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Chromceladonite

Big Photo

Srednyaya Padma U-V deposit, Zaonezhie peninsula, Lake Onega, Karelia Republic, Northern Region, Russia
© Knut Eldjarn

Formula:
K(Mg,Fe
2+
 
)(Cr,Al)[(OH)
 
2
|Si
 
4
O
 
10
]
System:MonoclinicColour:Emerald green
Lustre:VitreousHardness:1 - 2
Name:For its relationship to Celadonite
This page provides mineralogical data about Chromceladonite.

Classification of Chromceladonite

IMA status:Approved
Strunz 8th edition ID:8/H.10-45
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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Physical Properties of Chromceladonite

Lustre:Vitreous
Colour:Emerald green
Streak:Pale green
Hardness (Mohs):1 - 2

Crystallography of Chromceladonite

Crystal System:Monoclinic

Optical Data of Chromceladonite

Type:Biaxial (-)
RI values: nα = 1.605 nβ = 1.648 nγ = 1.654
Maximum Birefringence:δ = 0.049

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:strong

Chemical Properties of Chromceladonite

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

Relationship of Chromceladonite to other Species

Member of Group:
Mica Group:
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
 
2
Si
 
4
O
 
10
(OH)
 
2
9.EC.10Pyrophyllite
Al
 
2
Si
 
4
O
 
10
(OH)
 
2
9.EC.15Boromuscovite
KAl
 
2
[(OH)
 
2
|BSi
 
3
O
 
10
]
9.EC.15Celadonite
K(Mg,Fe
2+
 
)(Fe
3+
 
,Al)[(OH)
 
2
|Si
 
4
O
 
10
]
9.EC.15Chernykhite
(Ba,Na)(V
3+
 
,Al,Mg)
 
2
[(OH)
 
2
|(Si,Al)
 
4
O
 
10
]
9.EC.15Montdorite
(K,Na)
 
2
(Fe
2+
 
,Mn
2+
 
,Mg)
 
5
[(OH,F)
 
2
|Si
 
4
O
 
10
]
 
2
9.EC.15Muscovite
KAl
 
2
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.15Nanpingite
CsAl
 
2
[(OH,F)
 
2
|AlSi
 
3
O
 
10
]
9.EC.15Paragonite
NaAl
 
2
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.15Roscoelite
K(V,Al)
 
2
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.15Tobelite
(NH
 
4
,K)Al
 
2
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.15Aluminoceladonite
K(Mg,Fe
2+
 
)(Al,Fe
3+
 
)[(OH)
 
2
|Si
 
4
O
 
10
]
9.EC.15Chromphyllite
K(Cr,Al)
 
2
[(OH,F)
 
2
|AlSi
 
3
O
 
10
]
9.EC.15Ferro-aluminoceladonite
K(Fe
2+
 
,Mg)(Al,Fe
3+
 
)[(OH)
 
2
|Si
 
4
O
 
10
]
9.EC.15Ferroceladonite
K(Fe
2+
 
,Mg)(Fe
3+
 
,Al)[(OH)
 
2
|Si
 
4
O
 
10
]
9.EC.15Tainiolite
KLiMg
 
2
[F
 
2
|Si
 
4
O
 
10
]
9.EC.15Ganterite
(Ba,Na,K)(Al,Mg)
 
2
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Annite
KFe
2+
3
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Ephesite
NaLiAl
 
2
[(OH)
 
2
|Al
 
2
Si
 
2
O
 
10
]
9.EC.20Hendricksite
K(Zn,Mg,Mn
2+
 
)
 
3
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Masutomilite
(K,Rb)(Li,Mn
3+
 
,Al)
 
3
[(F,OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Norrishite
KLiMn
2+
2
[(OH)
 
2
|Si
 
4
O
 
10
]
9.EC.20Phlogopite
KMg
 
3
[(OH,F)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Polylithionite
KLi
 
2
Al[(F,OH)
 
2
|Si
 
4
O
 
10
]
9.EC.20Preiswerkite
NaMg
 
2
Al[(OH)
 
2
|Al
 
2
Si
 
2
O
 
10
]
9.EC.20Siderophyllite
KFe
2+
2
Al[Al
 
2
Si
 
2
O
 
10
](OH)
 
2
9.EC.20Tetra-ferriphlogopite
KMg
 
3
[(OH,F)
 
2
|(Fe
3+
 
,Al)Si
 
3
O
 
10
]
9.EC.20Wonesite
(Na,K)(Mg,fe,Al)
 
6
(Al,Si)
 
8
O
 
20
(OH,F)
 
4
9.EC.20Zinnwaldite
KLiFe
2+
 
Al[(F,OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Eastonite
KMg
 
2
Al[(OH)
 
2
|Al
 
2
Si
 
2
O
 
10
]
9.EC.20Tetraferriannite
KFe
2+
3
[(OH)
 
2
|(Fe
3+
 
,Al)Si
 
3
O
 
10
]
9.EC.20Trilithionite
K(Li,Al)
 
3
[(F,OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Fluorannite
KFe
2+
3
[(F,OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Shirokshinite
KNaMg
 
2
[F
 
2
|Si
 
4
O
 
10
]
9.EC.20Shirozulite
K(Mn
2+
 
,Mg)
 
3
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Sokolovaite
CsLi
 
2
AlSi
 
4
O
 
10
F
 
2
9.EC.20Aspidolite
NaMg
 
3
[(OH)
 
2
|AlSi
 
3
O
 
10
]
9.EC.20Fluorophlogopite
KMg
 
3
[(F,OH)
 
2
|AlSi
 
3
O
 
10
]
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
 
3
(Si
 
3
Al)O
 
10
(OH)
 
