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Ferro-tschermakite

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Big Photo

Dookie Mineralogical Reserve quarry, Dookie, Victoria, Australia
© Judy Rowe

Show Ferro-tschermakite Photos (3)



Formula:
☐{Ca
 
2
}{Fe
2+
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
Ferro-tschermakite is defined as a tschermakite group member with the following dominant elements:
C position: Fe as the dominant divalent cation and Al as the dominant trivalent cation.
W position: (OH) as the dominant anion
System:MonoclinicColour:Medium green to dark ...
Lustre:VitreousHardness:5 - 6
Member of:Tschermakite Group > Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup
Name:
For its iron-rich relationship to Tschermakite, named for Gustav Tschermak.


Ferrotschermakite is defined as a Tschermakite Group memeber with Fe2+>Mg and Al>Fe3+ in the C position. Ferrotschermakite has been redefined in the 2012 Amphibole nomenclature in that:


1) The formula is changed from ☐(Ca2)(Fe2+3AlFe3+)(Al2Si6O22)(OH)2 to ☐(Ca2)(Fe2+3Al2)(Al2Si6O22)(OH)2. Consequently all pre-2012 literature references to ferrotschermakite should be checked to verify that Al>Fe3+ in the C position. If Fe3+>Al in the C position the material will be ferro-ferri-tschermakite.

2) The tschermakite group is in the 2012 nomenclature defined with C(Al+Fe3++2Ti)>1,5 apfu, whereas the pre-2012 definition was defined with 5,5 < Si < 6,5 apfu. This redefinition does not change the formula, but many amphiboles qualifying as tschermakite pre-2012 will now be ferro-hornblende or ferro-ferrihornblende.


It should also be noted that pre-1978 tschermakite was defined with A+B(Na+K+Ca)<2,5. As tschermakite often contains less than 2apfu Ca, older literature may describe amphiboles with A(Na+K)>0,5 as tschermakites. These are now considered pargasites

Classification of Ferro-tschermakite

IMA status:Redefined Approved 2012
Strunz 8th edition ID:8/F.10-70
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.:16.21.3

16 : Silicates Containing Aluminum and other Metals
21 : Aluminosilicates of Fe and Ca
mindat.org URL:http://www.mindat.org/min-1532.html
Please feel free to link to this page.

Physical Properties of Ferro-tschermakite

Lustre:Vitreous
Colour:Medium green to dark green to green-black to black, also brownish-green.
Streak:Pale grey-green
Hardness (Mohs):5 - 6
Cleavage:Perfect
on {110}

Crystallography of Ferro-tschermakite

Crystal System:Monoclinic
Cell Parameters:a = 9.86Å, b = 18.13Å, c = 5.33Å
β = 104.95°
Ratio:a:b:c = 0.544 : 1 : 0.294
Unit Cell Volume:V 920.55 ų (Calculated from Unit Cell)

Optical Data of Ferro-tschermakite

Type:Biaxial (-)
RI values: nα = 1.720 nγ = 1.750
Maximum Birefringence:δ = 0.030

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

Chemical Properties of Ferro-tschermakite

Formula:
☐{Ca
 
2
}{Fe
2+
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2


Ferro-tschermakite is defined as a tschermakite group member with the following dominant elements:
C position: Fe as the dominant divalent cation and Al as the dominant trivalent cation.
W position: (OH) as the dominant anion
Essential elements:Al, Ca, Fe, H, O, Si
All elements listed in formula:Al, Ca, Fe, H, O, Si
Common Impurities:Ti,Mn,Na,K,F,Cl,Mg,Fe2+

Relationship of Ferro-tschermakite to other Species

Series:Forms a series with Tschermakite (see here)
Member of:Tschermakite Group > Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup
Other Members of Group:

- +
Ferri-fluoro-tschermakite
☐{Ca
 
2
}{Mg
 
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)F
 
2
Ferri-tschermakite
☐{Ca
 
2
}{Mg
 
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
Ferro-ferri-fluoro-tschermakite
☐{Ca
 
