[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store] See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM] Rare Minerals, Meteorites, Equipment and Analytical Services Excalibur Mineral Company, World leaders in the supply of rare species Serving the scientific and collector communities since 1974 General Ferri-ottoliniite Information[ ](Na,Li)(Mg3Fe+++2)Si8O22(OH)2 |
Molecular Weight = 865.55 gm |
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Potassium 0.32 % K 0.38 % K2O |
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Sodium 2.87 % Na 3.87 % Na2O |
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Lithium 1.32 % Li 2.85 % Li2O |
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Calcium 0.28 % Ca 0.39 % CaO |
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Magnesium 3.79 % Mg 6.29 % MgO |
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Titanium 0.33 % Ti 0.55 % TiO2 |
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Manganese 0.83 % Mn 1.07 % MnO |
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Aluminum 0.31 % Al 0.59 % Al2O3 |
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Zinc 2.34 % Zn 2.92 % ZnO |
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Iron 16.97 % Fe 7.64 % FeO / 15.77 % Fe2O3 |
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Silicon 25.96 % Si 55.53 % SiO2 |
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Hydrogen 0.18 % H 1.58 % H2O |
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Oxygen 43.48 % O |
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Fluorine 1.03 % F 1.03 % F |
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- %
F -0.43 % -O=F2 |
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______ ______ |
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100.00 % 100.02 % = TOTAL OXIDE |
Na0.38K0.07Li1.24Na0.7Ca0.06Fe2+0.92Mg1.35Mn2+0.13Zn0.31Fe3+1.71Al0.1Ti0.06Li0.41
Si8O22(OH)1.52F0.47 |
Found as relict cores in other amphiboles in hydrothermal episyenitic bodies in the Pedridza massif. (amphibole group; structure) |
Approved IMA 2004 (Dana # Added) |
East sector of the Pedriza Massif, Sierra de Guadarrama, Spanish Central System, Spain. Link to MinDat.org Location Data. |
Named for Luisa Ottolini (b. 1954), of CNR - Istituto di Geoscienze e Georisorse, Pavia, Italy, for her fundamental contributions to the advancement of ion-probe analysis of rock-fo rming minerals. |
IMA2001-067 |
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IMA2001-067a |
| | Search for Ferri-ottoliniite Images
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| | Ferri-ottoliniite Crystallographya:b:c =0.5333:1:0.2961 |
a = 9.535, b = 17.876, c = 5.294, Z = 2; beta = 102.54° V = 880.82 Den(Calc)= 3.26 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
By Intensity(I/Io): 8.256(1)(110), 2.709(0.81)(151), 2.501(0.68)(202),3.057(0.56)(310), 3.407(0.45)(131), 4.469(0.33)(040), 2.581(0.26)(061), 2.16(0.25)(261), |
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| Physical Properties of Ferri-ottoliniite{110} Perfect, {110} Perfect |
Black. |
Translucent |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Aggregates - Made of numerous individual crystals or clusters. |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
5-6 - Between Apatite and Orthoclase |
Vitreous (Glassy) |
gray |
| Optical Properties of Ferri-ottoliniiteBiaxial (?) |
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NCalc= 1.74 - from Gladstone-Dale relationship (KC = 0.2257) where Ncalc=Dcalc*KC+1 |
| Calculated Properties of Ferri-ottoliniiteBulk Density (Electron Density)=3.20 gm/cc |
note: Specific Gravity of Ferri-ottoliniite =3.26 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEFerri-ottoliniite = 7.66 barns/electron |
U=PEFerri-ottoliniite x relectron= 24.52 barns/cc. |
GRapi = 4.49 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Ferri-ottoliniite | Ferri-ottoliniite Classification66.01.03d.01 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03d)Group 5, the Na-Ca-Mg-Fe-Mn-Li amphiboles, where Li(b) = 0.50 apfu |
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09.DE.15 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 Ferri-ottoliniite InformationNAME( CanMin, 42:1244) PHYS. PROP.(CanMin, 42:1244) OPTIC PROP.(CanMin, 42:1244) |
Links to other databases for Ferri-ottoliniite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Ferri-ottoliniite using: Visit our Advertisers for Ferri-ottoliniite : 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 Ferri-ottoliniite Mineral Data : Ask about Ferri-ottoliniite here : Print or Cut-and-Paste your Ferri-ottoliniite Specimen Label here :
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