General Pseudo-autunite Information
|
Chemical Formula: |
(H3O)4Ca2(UO2)2(PO4)4·5(H2O) (?) |
Composition: |
Molecular Weight = 1,166.27 gm |
| |
Calcium 6.87 % Ca 9.62 % CaO |
| |
Uranium 40.82 % U 46.31 % UO2 |
| |
Phosphorus 10.62 % P 24.34 % P2O5 |
| |
Hydrogen 1.90 % H 16.99 % H2O |
| |
Oxygen 39.78 % O |
| |
______ ______ |
| |
100.00 % 97.26 % = TOTAL OXIDE |
Empirical Formula: |
(H3O)4Ca2(UO2)2(PO4)4·5(H2O) |
Environment: |
Fissures and cavities of albite-acmite veins in the contact zone of ultrabasic-alkalic rocks. |
IMA Status: |
Not Approved IMA 1968 |
Locality: |
Northern Karelia, Russia. Link to MinDat.org Location Data. |
Name Origin: |
Named for its similarity to autunite and meta-autunite in composition and occurrence. |
Synonym: |
Discredited |
| |
Search for Pseudo-autunite Images |
Images:
|
|
| | |
Pseudo-autunite Crystallography
|
Axial Ratios: |
a:b:c =1:1:1.8452 |
Cell Dimensions: |
a = 6.964, b = 6.964, c = 12.85, Z = 1; V = 623.19 Den(Calc)= 3.11 |
Crystal System: |
OrthorhombicSpace Group: Unk |
X Ray Diffraction: |
By Intensity(I/Io): 3.25(1), 6.2(1), 1.92(0.9), |
| |
Physical Properties of Pseudo-autunite
|
Color: |
Yellow, White. |
Density: |
3.28 |
Habit: |
Platy - Sheet forms (e.g. micas). |
Habit: |
Pseudo Hexagonal - Crystals show a hexagonal outline. |
Hardness: |
2-3 - Gypsum-Calcite |
Luminescence: |
Fluorescent and phosphorescent, Short UV=intense yellowish green, Long UV=yellowish green. |
| |
Optical Properties of Pseudo-autunite
|
Gladstone-Dale: |
CI meas= -0.011 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.066 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.18,KPDmeas= 0.1706,KC= 0.1688 |
Optical Data: |
Biaxial (-), a=1.541, b=1.568, g=1.57, bire=0.0290, 2V(Calc)=30, 2V(Meas)=32. |
| |
Calculated Properties of Pseudo-autunite
|
Electron Density: |
relectron=3.03 gm/cc note: rPseudo-autunite =3.28 gm/cc. |
Fermion Index |
Fermion Index = 0.00322 Boson Index = 0.99678 |
Photoelectric: |
PEPseudo-autunite =1,005.29 barns/electron U=PEPseudo-autunite x relectron=3,042.13 barns/cc. |
Radioactivity: |
GRapi = 3,210,037.49 (Gamma Ray American Petroleum Institute Units)
Pseudo-autunite 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)
9.48 ± 2.37 grams of pure Pseudo-autunite .
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 100 cm box)
947.55 ±236.89 grams of pure Pseudo-autunite .
Estimated Radioactivity from Pseudo-autunite - very strong
Specimen Size Weight/Volume (Sphere) * |
Calculated Activity Bequerols (Bq) |
Calculated Activity Curies (Ci) |
Estimated Activity GR(api) |
Estimated Exposure (mRem**)/hr If Held in Hand For One Hour |
| 1000 gm / 8.35 cm |
73,065,938 |
1.97E-03 |
3,210,037.49 |
1,055.35 |
| 100 gm / 3.88 cm |
7,306,594 |
1.97E-04 |
321,003.75 |
105.54 |
| 10 gm / 1.80 cm |
730,659 |
1.97E-05 |
32,100.37 |
10.55 |
| 1 gm / 8.35 mm |
73,066 |
1.97E-06 |
3,210.04 |
1.06 |
| 0.1 gm / 3.88 mm |
7,307 |
1.97E-07 |
321.00 |
0.11 |
| 0.01 gm / 1.80 mm |
731 |
1.97E-08 |
32.10 |
0.01 |
| 0.001 gm / 0.84 mm |
73 |
1.97E-09 |
3.21 |
0.00 |
Weight of pure Pseudo-autunite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.28 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
|
| |
Pseudo-autunite Classification
|
Dana Class: |
40.2a.1.3 (40)Hydrated Phosphates, etc |
| |
(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++ |
| |
(40.2a.1)Dana Group |
| |
40.2a.1.1 Autunite Ca(UO2)2(PO4)2·10-12(H2O) I 4/mmm 4/m 2/m 2/m |
| |
40.2a.1.2 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m |
| |
40.2a.1.3 Pseudo-autunite * (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho |
| |
40.2a.1.4 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m |
Strunz Class: |
VII/E.02-180 VII - Phosphates, Arsenates and Vanadates |
| |
VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6- |
| |
VII/E.02 - Meta-autunite group |
| |
VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m |
| |
VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 21/m 2/m |
| |
VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
| |
VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 21/n 2/m |
| |
VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m |
| |
VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m |
| |
VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m |
| |
VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 41/m 4/m |
| |
VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-95 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 21 2 |
| |
VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 41/? 4/m |
| |
VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m |
| |
VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m |
| |
VII/E.02-180 Pseudo-autunite (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho |
| |
VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m |
| |
Other Pseudo-autunite Information
|
References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Pseudo-autunite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - EUROmin Project
4 -Google Images
5 -Google Scholar
6 -MinDAT
7 -MinMax(Deutsch)
8 -MinMax(English)
9 -Mineralienatlas (Deutsch)
10 -QUT Mineral Atlas
Search for Pseudo-autunite using:
[ALTAVISTA]
[AOL]
[About.com]
[All-The-Web]
[HotBot]
[Ixquick]
[LookSmart]
[MAMMA]
[MSN.COM]
[Netscape]
[Teoma]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Pseudo-autunite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop
Translate Pseudo-autunite Mineral Data :
Ask about Pseudo-autunite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Español
Print or Cut-and-Paste your Pseudo-autunite Specimen Label here :
|
Pseudo-autunite
(H3O)4Ca2(UO2)2(PO4)4·5(H2O) (?)
Dana No: 40.2a.1.3 Strunz No: VII/E.02-180
Locality:
Notes:
|
|
| |
| |
|
| |