| Reference Type | Journal (article/letter/editorial) |
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| Title | Bellbergite—a new mineral with the zeolite structure type EAB |
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| Journal | Mineralogy and Petrology |
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| Authors | Rüdinger, B. | Author |
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| Tillmanns, E. | Author |
| Hentschel, G. | Author |
| Rüdinger, B. | Author |
| Tillmanns, E. | Author |
| Hentschel, G. | Author |
| Year | 1993 | Volume | 48 |
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| Issue | 2 |
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| Publisher | Springer-Verlag |
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| URL | |
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| DOI | doi:10.1007/bf01163093Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 15970 | Long-form Identifier | mindat:1:5:15970:8 |
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| GUID | 0 |
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| Full Reference | Rüdinger, B., Tillmanns, E., Hentschel, G., Rüdinger, B., Tillmanns, E., Hentschel, G. (1993) Bellbergite—a new mineral with the zeolite structure type EAB. Mineralogy and Petrology, 48 (2) 147-152 doi:10.1007/bf01163093 |
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| Plain Text | Rüdinger, B., Tillmanns, E., Hentschel, G., Rüdinger, B., Tillmanns, E., Hentschel, G. (1993) Bellbergite—a new mineral with the zeolite structure type EAB. Mineralogy and Petrology, 48 (2) 147-152 doi:10.1007/bf01163093 |
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| In | (1993) Mineralogy and Petrology Vol. 48 (2) Springer Science and Business Media LLC |
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| Abstract/Notes | The new mineral bellbergite, (K, Ba, Sr)2Sr2Ca2(Ca, Na)4Al18Si18O72 · 30H2O, has been found in Ca-rich xenoliths at the Bellberg volcano near Mayen, Eifel, Germany. It occurs as well formed bipyramids with a length up to 0.3 mm. Possible space groups are P63/mmc, P62c and P63mc with a = 13.244(1) Å, c = 15.988(2) Å, V = 2429 Å3, Z = 1. The density is: Dm, = 2.20(2) Mg/m3, Dc = 2.19 Mg/m3. The empirical formula based on 72 oxygen atoms is: Ba0.26Na0.72K1.33Sr2.36Ca5.32Al17.55Si18.36O72 · 30H2O. The mineral is uniaxial negative with ω = 1.522(2) and ε = 1.507(2) (λ = 589 nm). The strongest lines in the X-ray powder pattern are (d (Å), I, hkl): 3.80 (100) (300, 212, 104), 6.58 (80) (102), 2.95 (70) (312, 214), 2.21 (70) (330), 2.70 (50) (402), 2.50 (50) (410, 314), 1.83 (50) (416). The crystal structure corresponds to the zeolite structure type EAB. |
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