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Tschörtnerite

Big Photo

Caspar quarry, Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.), Bellerberg volcano, Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany
© Stephan Wolfsried

Formula:
Ca
 
4
(Ca,Sr,K,Ba)
 
3
Cu
 
3
[(OH)
 
2
|Al
 
3
Si
 
3
O
 
12
]
 
4
 · nH
 
2
O
System:IsometricColour:Light blue
Lustre:VitreousHardness:4½
Name:Named after Jochen Tschörtner (b. 1941) of Cologne (Germany), pharmaceutist, mineral collector and discoverer of the mineral.


Zeolite Group.

Classification of Tschörtnerite

IMA status:Approved
Strunz 8th edition ID:8/J.0-
Nickel-Strunz 10th (pending) edition ID:9.GF.40

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
F : Other Rare Zeolites
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Type Occurrence of Tschörtnerite

Type Locality:Caspar quarry, Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.), Bellerberg volcano, Ettringen, Mayen, Eifel Mts, Rhineland-Palatinate, Germany
Place of Conservation of Type Material:Institut für Mineralogie, Ruhr Universität Bochum, Germany
Geological Setting of type material:Ca-rich xenolite in leucite-tephrite lava

Physical Properties of Tschörtnerite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Light blue
Hardness (Mohs):4½
Hardness (Vickers):VHN30=350 kg/mm2
Cleavage:None Observed
Fracture:Conchoidal
Density (measured):2.1 g/cm3
Density (calculated):2.1 g/cm3

Crystallography of Tschörtnerite

Crystal System:Isometric
Cell Parameters:a = 31.62Å
Unit Cell Volume:V 31614 ų
Z:16
Morphology:hexahedron faces
Twinning:None

Optical Data of Tschörtnerite

Type:Isotropic
RI values: n = 1.504
Maximum Birefringence:δ = 0.000 - Isotropic minerals have no birefringence
Surface Relief:Low

Chemical Properties of Tschörtnerite

Formula:
Ca
 
4
(Ca,Sr,K,Ba)
 
3
Cu
 
3
[(OH)
 
2
|Al
 
3
Si
 
3
O
 
12
]
 
4
 · nH
 
2
O
Essential elements:Al, Ca, Cu, H, O, Si
All elements listed in formula:Al, Ba, Ca, Cu, H, K, O, Si, Sr

Relationship of Tschörtnerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.GF.05Terranovaite
(Na,Ca)
 
8
(Si
 
68
Al
 
12
)O
 
160
·29H
 
2
O
9.GF.10Gottardiite
Na
 
3
Mg
 
3
Ca
 
5
Al
 
19
Si
 
117
O
 
272
·93H
 
2
O
9.GF.15Lovdarite
(Na,K,Ca)
 
4
(Be,Al)
 
2
Si
 
6
O
 
16
·4H
 
2
O
9.GF.20Gaultite
Na
 
4
Zn
 
2
Si
 
7
O
 
18
·5H
 
2
O
9.GF.25Chiavennite
CaMnBe
 
2
Si
 
5
O
 
13
(OH)
 
2
·2H
 
2
O
9.GF.30Tschernichite
(Ca,Na
 
2
)[Al
 
2
Si
 
4
O
 
12
] · 4-8H
 
2
O
9.GF.35Mutinaite
Na
 
3
Ca
 
4
Si
 
85
Al
 
11
O
 
192
·60H
 
2
O
9.GF.50Thornasite
(Na,K)Th,Si
 
11
(O,OH,F,Cl)
 
25
·8H
 
2
O
9.GF.55Direnzoite
NaK
 
6
MgCa
 
2
(Al
 
13
Si
 
47
O
 
120
)·36H
 
2
O

Other Names for Tschörtnerite

Synonyms:
IMA1995-051
Other Languages:
German:Tschortnerit
Spanish:Tschortnerita

Other Information

Fluorescence in UV light:None
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 Tschörtnerite

Reference List:Effenberger, H., Giester, G., Krause, W., Bernhardt, H. J. (1998): "Tschörtnerite, a copper-bearing zeolite from the Bellberg volcano, Eifel, Germany", American Mineralogist: 83: 607-617.

Mineralogical Record: 30: 5-6.

Internet Links for Tschörtnerite

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    Localities for Tschörtnerite

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    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.
    Germany
     
    • Rhineland-Palatinate
      • Eifel Mts
        • Mayen
          • Ettringen
            • Bellerberg volcano
              • Ettringer Bellerberg Mt. (Bellberg Mt.; Bellenberg Mt.; Billenberg Mt.; Boilenberg Mt.)
    		AM 83 (1998), 607; EJM 10 (1998), 1037; Effenberger et al. (1998)
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