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Eckermannite

Big Photo

Norra Kärr, Gränna, Jönköping, Småland, Sweden
© Maurice de Graaf

Show Eckermannite Photos (3)
Formula:
[Na][Na
 
2
][(Mg,Fe
2+
 
)
 
4
Al][(OH)
 
2
|Si
 
8
O
 
22
]
System:MonoclinicColour:Dark bluish-green to ...
Lustre:VitreousHardness:5 - 6
Name:For Claes W.H. von Eckermann (1886-1969), Swedish petrologist.


Amphibole Group, Sodic Clino-Amphibole Subgroup.

Classification of Eckermannite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/F.08-70
Nickel-Strunz 10th (pending) edition ID:9.DE.25

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles
Dana 8th edition ID:66.1.3c.6

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
1 : Amphiboles - Mg-Fe-Mn-Li subgroup
Hey's CIM Ref.:17.2.11

17 : Silicates Containing other Anions
2 : Silicates with fluoride
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Type Occurrence of Eckermannite

Type Locality:Norra Kärr, Gränna, Jönköping, Småland, Sweden
Year of Discovery:1942

Physical Properties of Eckermannite

Lustre:Vitreous
Colour:Dark bluish-green to greenish-black.
Streak:Pale to dark blue-grey.
Hardness (Mohs):5 - 6

Crystallography of Eckermannite

Crystal System:Monoclinic
Cell Parameters:a = 9.76Å, b = 17.89Å, c = 5.28Å
β = 103.16°
Ratio:a:b:c = 0.546 : 1 : 0.295
Unit Cell Volume:V 897.71 ų (Calculated from Unit Cell)

Optical Data of Eckermannite

Type:Biaxial (-)
RI values: nα = 1.612 - 1.638 nβ = 1.625 - 1.652 nγ = 1.630 - 1.654
2V:Measured: 80° , Calculated: 40° to 62°
Maximum Birefringence:δ = 0.018

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

Chemical Properties of Eckermannite

Formula:
[Na][Na
 
2
][(Mg,Fe
2+
 
)
 
4
Al][(OH)
 
2
|Si
 
8
O
 
22
]
Essential elements:Al, H, Mg, Na, O, Si
All elements listed in formula:Al, Fe, H, Mg, Na, O, Si
Common Impurities:Ti,Mn,Zn,Ca,Li,K,F

Relationship of Eckermannite to other Species

Series:Forms a series with Ferro-eckermannite (see here)
Related Minerals - Nickel-Strunz Grouping):
9.DE.XIMA2007-053
KCa
 
2
(Fe
2+
4
Al)Si
 
6
Al
 
2
O
 
22
(OH)
 
2
9.DE.05Cummingtonite
[ ][Mg
 
2
][Mg
 
5
][(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.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
[(Ca,Pb)][(Ca,Pb)
 
2
][(Mg,Fe
2+
 
)
 
5
][(OH)
 
2
|BeSi
 
7
O
 
22
]
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.10Tschermakite
☐[Ca
 
2
][Mg
 
3
Fe
3+
 
Al][(OH)
 
2
|Al
 
2
Si
 
6
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.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.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.20Alumino-ferrowinchite
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.25Ferro-eckermannite
[Na][Na
 
2
][(Fe
2+
 
,Mg)
 
4
Al][(OH)
 
2
|Si
 
8
O
 
22
]
9.DE.25Clinoferroholmquistite
[ ][Li
 
2
][Fe
2+
3
Al
 
2
][(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-ferronyboite
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.25Ferriwhittakerite
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.25Ferri-ottoliniite
[](Na
 
1
Li
 
1
)(Fe
3+
2
Mg
 
3
)Si
 
8
O
 
22
(OH)
 
2
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
]
Related Minerals - Hey's Index Grouping:
17.2.1Topaz
Al
 
2
[(F,OH)
 
2
|SiO
 
4
]
17.2.2Polylithionite
KLi
 
2
Al[(F,OH)
 
2
|Si
 
4
O
 
10
]
17.2.3Leifite
(Na,H
 
2
O)Na
 
6
[F
 
2
|Be
 
2
Al
 
2
(Al,Si)Si
 
15
O
 
39
]
17.2.4Lepidolite
17.2.5Meliphanite
(Ca,Na)
 
2
(Be,Al)[Si
 
2
O
 
6
(OH,F)]
17.2.6Sarcolite
Na
 
2
Ca
 
12
(Ca,K,Fe,Sr,Mg)
 
2
Al
 
8
Si
 
12
(P,Si)O
 
52
F
 
2
17.2.7Götzenite
Na
 
2
Ca
 
5
Ti[F
 
4
|(Si
 
2
O
 
7
)
 
2
]
17.2.8Kuliokite-(Y)
Y
 
4
Al(SiO
 
4
)
 
2
(OH)
 
2
F
 
5
17.2.9Zinnwaldite
KLiFe
2+
 
Al[(F,OH)
 
2
|AlSi
 
3
O
 
10
]
17.2.10Magbasite
KBa(Al,Sc)(Mg,Fe)
 
6
Si
 
6
O
 
20
F
 
2

Other Names for Eckermannite

German names:
Eckermannit
Russian names:
Экерманнит
Spanish names:
Eckermannita

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 Eckermannite

Reference List:Mineralogical Record: 29: 169-174.

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

Internet Links for Eckermannite

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  • Raman and XRD data at RRUFF project
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    Localities for Eckermannite

    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.
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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.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Araxá
        • Ubá
    Burma (Myanmar)
     
    • Kachin State
      • Myitkyina-Mogaung District
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Rakovník (Rakonitz)
          • Čistá
    		No reference listed
    Greenland
     
    • Tunu (East Greenland) Province
      • Kangerlussuaq Firth
        • Kangerlussuaq complex
    		MinRec 16:485-494
    Italy
     
    • Aosta Valley
      • Nus
        • Saint-Barthélemy
    		• Barresi, A.A., Kolitsch, U., Ciriotti, M.E., Ambrino, P., Bracco, R., Bonacina, E. (2005): La miniera di manganese di Varenche (Aosta, Italia nord-occidentale): ardennite, arseniopleite, manganberzeliite, pirofanite, sarkinite, thortveitite, nuovo As-Sc-analogo della metavariscite e altre specie. Micro (località), 2/2005, 81-122.
    Japan
     
    • Honshu Island
      • Chubu Region
        • Niigata Prefecture
    		wwwsoc.nii.ac.jp/jampeg/93-11.htm.
    Fossa Magna Museum specimen, Itoigawa
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
    		[World of Stones 12:49]
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		www.koeln.netsurf.de/~w.steffens/khib.htm
    Spain
     
    • Canary Islands
      • Las Palmas Province
        • Gran Canaria (Grand Canary)
          • Arucas
            • Cardones
    		Hernandez-Pacheco, A., (1969): The Tahitites of Gran Canaria and their haüynitization, Bulletin volcanologique, Vol. 33, 701-728
    Sweden
     
    • Medelpad
      • Sundsvall
    		No reference listed
    • Småland
      • Jönköping
        • Gränna
    		GFF (1944) 64, 329-334; Amer. Mineral., 29, 455
    USA
     
    • California
      • Humboldt Co.
        • Orick
    		www.mineralogicalassociation.ca/doc/abstracts/cm5_Vol36_Oct98.pdf.
    • Colorado
      • Boulder Co.
        • Lake Albion
    		Minerals of Colorado (1997) Eckels, E. B.
      • Jackson Co.
        • Pearl District
    		Minerals of Colorado (1997) Eckels, E. B.
    Mineral and/or Locality
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