2
}{Fe
2+
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)F
 
2
Ferro-Ferri-tschermakite
☐{Ca
 
2
}{Fe
2+
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
Ferro-fluoro-tschermakite
☐{Ca
 
2
}{Fe
2+
3
Al
2
}
(Al
 
2
Si
 
6
O
 
22
)F
 
2
Fluoro-tschermakite
☐{Ca
 
2
}{Mg
 
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)F
 
2
Tschermakite
☐(Ca
 
2
)(Mg
 
3
Al
 
2
)(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
9.DE.05Anthophyllite
☐{Mg
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.05Cummingtonite
☐{Mg
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.05Clino-holmquistite Group
☐{Li
 
2
}{Z
2+
3
Z
3+
2
}(Si
 
8
O
 
22
)((OH),F,Cl)
 
2
9.DE.05Grunerite
☐{Fe
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.05Manganocummingtonite
☐{Mn
2+
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.05Manganogrunerite
☐{Mn
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.05Permanganogrunerite
☐{Mn
2+
2
}{Mn
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.05Ferro-fluoro-pedrizite
{Na}{Li
 
2
}{Fe
 
2
Al
 
2
Li}(Al
 
2
Si
 
6
O
 
22
)F
 
2
9.DE.05Ferri-fluoro-leakeite
{Na}{Na
 
2
}{Mg
 
2
Fe
3+
2
Li}(Si
 
8
O
 
22
)F
 
2
9.DE.10Actinolite
☐{Ca
 
2
}{(Mg,Fe
2+
 
)
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.10Ferri-tschermakite
☐{Ca
 
2
}{Mg
 
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.10Ferro-Actinolite
☐{Ca
 
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.10Ferro-hornblende
☐{Ca
 
2
}{Fe
2+
4
Al}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.10Joesmithite
{Pb}{Ca
 
2
}{Mg
 
3
Fe
3+
2
}(Be
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.10Magnesio-hornblende
☐{Ca
 
2
}{Mg
 
4
Al}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.10Tremolite
☐{Ca
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.10Tschermakite
☐(Ca
 
2
)(Mg
 
3
Al
 
2
)(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.10Cannilloite
Ca(Ca
 
2
)(Mg
 
4
Al)(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DE.10Fluor-cannilloite
{Ca}{Ca
 
2
}{Mg
 
4
Al}(Al
 
3
Si
 
5
O
 
22
)(F,OH)
 
2
9.DE.10Parvo-manganotremolite
☐{CaMn
2+
 
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.10Fluoro-tremolite
☐{Ca
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)F
 
2
9.DE.10Potassic-fluoro-pargasite
{K}{Ca
 
2
}{Mg
 
4
Al}(Al
 
2
Si
 
6
O
 
22
)F
 
2
9.DE.15Edenite
{Na}{Ca
 
2
}{Mg
 
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.15Ferro-edenite
{Na}{Ca
 
2
}{Fe
2+
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.15Ferro-kaersutite
{Na}{Ca
 
2
}{Fe
2+
3
AlTi}(Al
 
2
Si
 
6
O
 
22
)O
 
2
9.DE.15Ferro-pargasite
{Na}{Ca
 
2
}{Fe
2+
4
Al}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Hastingsite
{Na}{Ca
 
2
}{Fe
2+
4
Fe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Kaersutite
{Na}{Ca
 
2
}{Mg
 
3
AlTi}(Al
 
2
Si
 
6
O
 
22
)O
 
2
9.DE.15Magnesio-hastingsite
{Na}{Ca
 
2
}{Mg
 
4
Fe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Pargasite
{Na}{Ca
 
2
}{Mg
 
4
Al}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Sadanagaite
{Na}{Ca
 
2
}{Mg
 
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DE.15Fluoro-edenite
{Na}{Ca
 
2
}{Mg
 
5
}(AlSi
 
7
O
 
22
)(F,OH)
 
