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Tschermakite

Big Photo

Bohemia (Böhmen; Boehmen), Czech Republic
© 2008, J. Weissman

Show Tschermakite Photos (8)
Formula:
☐[Ca
 
2
][Mg
 
3
Fe
3+
 
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
System:MonoclinicColour:Medium green to dark ...
Lustre:VitreousHardness:5 - 6
Name:
Named after Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist


Amphibole Group, Calcic Clino-Amphibole Subgroup

Classification of Tschermakite

IMA status:Approved
Strunz 8th edition ID:8/F.10-60
Nickel-Strunz 10th (pending) edition ID:9.DE.10

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
Hey's CIM Ref.:16.11.4

16 : Silicates Containing Aluminum and other Metals
11 : Aluminosilicates of Ca and Mg with or without alkalis
mindat.org URL:http://www.mindat.org/min-4035.html
Please feel free to link to this page.

Occurrences of Tschermakite

Geological Setting:Eclogites and other ultramafic rocks, amphibolites or other medium to high grade metamorphic rocks.

Physical Properties of Tschermakite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Medium green to dark green to green-black to black, brown (rare).
Streak:Pale grey-green
Hardness (Mohs):5 - 6
Tenacity:Brittle
Cleavage:Perfect
on {110}
Parting:on {100}{001}
Density (measured):3.15 g/cm3
Density (calculated):3.25 g/cm3

Crystallography of Tschermakite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m {B1 1 2/m} {C2/m} {C1 2/m 1}
Cell Parameters:a = 9.762(6) Å, b = 17.994(12) Å, c = 5.325(6) Å
β = 105.10(8)°
Ratio:a:b:c = 0.543 : 1 : 0.296
Unit Cell Volume:V 903.08 ų (Calculated from Unit Cell)
Z:2
Morphology:Prismatic crystals, reaction rims on other minerals.
Twinning:single or multiple parallel to {100}

Optical Data of Tschermakite

Type:Biaxial (-)
RI values: nα = 1.623 - 1.660 nβ = 1.630 - 1.680 nγ = 1.638 - 1.688
2V:Measured: 60° to 90°
Maximum Birefringence:δ = 0.015 - 0.028

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v strong
Pleochroism:Visible
Comments:In browns and greens

Chemical Properties of Tschermakite

Formula:
☐[Ca
 
2
][Mg
 
3
Fe
3+
 
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
Essential elements:Al, Ca, Fe, H, Mg, O, Si
All elements listed in formula:Al, Ca, Fe, H, Mg, O, Si
Common Impurities:Ti,Mn,Na,K,H2O

Relationship of Tschermakite to other Species

Series:Forms a series with Ferrotschermakite (see here)
Member of Group:
Calcic Clino-Amphibole Subgroup:
Common Associates:
KyaniteGarnet Group
Related Minerals - Nickel-Strunz Grouping):

- +
9.DE.05Anthophyllite
☐[Mg
 
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Cummingtonite
[ ][Mg
 
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Clinoferroholmquistite
[ ][Li
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Grunerite
[ ][Fe
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Manganocummingtonite
[ ][Mn
2+
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Manganogrunerite
[ ][Mn
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Permanganogrunerite
[ ][Mn
2+
2
][Mn
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.05Fluoro-sodic-ferropedrizite
NaLi
 
2
(Fe
 
2
Al
 
2
Li)(Si
 
6
Al
 
2
)O
 
22
F
 
2
9.DE.10Actinolite
☐Ca
 
2
(Mg,Fe
2+
 
)
 
5
(Si
 
8
O
 
22
)(OH)
 
2
9.DE.10Alumino-ferro-hornblende
Ca
 
2
Fe
 
4
Al
 
2
Si
 
7
O
 
22
(OH)
 
2
9.DE.10Alumino-magnesio-hornblende
Ca
 
2
Mg
 
4
Al
 
2
Si
 
7
O
 
22
(OH)
 
2
9.DE.10Aluminotschermakite
☐[Ca
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.10Ferritschermakite
☐[Ca
 
