[Mineral Galleries] [About Me] [e-Bay Items] [Latest News] [How to Order] A Diverse Selection of Beautifully Unique Gem & Mineral Specimens Desert Winds Gems & Minerals • For All Levels of Collectors Worldwide Aesthetic & Rare Mineral Specimens • Regular Updates General Tritomite-(Ce) Information(Ce,La,Ca,Y,Th)5(Si,B)3(O,OH,F)13 |
Molecular Weight = 787.79 gm |
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Calcium 10.17 % Ca 14.24 % CaO |
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Lanthanum 17.63 % La 20.68 % La2O3 |
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Cerium 26.68 % Ce 31.25 % Ce2O3 |
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Yttrium 3.95 % Y 5.02 % Y2O3 |
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Thorium 4.42 % Th 5.03 % ThO2 |
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Silicon 8.91 % Si 19.07 % SiO2 |
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Boron 0.69 % B 2.21 % B2O3 |
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Hydrogen 0.38 % H 3.43 % H2O |
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Oxygen 22.34 % O |
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Fluorine 4.82 % F 4.82 % F |
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- %
F -2.03 % -O=F2 |
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______ ______ |
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100.00 % 103.71 % = TOTAL OXIDE |
5(Ce0.3)5(Ca0.4)5(La0.2)5(Y0.07)5(Th0.03)Si2.5B0.5O8(OH)3F2 |
Nepheline Syenite. |
Valid Species (Pre-IMA) 1849 |
Laven Island, Langesundfiord district, near Brevik, southern Norway. Link to MinDat.org Location Data. |
Named from the Greek for "three" and "to cut," in allusion to the trihedral cavities left in the host rock by the crystals. |
Tritomite-(Ce) + Pronunciation |
Tritomite |
| | Tritomite-(Ce) Image
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Tritomite-(Ce) Crystallographya:c = 1:0.73582 |
a = 9.35, c = 6.88, Z = 2; V = 520.89 Den(Calc)= 5.02 |
Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m |
By Intensity(I/Io): 2.81(1), 1.84(0.4), 3.44(0.4), |
| Physical Properties of Tritomite-(Ce)None |
Dark brown. |
4.2 |
Translucent to Subopaque |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Metamict - Mineral originally crystalline, now amorphous due to radiation damage. |
Pyramidal - Crystals are shaped like pyramids. |
5.5 - Knife Blade |
Vitreous - Resinous |
| Optical Properties of Tritomite-(Ce)CI meas= 0.073 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.225 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1401,KPDmeas= 0.1675,KC= 0.1808 Ncalc = 1.76 - 1.91 Isotropic, n=1.65-1.757. |
| Calculated Properties of Tritomite-(Ce)Bulk Density (Electron Density)=3.81 gm/cc |
note: Specific Gravity of Tritomite-(Ce) =4.20 gm/cc. Fermion Index = 0.0059314927 |
Boson Index = 0.9940685073 PETritomite-(Ce) = 328.36 barns/electron |
U=PETritomite-(Ce) x relectron=1,252.21 barns/cc. |
GRapi = 85,580.96 (Gamma Ray American Petroleum Institute Units)
Tritomite-(Ce) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram. Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 10 cm box)
355.41 ± 88.85 grams of pure Tritomite-(Ce) .
Weight of pure Tritomite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.20 gm/cc.* | Tritomite-(Ce) Classification54.02.05.01 (54)Nesosilicate Borosilicates and Some Beryllosilicates |
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(54.02)with B in [4] coordination |
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(54.02.05)Tritomite group |
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09.AH.30 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AH -Nesosilicates with CO3, SO4, PO4, etc. |
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| Other Tritomite-(Ce) InformationNAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Tritomite-(Ce) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (UofA) 7 - MinDAT 8 - MinMax(Deutsch) 9 - MinMax(English) 10 - Mineralienatlas (Deutsch) 11 - QUT Mineral Atlas 12 - Ruff.Info 13 - Uranium Minerals Search for Tritomite-(Ce) using: Visit our Advertisers for Tritomite-(Ce) : 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 Tritomite-(Ce) Mineral Data : Ask about Tritomite-(Ce) here : Print or Cut-and-Paste your Tritomite-(Ce) Specimen Label here :
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