2
9.DE.15Potassic-ferro-ferri-sadanagaite
{K}{Ca
 
2
}{Fe
2+
3
Fe
3+
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DE.15Potassic-sadanagaite
{K}{Ca
 
2
}{Mg
 
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DE.15Potassic-pargasite
{K}{Ca
 
2
}{Mg
 
4
Al}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Potassic-ferro-sadanagaite
{K}{Ca
 
2
}{Fe
2+
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DE.15Magnesio-fluoro-hastingsite
{Na}{Ca
 
2
}{Mg
 
4
Fe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)F
 
2
9.DE.15Potassic- fluoro-hastingsite
{K}{Ca
 
2
}{Fe
2+
4
Fe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(F,OH)
 
2
9.DE.15Potassic-chloro-hastingsite
{K}{Ca
 
2
}{Fe
2+
4
Fe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(Cl,OH)
 
2
9.DE.15Fluoro-pargasite
{Na}{Ca
 
2
}{Mg
 
4
Al}(Al
 
2
Si
 
6
O
 
22
)(F,OH)
 
2
9.DE.15Parvo-mangano-edenite
{Na}{CaMn
2+
 
}{Mg
 
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.15Potassic-chloro-pargasite
{K}{Ca
 
2
}{Mg
 
4
Al}(Al
 
2
Si
 
6
O
 
22
)(Cl,OH)
 
2
9.DE.15Potassic-ferro-chloro-edenite
{K}{Ca
 
2
}{Fe
2+
5
}(AlSi
 
7
O
 
22
)(Cl,OH)
 
2
9.DE.15Potassic-magnesio-hastingsite
{K}{Ca
 
2
}{Mg
 
4
Fe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Potassic-ferro-pargasite
{K}{Ca
 
2
}{Fe
2+
4
Al}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.15Chromio-pargasite
{Na}{Ca
 
2
}{Mg
 
4
Cr
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.20Ferro-taramite
Na(CaNa)(Fe
2+
3
Al
 
2
)(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.20Barroisite
☐{CaNa}{Mg
 
3
Al
 
2
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.20Ferro-ferri-barroisite
☐(CaNa)(Fe
2+
3
Fe
3+
2
)(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.20Ferro-ferri-winchite
☐[CaNa][Fe
2+
4
(Fe
3+
 
,Al)]Si
 
8
O
 
22
(OH)
 
2
9.DE.20Ferri-barroisite
☐(CaNa)(Mg
 
3
Fe
3+
2
)(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.20Ferro-ferri-taramite
Na(CaNa)(Fe
2+
3
Fe
3+
2
)(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.20Ferro-ferri-katophorite
NaCaNaFe
2+
4
(Fe
3+
 
)[(AlSi
 
7
)O
 
22
](OH)
 
2
9.DE.20Ferro-barroisite
☐{CaNa}{Fe
2+
3
Al
 
2
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.20Ferro-richterite
{Na}{CaNa}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.20Ferro-winchite
☐{CaNa}{Fe
2+
4
Al}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.20Ferro-katophorite
{Na}{CaNa}{Fe
2+
4
Al}[(AlSi
 
7
)O
 
22
](OH)
 
2
9.DE.20Ferri-taramite
Na(CaNa)(Mg
 
3
Fe
3+
2
)(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.20Magnesiotaramite
{Na}{CaNa}{Mg
 
3
AlFe
3+
 
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.20Richterite
{Na}{CaNa}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.20Winchite
☐{CaNa}{Mg
 
4
Al}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.20Taramite
{Na}{CaNa}{Mg
 
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DE.20Fluoro-richterite
{Na}{CaNa}{Mg
 
5
}(Si
 
8
O
 
22
)(F,OH)
 
2
9.DE.20Katophorite
{Na}{CaNa}{Mg
 
4
Al}[(AlSi
 
7
)O
 
22
](OH)
 
