[Newest Minerals] [Mineral Auctions] [Mineral Gallery] The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame Visa, PayPal, and Mastercard are Welcomed General Zajacite-(Ce) InformationNa(REExCa1-x)(REEyCa1-y)F6 where (x ne y) |
Molecular Weight = 295.08 gm |
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Sodium 7.79 % Na 10.50 % Na2O |
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Calcium 16.98 % Ca 23.76 % CaO |
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La,Ce,Pr,Nd,Sm, 36.60 % RE 42.70 % REE2O3 |
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Fluorine 38.63 % F 38.63 % F |
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- %
F -16.27 % -O=F2 |
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______ ______ |
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100.00 % 99.32 % = TOTAL OXIDE |
NaREE0.5Ca0.5REE0.25Ca0.75F6 |
In a Precambrian perialkaline granitic complex. |
Approved IMA 1995 |
The Strange Lake rare-earth-element deposit, about 250 km northeast of Schefferville, Quebec, on the Quebec-Labrador border, Canada. Link to MinDat.org Location Data. |
For Dr. Ihor Stephan Zajac (1935- ), the geologist who lead the exploration group that discovered the Strange Lake deposit and who first reconized the mineral. |
Zajacite-(Ce) |
IMA1993-038 |
| | Zajacite-(Ce) Image
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Zajacite-(Ce) Crystallographya:c = 1:1.81406 |
a = 6.099, c = 11.064, Z = 3; V = 356.42 Den(Calc)= 4.12 |
Trigonal - RhombohedralH-M Symbol ( 3) Space Group: P 3 |
By Intensity(I/Io): 3.036(1), 1.757(0.8), 5.29(0.7), |
| Physical Properties of Zajacite-(Ce)None |
Colorless, Pale pink, Orange. |
4.44 - 4.55, Average = 4.49 |
Transparent |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
3.5 - Copper Penny |
Vitreous (Glassy) |
white |
| Optical Properties of Zajacite-(Ce)Uniaxial (+), w=1.483, e=1.503, bire=0.0200. |
| Calculated Properties of Zajacite-(Ce)Bulk Density (Electron Density)=3.79 gm/cc |
note: Specific Gravity of Zajacite-(Ce) =4.12 gm/cc. Fermion Index = 0.06 |
Boson Index = 0.94 PEZajacite-(Ce) = 227.92 barns/electron |
U=PEZajacite-(Ce) x relectron= 863.98 barns/cc. |
GRapi = 36,050.05 (Gamma Ray American Petroleum Institute Units)
Zajacite-(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)
843.73 ±210.93 grams of pure Zajacite-(Ce) .
Weight of pure Zajacite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.12 gm/cc.* | Zajacite-(Ce) Classification11.05.07.01 (11)Halide Complexes; Alumino-fluorides |
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(11.05)where (A)m B (X)6 |
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(11.05.07)Dana Group |
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03.AB.35 03 - HALIDES |
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03.A - Simple Halides, Without H2O |
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03.AB -M:X = 1:2 |
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| Other Zajacite-(Ce) InformationNAME( MinRec) PHYS. PROP.(Am.Min.,Vol.82,p1040,1997) OPTIC PROP.(MinRec) |
Links to other databases for Zajacite-(Ce) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - Handbook of Mineralogy (UofA) 6 - MinDAT 7 - MinMax(Deutsch) 8 - MinMax(English) 9 - Mineralienatlas (Deutsch) 10 - QUT Mineral Atlas 11 - Ruff.Info Search for Zajacite-(Ce) using: Visit our Advertisers for Zajacite-(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 Zajacite-(Ce) Mineral Data : Ask about Zajacite-(Ce) here : Print or Cut-and-Paste your Zajacite-(Ce) Specimen Label here :
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