2
][Mg
 
3
Fe
3+
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.10Ferro-Actinolite
☐[Ca
 
2
][(Fe
2+
 
,Mg)
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.10Ferrohornblende
☐[Ca
 
2
][Fe
2+
4
Al][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.10Ferrotschermakite
☐[Ca
 
2
][Fe
2+
3
Fe
3+
 
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.10Joesmithite
PbCa
 
2
Mg
 
3
Fe
3+
2
[Si
 
6
Be
 
2
O
 
22
](OH)
 
2
9.DE.10Magnesiohornblende
☐[Ca
 
2
][Mg
 
4
Al][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.10Tremolite
☐[Ca
 
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.10Ferri-Ferrotschermakite
9.DE.10Alumino-Ferrotschermakite
9.DE.10Cannilloite
[Ca][Ca
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.10Fluor-cannilloite
[Ca][Ca
 
2
][Mg
 
4
Al][(F,OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.10Parvo-manganotremolite
☐[CaMn
2+
 
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.10Fluorotremolite
☐[Ca
 
2
][Mg
 
5
][F
 
2
|Si
 
8
O
 
22
]
9.DE.15Edenite
Na[Ca
 
2
][Mg
 
5
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.15Ferro-edenite
[Na][Ca
 
2
][Fe
2+
5
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.15Ferrokaersutite
[Na][Ca
 
2
][Fe
2+
4
Ti][O|OH|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Ferropargasite
[Na][Ca
 
2
][Fe
2+
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Hastingsite
[Na][Ca
 
2
][Fe
2+
4
Fe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Kaersutite
[Na][Ca
 
2
][Mg
 
4
Ti][O|OH|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Magnesiohastingsite
Na[Ca
 
2
][Mg
 
4
Fe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Magnesiosadanagaite
[Na][Ca
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.15Pargasite
[Na][Ca
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Sadanagaite
[Na][Ca
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.15Fluoro-edenite
Na[Ca
 
2
][Mg
 
5
][(F,OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.15Potassic-Ferrisadanagaite
[K][Ca
 
2
][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.15Potassic-Magnesiosadanagaite
[K][Ca
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.15Potassicpargasite
[K][Ca
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Potassicsadanagaite
[K][Ca
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
9.DE.15Fluoro-magnesiohastingsite
[Na][Ca
 
2
][Mg
 
4
Fe
3+
 
][F
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Ferriwhittakerite
Na(Na
 
1.0-1.5
Li
 
0.5-1.0
)
 
2
(Fe
3+
2
Mg
 
2
Li)Si
 
8
O
 
22
(OH)
 
2
9.DE.15Ferri-ottoliniite
[](Na
 
1
Li
 
1
)(Fe
3+
2
Mg
 
3
)Si
 
8
O
 
22
(OH)
 
2
9.DE.15Fluoro-potassichastingsite
[K][Ca
 
2
][Fe
2+
4
Fe
3+
 
][(F,OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Chloro-potassichastingsite
[K][Ca
 
2
][Fe
2+
4
Fe
3+
 
][(Cl,OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Fluoropargasite
[Na][Ca
 
2
][Mg
 
4
Al][(F,OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Parvo-mangano-edenite
Na[CaMn
2+
 
][Mg
 
5
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.15Chloro-potassicpargasite
[K][Ca
 
2
][Mg
 
4
Al][(Cl,OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Chloro-potassic-ferro-edenite
[K][Ca
 
2
][Fe
2+
5
][(Cl,OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.15Potassic-magnesiohastingsite
[K][Ca
 
2
][Mg
 
4
Fe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.15Potassic-ferropargasite
KCa
 
2
(Fe
2+
4
Al)Si
 
6
Al
 
2
O
 
22
(OH)
 
2
9.DE.20Aluminobarroisite
☐[CaNa][Mg
 
3
Al
 
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Aluminokatophorite
9.DE.20Aluminotaramite
Na[CaNa][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20Barroisite
☐[CaNa][Mg
 
3
AlFe
3+
 
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Ferri-ferrobarroisite
☐[CaNa][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Ferri-ferrowinchite
☐[CaNa][Fe
2+
4
(Fe
3+
 
