Fe)
 
9
((Si,Al)
 
8
O
 
20
)(OH)
 
10
· nH
 
2
O
9.EC.60Dozyite
Mg
 
7
Al
 
2
(Al
 
2
Si
 
4
O
 
15
)(OH)
 
12
9.EC.60Hydrobiotite
K(Mg,Fe
2+
 
)
 
6
((Si,Al)
 
8
O
 
20
)(OH)
 
4
· nH
 
2
O
9.EC.60Karpinskite
(Ni,Mg)
 
2
Si
 
2
O
 
5
(OH)
 
2
(?)
9.EC.60Kulkeite
Mg
 
8
Al(AlSi
 
7
O
 
20
)(OH)
 
10
9.EC.60Lunijianlaite
Li
 
0.7
Al
 
6.2
(AlSi
 
7
lO
 
20
)(OH,O)
 
10
9.EC.60Rectorite
(Na,Ca)Al
 
4
((Si,Al)
 
8
O
 
20
)(OH)
 
4
· 2H
 
2
O
9.EC.60Saliotite
(Li,Na)Al
 
3
(AlSi
 
3
O
 
10
)(OH)
 
5
9.EC.60Tosudite
Na
 
0.5
(Al,Mg)
 
6
((Si,Al)
 
8
O
 
18
)(OH)
 
12
· 5H
 
2
O
9.EC.60Brinrobertsite
Na
 
0.3
Al
 
4
(Si
 
4
O
 
10
)
 
2
(OH)
 
4
· 3.5 H
 
2
O
9.EC.65Macaulayite
(Fe,Al)
 
24
Si
 
4
O
 
43
(OH)
 
2
9.EC.70Burckhardtite
Pb
 
2
(Fe
3+
 
,Mn
3+
 
)Te
4+
 
(AlSi
 
3
O
 
10
)O
 
2
(OH)
 
2
· H
 
2
O
9.EC.75Ferrisurite
(Pb,Ca)
 
2.4
Fe
3+
2
(Si
 
4
O
 
10
)(CO
 
3
)
 
1.7
(OH)
 
3
· nH
 
2
O
9.EC.75Surite
(Pb,Ca)
 
3
(Al,Fe
2+
 
,Mg)
 
2
((Si,Al)
 
4
O
 
10
)(CO
 
3
)
 
2
(OH)
 
2
9.EC.75Niksergievite
(Ba,Ca)
 
2
Al
 
3
(AlSi
 
3
O
 
10
)(CO
 
3
)(OH)
 
6
· nH
 
2
O
9.EC.80Kegelite
Pb
 
8
Al
 
4
(Si
 
8
O
 
20
)(SO
 
4
)
 
2
(CO
 
3
)
 
4
(OH)
 
8

Other Names for Ferroceladonite

Synonyms:
IMA1995-018
Other Languages:
German:Ferroceladonit
Japanese:鉄セラドン石
Spanish:Ferroceladonita

Other Information

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 Ferroceladonite

Reference List:

- +
Mineralogical Record: 29: 469.

Canadian Mineralogist: 36: 05-912.

American Mineralogist: 82: 503-511.

Internet Links for Ferroceladonite

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  • Localities for Ferroceladonite

    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.
    (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.
    Canada
     
    • Québec
      • Montérégie
        • Lajemmerais RCM
          • Varennes & St-Amable
            • Saint-Amable sill
    HORVÁTH, L. (2010) The minerals of the Saint-Amable sill: an update. MICRONEWS 44(4), 23-28.
        • Rouville RCM
          • Mont Saint-Hilaire
    HORVÁTH, L. & PFENNINGER-HORVÁTH, E. (2000) I minerali di Mont-Saint-Hilaire (Québec, Canada) Rivista Mineralogica Italiana, XXIV, 140-202 (in Italian with English summary).
      • Montréal
    Horváth Collection - confirmed by XRD
    New Zealand
     
    • South Island
      • Canterbury
        • Rangitata Valley
    J. Thornton in Micro-Scope, November 1997
    AM 82 (1997)
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
    UK
     
    • England
      • Somerset
        • Cranmore
    Turner, R.W. and Rumsey, M.S. (2010): Mineral Relationships in the Mendip Hills. Journal of the Russell Society, vol 13, pp 3-46.
    USA
     
    • Arkansas
      • Saline Co.
        • Granite Mountain complex
          • Sweet Home
    Horváth Collection - confirmed by XRD
    Mineral and/or Locality
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