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	 Clinoptilolite-Ca Mineral Data  |  |  | 
   
| General Clinoptilolite-Ca  Information  | 
|  Chemical  Formula: | (Ca,Na,K)2-3Al3(Al,Si)2Si13O36•12(H2O) | 
|  Composition: | Molecular Weight = 2,742.13 gm | 
|  | Potassium   1.50 %  K     1.80 % K2O | 
|  | Sodium      1.48 %  Na    1.99 % Na2O | 
|  | Calcium     2.78 %  Ca    3.89 % CaO | 
|  | Magnesium   0.15 %  Mg    0.25 % MgO | 
|  | Aluminum    6.61 %  Al   12.49 % Al2O3 | 
|  | Silicon    29.91 %  Si   63.98 % SiO2 | 
|  | Hydrogen    1.74 %  H    15.57 % H2O | 
|  | Oxygen     55.84 %  O | 
|  | ______        ______ | 
|  | 100.00 %       99.97 % = TOTAL OXIDE | 
|  Empirical Formula: | Ca1.9Na1.76K1.05Mg0.17Al6.72Si29.2O72•23.7(H2O) | 
|  Environment: | Most commonly formed as a devitrification product of silicic volcanic glass from tuffs.  Also occurs in cavities in rhyolites, andesites, and basalts. | 
|  IMA Status: | Approved IMA 1977 (Dana # Added) | 
|  Locality: | Kuruma Pass, Fukushima Prefecture, Japan. Link to MinDat.org Location Data. | 
|  Name Origin: | From the Greek klino - "oblique"  ptylon - "feather" and lithos - "stone.." The Ca-dominant member of the clinoptilolite series. | 
|  Name Pronunciation: | Clinoptilolite-Ca  + Pronunciation   | 
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