,Al)][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Ferribarroisite
☐[CaNa][Mg
 
3
Fe
3+
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Ferritaramite
Na[CaNa][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20Ferrikatophorite
Na[CaNa][Fe
2+
4
(Fe
3+
 
,Al)][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Alumino-ferrobarroisite
☐[CaNa][Fe
2+
3
Al
 
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Ferrobarroisite
☐[CaNa][Fe
2+
3
AlFe
3+
 
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Ferrorichterite
Na[CaNa][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Ferrowinchite
☐[CaNa][Fe
2+
4
(Al,Fe
3+
 
)][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Katophorite
Na[CaNa][Fe
2+
4
(Al,Fe
3+
 
)][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Ferri-magnesiotaramite
Na[CaNa][Mg
 
3
Fe
3+
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20Magnesiotaramite
Na[CaNa][Mg
 
3
AlFe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20Richterite
Na[CaNa][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Taramite
Na[CaNa][Fe
2+
3
AlFe
3+
 
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20Winchite
☐[CaNa][Mg
 
4
(Al,Fe
3+
 
)][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Alumino-Magnesiotaramite
Na[CaNa][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20Fluororichterite
Na[CaNa][Mg
 
5
][(F,OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Magnesiokatophorite
Na[CaNa][Mg
 
4
(Al,Fe
3+
 
)][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.20Fluoro-potassicrichterite
K[CaNa][Mg
 
5
][(F,OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Potassicrichterite
K[CaNa][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Parvowinchite
☐[Mn
2+
 
Na][Mg
 
4
(Al,Fe
3+
 
)][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Ferriwinchite
☐[CaNa][Mg
 
4
(Fe
3+
 
,Al)][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.20Fluoro-alumino-magnesiotaramite
Na[CaNa][Mg
 
3
Al
 
2
][F
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.20IMA2007-015
K[CaNa][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DE.25Arfvedsonite
[Na][Na
 
2
][Fe
2+
4
Fe
3+
 
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Eckermannite
[Na][Na
 
2
][(Mg,Fe
2+
 
)
 
4
Al][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Ferro-eckermannite
[Na][Na
 
2
][(Fe
2+
 
,Mg)
 
4
Al][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Ferroglaucophane
[ ][Na
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Glaucophane
[ ][Na
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Kornite
[(Na,K)][Na
 
2
][Mg
 
2
Mn
3+
2
Li][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Kôzulite
[Na][Na
 
2
][Mn
2+
4
(Fe
3+
 
,Al)][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Leakeite
[Na][Na
 
2
][Mg
 
2
Fe
3+
2
Li][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Magnesioriebeckite
[ ][Na
 
2
][Mg
 
3
Fe
3+
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Magnesio-arfvedsonite
[Na][Na
 
2
][Mg
 
4
Fe
3+
 
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Nybøite
[Na][Na
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.25Riebeckite
[ ][Na
 
2
][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Ungarettiite
[Na][Na
 
2
][Mn
2+
2
Mn
3+
3
][O
 
2
|Si
 
8
O
 
22
]
9.DE.25Ferric-ferronybøite
[Na][Na
 
2
][(Fe
2+
 
,Mg)
 
3
Fe
3+
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.25Ferri-clinoferroholmquistite
[ ][Li
 
2
][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Ferric-nyboite
9.DE.25Ferroleakeite
[Na][Na
 
2
][Fe
2+
2
Fe
3+
2
Li][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Ferronyböite
[Na][Na
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.25Fluoro-ferroleakeite
[Na][Na
 
2
][Fe
2+
2
Fe
3+
2
Li][(F,OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Sodic-ferri-clinoferroholmquistite
[(☐,Na)][(Li,☐)
 
2
][Fe
2+
3
Fe
3+
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Fluoro-magnesio-arfvedsonite
[Na][Na
 
2
][Mg
 
4
Fe
3+
 
][(F,OH)
 
