Ciprianiite Mineral Data (original) (raw)
General Ciprianiite Information
Ca4[(Th,U)(REE)]2(Al,[ ])2[Si4B4O22](OH,F)2
Molecular Weight = 1,032.51 gm
Lithium 0.03 % Li 0.06 % Li2O
Calcium 17.86 % Ca 24.98 % CaO
La,Ce,Pr,Nd,Sm, 10.18 % RE 11.88 % REE2O3
Thorium 14.16 % Th 16.11 % ThO2
Magnesium 0.12 % Mg 0.20 % MgO
Uranium 0.69 % U 0.78 % UO2
Titanium 0.46 % Ti 0.77 % TiO2
Beryllium 0.72 % Be 1.99 % BeO
Aluminum 1.25 % Al 2.37 % Al2O3
Iron 2.06 % Fe 2.94 % Fe2O3
Silicon 10.91 % Si 23.34 % SiO2
Boron 4.19 % B 13.49 % B2O3
Hydrogen 0.05 % H 0.47 % H2O
Oxygen 36.43 % O
Fluorine 0.90 % F 0.90 % F
______ ______
100.00 % 99.89 % = TOTAL OXIDE
Ca4REE0.73Th0.63Ca0.6U0.03Al0.48Fe3+0.38Ti0.1Mg0.05Be0.82Li0.04B4Si4.01O22O0.97(OH)0.54F0.49
Alkali-syenitic ejecta enclosed in pyroclastic formations of the Roma Comagmatic Province. (hellandite group; structure)
Approved IMA 2001 (Dana # Added)
Vico volcanic complex, Latium, Italy. Link to MinDat.org Location Data.
Named for Curzio Cipriani, Professor of Mineralogy and Head of the Museum of Natural History, Universita di Firenze, Italy.
IMA2001-021
Ciprianiite Image
Ciprianiite Comments: Black crystal of ciprianiite in quartz. Location: Monte Cavalluccio, Capagnano, Roma, Lazio, Italy.Scale: Picture size 2 mm. © Paul M. Schumacher |
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Ciprianiite Crystallography
a:b:c =4.0302:1:2.1761
a = 19.059, b = 4.729, c = 10.291, Z = 2; beta = 111.33° V = 863.99 Den(Calc)= 3.97
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/a
By Intensity(I/Io): 2.846(1)(411), 3.089(0.86)(412), 2.634(0.84)(611),2.653(0.8)(413), 2.648(0.79)(013), 3.454(0.79)(212), 4.729(0.72)(010),
Physical Properties of Ciprianiite
{100} Fair
Pale brown.
Transparent
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Anhedral Grains - Granular minerals without the expression of crystal shapes
Tabular - Form dimensions are thin in one direction.
Vitreous (Glassy)
white
Optical Properties of Ciprianiite
CI calc= 0.116 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1748,KC= 0.1977
Ncalc = 1.78
Biaxial (-), a=1.68, b=1.694, g=1.708, bire=0.0280
Calculated Properties of Ciprianiite
Bulk Density (Electron Density)=3.75 gm/cc
note: Specific Gravity of Ciprianiite =3.97 gm/cc.
Fermion Index = 0.04
Boson Index = 0.96
PECiprianiite = 396.65 barns/electron
U=PECiprianiite x relectron=1,486.95 barns/cc.
GRapi = 340,906.86 (Gamma Ray American Petroleum Institute Units)
Concentration of Ciprianiite per GRapi unit = 2.93 (PPM)
Ciprianiite 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) 89.22 ± 22.31 grams of pure Ciprianiite .
Estimated Maximum U.S. Postal Shipping Size(10 mRem/hr limit, Unshielded 100 cm box) 8922.3 ±2230.6 grams of pure Ciprianiite .