2
9.DE.20Potassic-fluoro-richterite
{K}{CaNa}{Mg
 
5
}(Si
 
8
O
 
22
)(F,OH)
 
2
9.DE.20Potassic-richterite
K[CaNa][Mg
 
5
]Si
 
8
O
 
22
(OH)
 
2
9.DE.20Ferri-ghoseite
☐[Mn
2+
 
Na][Mg
 
4
Fe
3+
 
]Si
 
8
O
 
22
(OH)
 
2
9.DE.20Ferri-winchite
☐[CaNa][Mg
 
4
(Fe
3+
 
,Al)]Si
 
8
O
 
22
(OH)
 
2
9.DE.20Fluoro-taramite
{Na}{CaNa}{Mg
 
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)F
 
2
9.DE.25Arfvedsonite
[Na][Na
 
2
][Fe
2+
4
Fe
3+
 
]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Eckermannite
NaNa
 
2
(Mg
 
4
Al}Si
 
8
O
 
22
(OH)
 
2
9.DE.25Ferro-eckermannite
NaNa
 
2
(Fe
2+
 
,
 
4
Al)Si
 
8
O
 
22
(OH)
 
2
9.DE.25Ferro-glaucophane
◻[Na
 
2
][Fe
2+
3
Al
 
2
]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Glaucophane
◻[Na
 
2
][Mg
 
3
Al
 
2
]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Potassic-mangani-leakeite
[(Na,K)][Na
 
2
][Mg
 
2
Mn
3+
2
Li]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Mangano-arfvedsonite
[Na][Na
 
2
][Mn
2+
4
(Fe
3+
 
)]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Ferri-leakeite
[Na][Na
 
2
][Mg
 
2
Fe
3+
2
Li]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Magnesio-riebeckite
◻{Na
 
2
}{Mg
 
3
Fe
3+
2
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.25Magnesio-arfvedsonite
{Na}{Na
 
2
}{Mg
 
4
Fe
3+
 
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.25Nybøite
NaNa
 
2
(Mg
 
3
Al
 
2
)(AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.25Riebeckite
◻[Na
 
2
][Fe
2+
3
Fe
3+
2
]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Mangano-mangani-ungarettiite
NaNa
 
2
(Mn
2+
2
Mn
3+
3
)(Si
 
8
O
 
22
)O
 
2
9.DE.25Ferro-ferri-nybøite
NaNa
 
2
[(Fe
2+
3
,Mg)Fe
3+
2
](AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.25Clino-ferro-ferri-holmquistite
◻{Li
 
2
}{Fe
2+
3
Fe
3+
2
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.25Ferri-nybøite
NaNa
 
2
(Mg
 
3
Fe
3+
2
](AlSi
 
7
O
 
22
)(OH)
 
2
9.DE.25Ferro-ferri-leakeite
[Na][Na
 
2
][Fe
2+
2
Fe
3+
2
Li]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Ferro-ferri-fluoro-leakeite
Na(Na
 
2
)(Fe
2+
2
Fe
3+
2
Li)(Si
 
8
O
 
22
)(F)
 
2
9.DE.25Sodic-ferri-clinoferroholmquistite
☐{Li
 
2
}{Fe
2+
3
Fe
3+
2
}(Si
 
8
O
 
22
)(OH)
 
2
9.DE.25Magnesio-fluoro-arfvedsonite
[Na][Na
 
2
][Mg
 
4
Fe
3+
 
][Si
 
8
O
 
22
](F,OH)
 
2
9.DE.25Ferri-pedrizite
[Na][Li
 
2
][Mg
 
2
Fe
3+
2
Li]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Potassic-ferri-leakeite
[K][Na
 
2
][Mg
 
2
Fe
3+
2
Li]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Fluoro-nybøite
NaNa
 
2
(Mg
 
3
Al
 
2
)(AlSi
 
7
O
 
22
)(F,OH)
 