2
|[Si
 
8
O
 
22
]
9.DE.25Sodic-ferripedrizite
[Na][Li
 
2
][Mg
 
2
Fe
3+
2
Li][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Potassicleakeite
[K][Na
 
2
][Mg
 
2
Fe
3+
2
Li][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Fluoronybøite
[Na][Na
 
2
][Mg
 
3
Al
 
2
][(F,OH)
 
2
|AlSi
 
7
O
 
22
]
9.DE.25Dellaventuraite
NaNa
 
2
(MgMn
3+
2
LiTi
4+
 
)Si
 
8
O
 
22
O
 
2
9.DE.25Fluoro-sodicpedrizite
[Na][Li
 
2
][Mg
 
2
Al
 
2
Li][(F,OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Potassicarfvedsonite
[(K,Na)][Na
 
2
][Fe
2+
4
Fe
3+
 
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Obertiite
[Na][Na
 
2
][Mg
 
3
(Ti,Fe
3+
 
,Mn
3+
 
)
 
2
][O
 
2
|Si
 
8
O
 
22
]
9.DE.25Fluoro-potassic-magnesio-arfvedsonite
[(K,Na)][Na
 
2
][Mg
 
4
Fe
3+
 
][(F,OH)
 
2
|[Si
 
8
O
 
22
]
9.DE.25Sodic-ferri-ferropedrizite
[Na][Li
 
2
][Fe
2+
2
Fe
3+
2
Li][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Potassic-magnesio-arfvedsonite
[K][Na
 
2
][Mg
 
4
Fe
3+
 
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Sodicpedrizite
NaLi
 
2
(LiMg
 
2
Fe
3+
 
Al)(Si
 
8
O
 
22
)(OH)
 
2
9.DE.25Sodic-ferropedrizite
NaLi
 
2
(LiFe
2+
2
Al)Si
 
8
O
 
22
(OH)
 
2
9.DE.25Pedrizite
Li
 
2
(Li,Mg,Fe
2+
 
Al)
 
5
Si
 
8
O
 
22
(OH)
 
2
9.DE.25Ferropedrizite
NaLi
 
2
[Fe
2+
2
Fe
3+
 
AlLi)Si
 
8
O
 
22
(OH)
 
2
9.DE.25IMA2009-012
NaNa
 
2
(Mg
 
2
Al
 
2
Li)(Si
 
8
O
 
22
)F
 
2
9.DE.25IMA2009-034
NaNa
 
2
(Fe
2+
3
Fe
3+
 
Ti)Si
 
8
O
 
22
O
 
2
Related Minerals - Hey's Index Grouping:

- +
16.11.1Madisonite
Ca
 
2
Mg
 
2
Al
 
2
Si
 
3
O
 
13
 or near
16.11.3Alumino-magnesio-hornblende
Ca
 
2
Mg
 
4
Al
 
2
Si
 
7
O
 
22
(OH)
 
2
16.11.5Clintonite
Ca(Mg,Al)
 
3
[(OH)
 
2
|Al
 
3
SiO
 
10
]
16.11.6Juanite
Ca
 
10
Mg
 
4
Al
 
2
Si
 
11
O
 
39
·4H
 
2
O or near
16.11.7Pumpellyite-(Mg)
Ca
 
2
MgAl
 
2
[(OH)
 
2
|SiO
 
4
|Si
 
2
O
 
7
] · H
 
2
O
16.11.8Tacharanite
Ca
 
12
Al
 
2
Si
 
18
O
 
51
·18H
 
2
O
16.11.9Aluminobarroisite
☐[CaNa][Mg
 
3
Al
 
2
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.11.10Alumino-Magnesiotaramite
Na[CaNa][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.11.12Edenite
Na[Ca
 
2
][Mg
 
5
][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.11.13Pargasite
[Na][Ca
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
16.11.14Magnesiokatophorite
Na[CaNa][Mg
 
4
(Al,Fe
3+
 
)][(OH)
 
2
|AlSi
 
7
O
 
22
]
16.11.15Beidellite
(Na,Ca
 
0.5
)
 
0.3
Al
 
2
(Si,Al)
 
4
O
 
10
(OH)
 
2
·nH
 
2
O
16.11.15Magnesiosadanagaite
[Na][Ca
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]
16.11.16Sadanagaite
[Na][Ca
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
3
Si
 
5
O
 
22
]

Other Names for Tschermakite

Synonyms:
Tschermakitic hornblende
Other Languages:
German:Tschermakit
Spanish:Tschermakita

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 Tschermakite

Reference List:A. N. Winchell (1945) Variations in composition and properties of calciferous amphiboles. American Mineralogist 30:27-50

American Journal of Science (1945): 243: 29.

