Material Name: | Roggianite | ||||
Chemical Formula: |
|Ca16 (H2O)19 | [Be8Al16Si32O104(OH)16]--RON |
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Unit Cell: |
tetragonal |
I 4/m c m (# 140) |
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a' = 18.3300 Å | b' = 18.3300 Å | c' = 9.1600 Å | |||
α' = 90.000° | β' = 90.000° | γ' = 90.000° | |||
Framework Density: |
18.2 T/1000 Å3 |
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Channels: |
[001] 12 4.3 x 4.3*
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References: |
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Giuseppetti, G., Mazzi, F., Tadini, C. and Galli, E. | |||
"The revised crystal structure of roggianite: Ca2[Be(OH)2Al2Si4O13]·2.5H2O" | |||
N. Jb. Miner. Mh., 7, 307-314 (1991) |
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Name and Code derivation: |
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Roggianite -RON |
Limiting Rings | |
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12-ring viewed along [001] |