2
9.EC.20IMA2009-017
KMg
 
2.5
[Si
 
4
O
 
10
]F
 
2
9.EC.20IMA2009-006
KLi
 
2
TiSi
 
4
O
 
11
F
9.EC.25Brammallite
Na
 
0.65
Al
 
2.0
ٱAl
 
0.65
Si
 
3.35
O
 
10
(OH)
 
2
9.EC.30Margarite
CaAl
 
2
[(OH)
 
2
|Al
 
2
Si
 
2
O
 
10
]
9.EC.35Anandite
(Ba,K)(Fe
2+
 
,Mg)
 
3
[(O,OH)
 
2
|(Si,Al,Fe)
 
4
O
 
10
]
9.EC.35Bityite
CaLiAl
 
2
[(OH)
 
2
|BeAlSi
 
2
O
 
10
]
9.EC.35Clintonite
Ca(Mg,Al)
 
3
[(OH)
 
2
|Al
 
3
SiO
 
10
]
9.EC.35Kinoshitalite
(Ba,K)(Mg,Mn
2+
 
,Al)
 
3
[(OH)
 
2
|Al
 
2
Si
 
2
O
 
10
]
9.EC.35Ferrokinoshitalite
(Ba,K)(Fe
2+
 
,Mg)
 
3
[(OH,F)
 
2
|Al
 
2
Si
 
2
O
 
10
]
9.EC.35Oxykinoshitalite
(Ba,K)(Mg,Ti,Fe
3+
 
,Fe
2+
 
)
 
3
[(O,OH,F)
 
2
|(Si,Al)
 
4
O
 
10
]
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
 
2
Si
 
5
O
 
35
·27H
 
2
O (or near)
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.40Smectite
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
Si
 
4
O
 
10
(OH)
 
2
9.EC.45Swinefordite
Li(Al,Li,Mg)
 
4
(Si,Al)
 
8
O
 
20
,(OH,F)
 
4
·xH
 
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
ยท4H
 
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[(OH)
 
8
|AlSi
 
3
O
 
10
]
9.EC.55Clinochlore
(Mg,Fe
2+
 
)
 
5
Al[(OH)
 
8
|AlSi
 
3
O
 
10
]
9.EC.55Cookeite
LiAl
 
4
(Si
 
3
Al)O
 
10
(OH)
 
8
9.EC.55Franklinfurnaceite
Ca
 
2
FeMn
 
3
MnZn
 
2
Si
 
2
O
 
10
(OH)
 
8
9.EC.55Gonyerite
(Mn,Mg)
 
5
Fe(Si
 
3
Fe)O
 
10
(OH)
 
8
9.EC.55Nimite
(Ni,Mg,Al)
 
6
(Si,Al)
 
4
O
 
10
(OH)
 
8
9.EC.55Orthochamosite
(Fe,Mg,Fe)
 
5
Al(Si
 
3
Al)O
 
10
(OH,O)
 
8
9.EC.55Pennantite
(Mn
 
5
Al)(Si
 
3
Al)O
 
10
(OH)
 
8
9.EC.55Sudoite
(Mg,Fe
2+
 
)
 
2
Al
 
3
[(OH)
 
8
|AlSi
 
3
O
 
10
]
9.EC.55Donbassite
Al
 
2
[Al
 
2.33
][Si
 
3
AlO
 
10
](OH)
 
8
9.EC.55Glagolevite
Na(Mg,Al)
 
6
[(OH,O)
 
8
|AlSi
 
3
O
 
10
]
9.EC.55Borocookeite
Li
 
1+3x
Al
 
4-x
[(BSi
 
3
)O
 
10
](OH)
 
8
 [0.00 <= x <=0.33]
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
[(OH)
 
12
|Al
 
2
Si
 
4
O
 
15
]
9.EC.60Hydrobiotite
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
(Si
 
7
AlO
 
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
 
0.5
Na
 
0.5
Al
 
3
Si
 
3
AlO
 
10
(OH)
 
5
9.EC.60Tosudite
9.EC.60Brinrobertsite
Na
 
0.3
Al
 
4
[(OH)
 
2
|Si
 
4
O
 
10
]
 
2
 · 3.5 H
 
2
O
9.EC.65Macaulayite
(Fe,Al)
 
24
Si
 
4
O
 
43
(OH)
 
2
9.EC.70Burckhardtite
Pb
 
2
(Fe,Mn)AlTeO
 
2
Si
 
3
O
 
10
(OH)
 
2
·H
 
2
O
9.EC.75Ferrisurite
(Pb,Ca)
 
2-3
(CO
 
3
)
 
1.5-2
(OH,F)
 
0.5-1
[(Fe,Al)
 
2
Si
 
4
O
 
10
(OH)
 
2
]·nH
 
2
O
9.EC.75Surite
Pb(Pb,Ca)(CO
 
3
)
 
2
(Al,Fe,Mg)
 
2
(Si,Al)
 
4
O
 
10
(OH)
 
2
9.EC.75Niksergievite
(Ba,Ca)
 
2
(Al,Si)
 
7
O
 
10
(CO
 
3
)(OH)
 
6
·nH
 
2
O
9.EC.80Kegelite
Pb
 
12
(Zn,Fe)
 
2
Al
 
4
(SO
 
4
)
 
4
Si
 
11
O
 
38
 or near

Other Names for Chromceladonite

Synonyms:
IMA1999-024
Other Languages:
German:Chromceladonit
Spanish:Chromceladonita

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 Chromceladonite

Reference List:Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 129(1): 38-44.

Internet Links for Chromceladonite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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