Phillips, M.W., Draheim, J.E., Popp, R.K., Clowe, C.A., and Pinkerton, A.A. (1989) Effects of oxidation-dehydrogenation in tschermakitic hornblende. American Mineralogist: 74: 764-773.

Mineralogical Record (1998): 29: 169-174.

Hawthorne, Frank C., and Roberta Oberti (2006), On the classification of amphiboles: Canadian Mineralogist:
44(1): 1-21.

Ishida, K. and Hawthorne, F.C. (2006) Assignment of infrared OH-stretching bands in calcic amphiboles through deuteration and heat treatment. American Mineralogist: 91: 871-879.

Internet Links for Tschermakite

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  • Raman and XRD data at RRUFF project
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  • Tschermakite details from Handbook of Mineralogy (PDF)
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    Localities for Tschermakite

    Hide Locality List
    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.
    Brazil
     
    • Northeast Region
      • Paraíba
        • Borborema mineral province
          • Catingueira
    		Souza Neto, J.A., Legrand, J.M., Volfinger, M., Pascal, M.-L., and Sonnet, P. (2008): Mineralium Deposita 43, 185-205.
    • Southeast Region
      • Minas Gerais
    		Jour. of South American Earth Sci. 15:709–723
    Canada
     
    • Manitoba
      • Lynn Lake
    		CanMin 37
    • Ontario
      • Algoma District
        • Chabanel Township
    		www.venuewest.com/8IKC/s1post.htm.
    China
     
    • Anhui Province
      • Anqing Prefecture
        • Taihu Co.
          • Lake Hualiangting
    		Franz, L., Romer, R.L., Klemd, R., Schmid, R., Oberhänsli, R., Wagner, T., and Dong Shuwen (2001): Contributions to Mineralogy and Petrology 141, 322-346.
    France
     
    • Franche-Comté
      • Haute-Saône
        • Château-Lambert
          • Saint-Maurice-sur-Moselle
    		F. André and J. Béhien, Bull. Minéral. , France, 1983, 106, pp. 341-351.
    • Midi-Pyrénées
      • Aveyron
        • Le Vialas du Tarn
    		Arliguie M collection
        • Millau
          • Saint-Beauzély
    		Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, pp. 465-469.
    Germany
     
    • Hesse
      • Odenwald
        • Bensheim
          • Roßbach
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Greece
     
    • Thraki (Thrace; Thracia) Department
      • Komotini (Rodopi; Rhodope) Prefecture
        • Thermes
    		Eur. J. Mineral. , 1994, 6, pp. 733-738.
    Greenland
     
    • Kitaa (West Greenland) Province
      • Nuuk (Godthåb)
    		Petersen, O. V. & Secher, K. (1993): The Minerals of Greenland. Mineralogical Record 24 (2): 1-67
    Hungary
     
    • Heves Co.
      • Bükk Mts.
        • Szarvaskő
    		Mineral Species of Hungary, 2005
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
          • Monte Somma
            • Ercolano
              • San Vito
    		Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI
    • Sardinia
      • Olbia-Tempio Pausania Province
        • Olbia
    		Gamboni, A., Gamboni, T. (2006): Gallura, tesori nel granito, i minerali delle pegmatiti granitiche. Webber Editore, Sassari, 190 pp.
    Mexico
     
    • Chihuahua
      • Pueblito de Allende
    		American Mineralogist, Volume 94, pages 1483–1486, 2009
    New Caledonia
     
    • Northern Province
      • Nouméa Commune
        • Népoui
    		T. Sameshima et al. , Am. Min. , 1983, 68, pp. 1076-1082. / C. Campiglio et al. , Bull. Minéral. , 1986, 109, pp. 423-440.
    New Zealand
     
