[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 Fluoro-sodic-pedrizite InformationNaLi2(Mg2Al2Li)S5Si8O22F2 |
Molecular Weight = 777.04 gm |
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Potassium 0.05 % K 0.06 % K2O |
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Sodium 1.98 % Na 2.67 % Na2O |
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Lithium 2.30 % Li 4.94 % Li2O |
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Calcium 0.21 % Ca 0.29 % CaO |
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Magnesium 5.69 % Mg 9.44 % MgO |
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Manganese 0.14 % Mn 0.18 % MnO |
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Aluminum 7.01 % Al 13.25 % Al2O3 |
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Zinc 0.08 % Zn 0.10 % ZnO |
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Chromium 0.07 % Cr 0.10 % Cr2O3 |
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Iron 3.74 % Fe 4.81 % FeO |
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Silicon 28.77 % Si 61.55 % SiO2 |
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Hydrogen 0.12 % H 1.04 % H2O |
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Oxygen 47.15 % O |
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Fluorine 2.69 % F 2.69 % F |
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- %
F -1.13 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Na0.64K0.01Li1.93Ca0.04Na0.03Mg1.69Fe2+0.31Al1.98Cr0.01Zn0.01Li0.64Fe2+0.21Mg0.13
Mn2+0.02Si3.96Al0.04Si4O22F1.1(OH)0.9 |
Occurs at the inner contact with lithium pegmatite around oligoclase andesite. Amphibole group. |
Approved IMA 2004 (Dana # Added) |
Tastyg spodumene deposit, Tuva, Siberia, Russia. Link to MinDat.org Location Data. |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). Clinoholmquistite discredited. |
Clinoholmquistite |
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IMA2004-002 |
| | Fluoro-sodic-pedrizite Image
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Fluoro-sodic-pedrizite Crystallographya:b:c =0.5317:1:0.2992 |
a = 9.368, b = 17.616, c = 5.271, Z = 2; beta = 102.38° V = 849.63 Den(Calc)= 3.04 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
By Intensity(I/Io): 2.675(1), 3.002(0.66), 8.11(0.56),4.39(0.54), 3.371(0.43), 2.869(0.26), |
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Mouse
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| Physical Properties of Fluoro-sodic-pedrizite{110} Perfect, {110} Perfect |
Pale blue. |
3 |
Transparent |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
5-6 - Between Apatite and Orthoclase |
Vitreous (Glassy) |
white |
| Optical Properties of Fluoro-sodic-pedriziteCI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.023 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.205,KPDmeas= 0.2078,KC= 0.21 Ncalc = 1.63 - 1.64 Biaxial (-), a=1.61, b=1.627, g=1.633, bire=0.0230 |
| Calculated Properties of Fluoro-sodic-pedriziteBulk Density (Electron Density)=2.97 gm/cc |
note: Specific Gravity of Fluoro-sodic-pedrizite =3.00 gm/cc. Fermion Index = 0.02 |
Boson Index = 0.98 PEFluoro-sodic-pedrizite = 2.72 barns/electron |
U=PEFluoro-sodic-pedrizite x relectron= 8.08 barns/cc. |
GRapi = 0.71 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Fluoro-sodic-pedrizite | Fluoro-sodic-pedrizite Classification66.01.01.09c (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.01)Group 1, the Mg-Fe-Mn-Li amphiboles (Monoclinic) |
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09.DE.05 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 Fluoro-sodic-pedrizite InformationNAME( AmMin 90:732) PHYS. PROP.(AmMin 90:732) OPTIC PROP.(AmMin 90:732) |
Links to other databases for Fluoro-sodic-pedrizite : |
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 Fluoro-sodic-pedrizite using: Visit our Advertisers for Fluoro-sodic-pedrizite : 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 Fluoro-sodic-pedrizite Mineral Data : Ask about Fluoro-sodic-pedrizite here : Print or Cut-and-Paste your Fluoro-sodic-pedrizite Specimen Label here :
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