[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts] See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM] Mineral News was founded some twenty years ago and has developed a following of avid mineral collectors seeking timely information about new finds and other items of interest to the collector community. Articles are solicited from collector and scientific authors. General Ferro-eckermannite InformationNaNa2(Fe++4Al)Si8O22(OH)2 |
Molecular Weight = 930.02 gm |
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Sodium 7.42 % Na 10.00 % Na2O |
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Aluminum 2.90 % Al 5.48 % Al2O3 |
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Iron 24.02 % Fe 30.90 % FeO |
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Silicon 24.16 % Si 51.68 % SiO2 |
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Hydrogen 0.22 % H 1.94 % H2O |
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Oxygen 41.29 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Na3Fe2+4Al(Si8O22)(OH)2 |
Approved IMA 1964 |
Link to MinDat.org Location Data. |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). |
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Ferro-eckermannite Crystallography Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Physical Properties of Ferro-eckermanniteGreen. |
5-6 - Between Apatite and Orthoclase |
| Optical Properties of Ferro-eckermannite |
| Calculated Properties of Ferro-eckermanniteFermion Index = 0.01 |
Boson Index = 0.99 PEFerro-eckermannite = 8.26 barns/electron |
U=PEFerro-eckermannite x rElectron Density= . barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferro-eckermannite is Not Radioactive | Ferro-eckermannite Classification66.01.03c.07 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03c)Group 4, the sodic amphiboles |
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09.DE.25 09 - SILICATES (Germanates) |
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09.D - Inosilicates* Structural terminology according to Liebau (1985) |
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09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family |
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| Other Ferro-eckermannite InformationPHYS. PROP.(List of New Min. Names,28-33th,1974-1984) |
Links to other databases for Ferro-eckermannite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - MinMax(Deutsch) 8 - MinMax(English) 9 - Mineralienatlas (Deutsch) 10 - QUT Mineral Atlas 11 - Ruff.Info Search for Ferro-eckermannite using: Visit our Advertisers for Ferro-eckermannite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Ferro-eckermannite Mineral Data : Ask about Ferro-eckermannite here : Print or Cut-and-Paste your Ferro-eckermannite Specimen Label here :
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