    • South Island
      • Canterbury
        • Banks Peninsula
    		CanMin 38:191-216
    Norway
     
    • Nordland
      • Vefsn
        • Husvika
    		Birkeland, A. & Bjørlykke, A. (1993): Pb isotopic constraints on the origin of the Husvika Zn-Pb deposit in Nordland, north-central, Norway. Norsk Geologisk Tidsskrift 73 (1), 43-54
    Oman
     
    • Dhofar (Al Janubiyah) Province
    		The Meteoritical Bulletin, No. 88, 2004 JULY, Meteoritics & Planetary Science 39, Axxx–Axxx (2004)
    Russia
     
    • Northern Region
      • Karelia Republic
        • Northern Karelia
    		Nikolay Serebryakov data
          • Loukhi
            • Tedino
              • Dyadino lake
    		P.M. Kartashov data
          • Oulanka plutonic complex
            • Olanga (Oulanka) River
    		A. Yu. Barkov et al. , Eur. J. Mineral. , 1996, 8, pp. 311-316.
    Slovakia
     
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
        • Dobšiná (Dobschau) Mining District
    		Spišák,J., Hovorka,D., Rybka,R.,Turan,J., 1989: Spessartín a piemontit v metasedimentochstaršieho paleozoika vnútorných Západných Karpát. Čas. Pro min. a geol., 1, 17 – 29
    • Prešov Region
      • Northern Slanské Mts
    		Ďuďa,R., et al., 1981: Mineralógia severnej časti Slanských vrchov. Min.Slovaca, Monografia 2, 98s
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Bregaglia Valley (Bergell)
        • Löbbia
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 297.
    • Ticino (Tessin)
      • Blenio Valley
        • Santa Maria Valley
          • Acquacalda
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 263.
    Tanzania
     
    • Kilimanjaro Region
      • Mt Kilimanjaro
        • Longido
    UK
     
    • Scotland
    		www.minsocam.org
    • Wales
      • Conwy (Gwynedd; Caernarvonshire)
        • Northern Snowdonia
    		Eur. J. Mineral. , 1993, 5, pp. 925-935.
    USA
     
    • Alaska
      • Kenai Peninsula Borough
        • Kachemak Bay
          • Seldovia
    		Geological Society of America Bulletin, 1974, V 85, N 2, pp. 285-292.
    • Arizona
      • Santa Cruz Co.
        • Santa Rita Mts
          • Tyndall District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 403.
    • California
      • Siskiyou Co.
        • Cascade Mts
          • Medicine Lake area
    		Mertzman, S.A. (1978) A tschermakite-bearing high-alumina olivine tholeite from the Southern Cascades, California. Contributions to Mineralogy and Petrology: 67: 261-265; Pemberton, H. Earl (1983), Minerals of California: 401-402.
    • Kentucky
      • Calloway Co.
    		American Mineralogist, Volume 94, pages 1483–1486, 2009
    • New York
      • Warren Co.
        • North Creek
    • North Carolina
    		Stapor, Frank W.Jr and Flaisher, Chris, Mar, 2006, Altered Amphibolite Hypotheisis for the origin of Todd- type Chlorite Bodies in the Ashe Formation , North west North Carolina: Evidence from Amphibole Mineralogy and Pargentic Sequence
    Stapor, Frank W. Jr and Flaisher, Chris, Mar , 2006, Altered Amphibolite Hypotheisis for the origin of Todd- type Chlorite Bodies in the Ashe Formation, North west North Carolina : Evidence from Amphibole Mineralogy and Pargentic Sequence, Earth Sciences, Tennessee Technological University
      • Clay Co.
    		Lang, 2001
    Stapor, Frank,W.Jr, and Flaisher,Chris, Mar, 2006, Altered Amphibolite Hypotheisis for the orgin of Todd - type Chlorite Bodies in the Ashe Formation Northwest North Carolina : Evidence from Amphibole Mineralogy and Pargentic Sequence, Earth Sciences, Tennessee Technological University
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 3rd Nov 2009 22:36:07