2
9.DE.25Mangani-dellaventuraite
{Na}{Na
 
2
}{MgMn
3+
2
LiTi
4+
 
}Si
 
8
O
 
22
O
 
2
9.DE.25Fluoro-pedrizite
NaLi
 
2
(Mg
 
2
Al
 
2
Li)(Si
 
8
O
 
22
)F
 
2
9.DE.25Potassic-arfvedsonite
[(K,Na)][Na
 
2
][Fe
2+
4
Fe
3+
 
]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Ferri-obertiite
Na(Na
 
2
)(Mg
 
3
Fe
3+
 
Ti)(Si
 
8
O
 
22
)O
 
2
9.DE.25Potassic-magnesio-fluoro-arfvedsonite
[(K,Na)][Na
 
2
][Mg
 
4
Fe
3+
 
][Si
 
8
O
 
22
][(F,OH)
 
2
]
9.DE.25Ferro-ferri-pedrizite
[Na][Li
 
2
][Fe
2+
2
Fe
3+
2
Li]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Potassic-magnesio-arfvedsonite
[K][Na
 
2
][Mg
 
4
Fe
3+
 
]Si
 
8
O
 
22
(OH)
 
2
9.DE.25Pedrizite
NaLi
 
2
(LiMg
 
2
Al
 
2
)(Si
 
8
O
 
22
)(OH)
 
2
9.DE.25Ferro-pedrizite
NaLi
 
2
(LiFe
2+
2
Al
 
2
)Si
 
8
O
 
22
(OH)
 
2
9.DE.25Fluoro-leakeite
NaNa
 
2
(Mg
 
2
Al
 
2
Li)(Si
 
8
O
 
22
)F
 
2
9.DE.25Ferro-ferri-obertiite
NaNa
 
2
(Fe
2+
3
Fe
3+
 
Ti)Si
 
8
O
 
22
O
 
2
Related Minerals - Hey's Index Grouping:

- +
16.21.1Esseneite
CaFe
3+
 
[AlSiO
 
6
]
16.21.2Epidote
{Ca
 
2
}{Al
 
2
Fe
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
16.21.4Ferro-aluminotschermakite
☐{Ca
 
2
}{Fe
2+
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
16.21.5Ferri-tschermakite
☐{Ca
 
2
}{Mg
 
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
16.21.6Ferro-Ferri-tschermakite
☐{Ca
 
2
}{Fe
2+
3
Fe
3+
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
16.21.7Alumino-ferro-hornblende
☐{Ca
 
2
}{Fe
2+
4
Al}(AlSi
 
7
O
 
22
)(OH)
 
2
16.21.8Pumpellyite-(Fe2+)
Ca
 
2
Fe
2+
 
Al
 
2
(Si
 
2
O
 
7
)(SiO
 
4
)(OH)
 
2
 · H
 
2
O
16.21.8Pumpellyite-(Fe3+)
Ca
 
2
(Fe
3+
 
,Mg,Fe
2+
 
)(Al,Fe
3+
 
)
 
2
(Si
 
2
O
 
7
)(SiO
 
4
)(OH,O)
 
2
 · H
 
2
O

Other Names for Ferro-tschermakite

Synonyms:
Ferro-aluminotschermakiteFerro-tschermakitic-hornblende
Other Languages:
German:Ferrotschermakit
Russian:Феррочермакит
Simplified Chinese:铁钙镁闪石
铁镁钙闪石
Spanish:Ferrotschermakita

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 Ferro-tschermakite

Reference List:

- +
Hawthorne, F.C. and Grundy, H.D. (1973a) The crystal chemistry of the amphiboles. I. Refinement of the crystal structure of ferrotschermakite. Mineralogical Magazine: 39: 36-48.

Mineralogical Record: 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.

