[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions] Dan Weinrich Fine Minerals Full-time professional mineral dealer with over 31 years experience in mineral collecting And 15 years selling mineral specimens on the internet and at major mineral shows General Strontiochevkinite Information(Sr,REE)4Fe(Ti,Zr)2Ti2Si4O22 |
Molecular Weight = 1,140.23 gm |
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Strontium 23.05 % Sr 27.26 % SrO |
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La,Ce,Pr,Nd,Sm, 12.63 % RE 14.73 % REE2O3 |
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Zirconium 4.00 % Zr 5.40 % ZrO2 |
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Titanium 14.70 % Ti 24.52 % TiO2 |
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Iron 4.90 % Fe 6.30 % FeO |
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Silicon 9.85 % Si 21.08 % SiO2 |
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Oxygen 30.87 % O |
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100.00 % 99.30 % = TOTAL OXIDE |
Sr3REEFe2+Zr0.5Ti3.5Si4O22 |
Approved IMA 1983 |
Siama alkalic complex in Liaoning Province, China. Link to MinDat.org Location Data. |
Named as the Sr analog of chevkinite. |
Saimaite |
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| | Strontiochevkinite Crystallographya:b:c =2.4502:1:2.1007 |
a = 13.8934, b = 5.6703, c = 11.912, Z = 2; beta = 114.083° V = 856.74 Den(Calc)= 4.42 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/a |
By Intensity(I/Io): 3.01(1), 1.97(0.75), 2.19(0.7), |
| Physical Properties of StrontiochevkiniteBrownish black, Gray. |
5.44 |
Opaque |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
5-6 - Between Apatite and Orthoclase |
Sub Metallic |
brown |
| Optical Properties of StrontiochevkiniteNCalc= 1.98 - from Gladstone-Dale relationship (KC = 0.2222) where Ncalc=Dcalc*KC+1 |
NCalc= 2.21 - from Gladstone-Dale relationship (KC = 0.2222) where Ncalc=Dmeas*KC+1 | Calculated Properties of StrontiochevkiniteBulk Density (Electron Density)=4.11 gm/cc |
note: Specific Gravity of Strontiochevkinite =4.42 gm/cc. Fermion Index = 0.06 |
Boson Index = 0.94 PEStrontiochevkinite = 113.13 barns/electron |
U=PEStrontiochevkinite x relectron= 464.86 barns/cc. |
GRapi = 12,568.10 (Gamma Ray American Petroleum Institute Units)
Strontiochevkinite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Weight of pure Strontiochevkinite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.42 gm/cc.* | Strontiochevkinite Classification56.02.08.02 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O |
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(56.02)with cations in [4] and/or >[4] coordination |
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(56.02.08)Perierite - Chevkinite group |
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09.BE.70 09 - SILICATES (Germanates) |
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09.B - Sorosilicates |
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09.BE -Si2O7 groups with additional anions; |
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| Other Strontiochevkinite InformationPHYS. PROP.(AmMin, Vol 85, p 1844) |
Links to other databases for Strontiochevkinite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Strontiochevkinite using: Visit our Advertisers for Strontiochevkinite : 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 Strontiochevkinite Mineral Data : Ask about Strontiochevkinite here : Print or Cut-and-Paste your Strontiochevkinite Specimen Label here :
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