|
| Home | Crystal | jmol | jPOWD | Chem | X Ray | Dana | Strunz | Properties | A to Z | Images | Share | News | Help | About |
General Cadwaladerite Information |
|||
 Chemical Formula: |
Al(OH)2Cl•4(H2O) | ||
| Composition: |
Molecular Weight = 168.51 gm | ||
| Aluminum 16.01 % Al 30.25 % Al2O3 | |||
| Hydrogen 5.98 % H 53.45 % H2O | |||
| Chlorine 21.04 % Cl 21.04 % Cl | |||
| - % Cl -4.75 % -O=Cl2 | |||
| Oxygen 56.97 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Al(OH)2Cl•4(H2O) | ||
| Environment: |
In a sulfate deposit, embedded in halite. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1941 | ||
| Locality: |
On mine dumps at Cerro Pintados, 80 km southeast of Iquique, Tarapaca, Chile. Link to MinDat.org Location Data. | ||
| Name Origin: |
For Charles Meigs Biddle Cadwalader, formerly President of the Academy of Natural Sciences, Philadelphia, Pennsylvania, USA. | ||
| Name Pronunciation: |
Cadwaladerite + Pronunciation  |
||
Cadwaladerite Image | |||
|
Images:
|
|
||
Cadwaladerite Crystallography |
|||
| Crystal System: |
Amorphous- No Crystals | ||
Physical Properties of Cadwaladerite |
|||
| Cleavage: |
None | ||
| Color: |
Lemon. | ||
| Density: |
1.66 | ||
| Diaphaneity: |
Transparent | ||
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). | ||
| Luster: |
Vitreous (Glassy) | ||
Optical Properties of Cadwaladerite |
|||
| Gladstone-Dale: |
CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC) KPDmeas= 0.309,KC= 0.3109 Ncalc = 1.52 |
||
| Optical Data: |
Isotropic, n=1.513. | ||
Calculated Properties of Cadwaladerite |
|||
| Electron Density: |
Bulk Density (Electron Density)=1.73 gm/cc note: Specific Gravity of Cadwaladerite =1.66 gm/cc. |
||
| Fermion Index: |
Fermion Index = 0.0002824175 Boson Index = 0.9997175825 |
||
| Photoelectric: |
PECadwaladerite = 1.92 barns/electron U=PECadwaladerite x rElectron Density= 3.33 barns/cc. |
||
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Cadwaladerite is Not Radioactive |
||
Cadwaladerite Classification |
|||
| Dana Class: |
10.05.01.01 (10)Oxyhalides and Hydroxyhalides | ||
| (10.05)where Am (O,OH)p Xq | |||
| (10.05.01)Dana Group | |||
| Strunz Class: |
03.BD.05 03 - HALIDES | ||
| 03.B - Simple Halides, with H2O | |||
| 03.BD -Simple Halides with H2O and additional OH | |||
Other Cadwaladerite Information |
|||
| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Cadwaladerite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Cadwaladerite using: Visit our Advertisers for Cadwaladerite : A Bijoux Google Search for CadwaladeriteAdam's Minerals Google Search for Cadwaladerite Cape Minerals Google Search for Cadwaladerite Dakota Matrix Minerals Google Search for Cadwaladerite Excalibur Mineral Corp. Google Search for Cadwaladerite Exceptional Minerals Google Search for Cadwaladerite John Betts Fine Minerals Search for Cadwaladerite McDougall Minerals Google Search for Cadwaladerite Mineral News Website Link Rock and Mineral Shows Google Search for Cadwaladerite Weinrich Minerals, Inc. Google Search for Cadwaladerite Ask about Cadwaladerite here : Print or Cut-and-Paste your Cadwaladerite Specimen Label here :
|
||