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048

Internet Links for Ferro-tschermakite

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    • Localities for Ferro-tschermakite

    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.
    Hide Locality List
    (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
     
    • New South Wales
      • Yancowinna Co.
    		Econ Geol (1985) 80:488-496
        • Broken Hill District
          • Northern Section
    • Victoria
      • Dookie
    		No reference listed
    Brazil
     
    • Goiás
    		Jost, H., and de Tarso Ferro de Oliveira Fortes, P. (2001): Mineralium Deposita 36, 358-376.
    • Pará
    		Revista Brasileirade Geociências 30(3):367-370 (2000)
    • 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.
    Canada
     
    • Manitoba
      • Lynn Lake District
    		Samson I M, Blackburn W H, Gagnon J E (1999) Paragenesis and composition of amphibole and biotite in the MacLellan gold deposit, Lynn Lake greenstone belt, Manitoba, Canada, The Canadian Mineralogist 37, 1405-1421
    • Ontario
      • Sudbury District
        • Levack
    		McCormick, K.A. and McDonald, A. (1999) Chlorine-bearing amphiboles from the Fraser mine, Sudbury, Ontario, Canada: Description and crystal chemistry. Canadian Mineralogist, 37, 1385-1403.
      • Thunder Bay District
        • Marathon
          • Hemlo gold deposit
    		Econ Geol (1994) 89:720-756
      • Timiskaming District
        • Boston Township
    		Econ Geol (1993) 88:817-836
    China
     
    • Inner Mongolia Autonomous Region
      • Ulanhad League (Chifeng Prefecture)
        • Hexigten Banner (Keshiketeng Co.)
    		Yiming Zhao and Daxin Li (2003): Mineral Deposits 22(4), 345-359; Zhenhua Zhou, Hongwei Liu, Guoxiong Chang, Linsu Li, Tao Li, Yongjun Yang, Ruijun Zhang, and Xianhe Ji (2011): Acta Petrologica et Mineralogica 30(1), 97-112
    • Yunnan Province
      • Honghe Autonomous Prefecture
        • Gejiu Co.
    		Yiming Zhao and Daxin Li (2003): Mineral Deposits 22(4), 345-359
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník (Jauernig)
          • Horní Hostice
    		Zimák, J.: Mineralogie železných rud na historickém ložisku Horní Hoštice v Rychlebských horách (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 2, 238-242.
    Egypt
     
    • Red Sea Governorate
      • Eastern Desert
    		Mona Kabesh, Asran M. Asran and Ezzat Abdel Rahman (2012) Mineral chemistry of banded migmatites from Hafafit and Feiran areas, Egypt. Arabian Journal of Geosciences 1866-7511:1-13
    France
     
    • Midi-Pyrénées
      • Tarn
    		Eur. J. Mineral. , 1993, 5, pp. 879-891.
    Germany
     
    • Bavaria
      • Lower Bavaria
    		Christian Rewitzer (personal collection/dealer)
    Namibia
     
    • Khomas Region
      • Windhoek District
        • Aris
    		www.excaliburmineral.com/mind-j.htm.
    Slovakia
     
    • Banská Bystrica Region
      • Poltár Co.
        • Kalinovo
    		Spišak J., Hovorka D 2005.: Metabazity a metasedimenty z okolia ultrabázického telesa medzi Brezničkou a Kalinovom. Min.Slov., 37,1, 47-54
    Switzerland
     
    • Wallis (Valais)
      • Goms
        • Ulrichen
          • Ägene Valley
            • Gries lake area
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 263.
    USA
     
    • Colorado
      • Gunnison Co.
        • Ruby District
    		Caine, J.S., Manning, A.H., Berger, B.R., Kremer, Y., Guzman, M.A., Eberl, D.D., and Schuller, K. (2010): USGS Open-File Report 10-1008
    • New York
      • St. Lawrence Co.
    • Virginia
      • Pittsylvania Co.
        • James River-Roanoke River Mn-Fe-Ba District
    		ROBERT J. TRACY and JAMES S. BEARD(2003): Manganoan kinoshitalite in Mn-rich marble and skarn from Virginia American Mineralogist Vol 88:pp740-747
    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. 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 thousands 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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