Estimated Radioactivity from Ciprianiite - strong
SpecimenSizeWeight/Volume(Sphere) * | CalculatedActivityBecquerels(Bq) | CalculatedActivityCuries (Ci) | EstimatedActivityGR(api) | EstimatedExposure(mRem**)/hrIf Held in HandFor One Hour |
---|---|---|---|---|
1000 gm / 7.84 cm | 7,581,627 | 2.05E-04 | 340,906.86 | 112.08 |
100 gm / 3.64 cm | 758,163 | 2.05E-05 | 34,090.69 | 11.21 |
10 gm / 1.69 cm | 75,816 | 2.05E-06 | 3,409.07 | 1.12 |
1 gm / 7.84 mm | 7,582 | 2.05E-07 | 340.91 | 0.11 |
0.1 gm / 3.64 mm | 758 | 2.05E-08 | 34.09 | 0.01 |
0.01 gm / 1.69 mm | 76 | 2.05E-09 | 3.41 | 0.00 |
0.001 gm / 0.78 mm | 8 | 2.05E-10 | 0.34 | 0.00 |
Weight of pure Ciprianiite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.97 gm/cc.*
Goverment Estimate of Average Annual Exposure (360 mRem)**
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Ciprianiite Classification
54.02.02.06 (54)Nesosilicate Borosilicates and Some Beryllosilicates
(54.02)with B in [4] coordination
(54.02.02)Hellandite group
54.02.02.01 Hellandite-(Y) (Ca,REE)4(Y,Ce)2(Al,[])2[Si4B4O22](OH)2 P 2/a 2/m
54.02.02.02 Tadzhikite-(Y)! Ca4(Y,Ce)2(Ti,Al,Fe,[])2[Si4B4O22](OH)2 P 2/a 2/m
54.02.02.03 Tadzhikite-(Ce) Ca4(Ce,Y)2(Ti,Al,Fe,[])2[Si4B4O22](OH)2 P 2/a 2/m
54.02.02.04 Hellandite-(Ce)! (Ca3REE)4Ce2Al[]2[Si4B4O22](OH)2 P 2/a 2/m
54.02.02.05 Mottanaite-(Ce)! Ca4(Ce,Ca)2AlBe2[Si4B4O22]O2 P 2/a 2/m
54.02.02.06 Ciprianiite! Ca4[(Th,U)(REE)]2(Al,[])2[Si4B4O22](OH,F)2 P 2/a 2/m
54.02.02.07 Piergorite-(Ce)! Ca8Ce2(Al0.5Fe0.5)([],Li,Be)2Si6B8O36(OH,F)2 P 2/a 2/m
09.DK.20 09 - SILICATES (Germanates)
09.D - Inosilicates* Structural terminology according to Liebau (1985)
09.DK -Inosilicates with 5-periodic single chains
09.DK.20 Hellandite-(Y) (Ca,REE)4(Y,Ce)2(Al,[])2[Si4B4O22](OH)2 P 2/a 2/m
09.DK.20 Tadzhikite-(Ce) Ca4(Ce,Y)2(Ti,Al,Fe,[])2[Si4B4O22](OH)2 P 2/a 2/m
09.DK.20 Tadzhikite-(Y)! Ca4(Y,Ce)2(Ti,Al,Fe,[])2[Si4B4O22](OH)2 P 2/a 2/m
09.DK.20 Ciprianiite! Ca4[(Th,U)(REE)]2(Al,[])2[Si4B4O22](OH,F)2 P 2/a 2/m
09.DK.20 Hellandite-(Ce)! (Ca3REE)4Ce2Al[]2[Si4B4O22](OH)2 P 2/a 2/m
09.DK.20 Mottanaite-(Ce)! Ca4(Ce,Ca)2AlBe2[Si4B4O22]O2 P 2/a 2/m
Other Ciprianiite Information
NAME( AmMin, 87:739) PHYS. PROP.(AmMin, 87:739) OPTIC PROP.(AmMin, 87:739)
Links to other databases for Ciprianiite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - Uranium Minerals
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Ciprianiite
Ca4[(Th,U)(REE)]2(Al,[ ])2[Si4B4O22](OH,F)2
Dana No: 54.02.02.06 Strunz No: 09.DK.20
Locality:
Notes: