Metaschoepite Mineral Data

Metaschoepite Mineral Data +

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Metaschoepite Information

Chemical Formula:

UO3·n(H2O)(n<2)

Composition:

Molecular Weight = 313.05 gm

Uranium 76.04 % U 91.37 % UO₃

Hydrogen 0.97 % H 8.63 % H₂O

Oxygen 23.00 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

UO₃·1.5(H₂O)

IMA Status:

Approved IMA 1960

Locality:

Kasolo (Shinkolobwe), Katanga (Shaba), Congo (Zaïre) Link to MinDat.org Location Data.

Name Origin:

Named as the lower hydrate of schoepite.

Synonym:

ICSD 280386

PDF 43-364

Metaschoepite Image

Images:

Click Here for Larger Metaschoepite Image

Metaschoepite Antlerite

Comments: Yellow crystals of metaschoepite with green antlerite.
Location: P?hla-Tellerh?user Gallery, P?hla, Schwarzenberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1.3 mm.
© Thomas Witzke / Abraxas-Verlag

Metaschoepite Crystallography

Axial Ratios:

a:b:c =0.8367:1:0.8809

Cell Dimensions:

a = 13.99, b = 16.72, c = 14.73, Z = 32; V = 3,445.54 Den(Calc)= 4.83

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbna

Physical Properties of Metaschoepite

Cleavage:

[001] Perfect, [010] Distinct

Color:

Yellow, Golden yellow.

Density:

4.69

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

2.5 - Finger Nail

Streak:

light yellow

Optical Properties of Metaschoepite

Optical Data:

NCalc= 1.66 - from Gladstone-Dale relationship (KC = 0.1372) where Ncalc=Dcalc*KC+1
NCalc= 1.64 - from Gladstone-Dale relationship (KC = 0.1372) where Ncalc=Dmeas*KC+1

Calculated Properties of Metaschoepite

Electron Density:

r_electron=4.04 gm/cc
note: r_{Metaschoepite}=4.83 gm/cc.

Fermion Index

Fermion Index = 0.00558
Boson Index = 0.99442

Photoelectric:

PE_{Metaschoepite}=2,061.19 barns/electron
U=PE_{Metaschoepite} x r_electron=8,332.08 barns/cc.

Radioactivity:

GRapi = 5,424,218.54 (Gamma Ray American Petroleum Institute Units)

Metaschoepite 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) 5.61 ± 1.40 grams of pure Metaschoepite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 560.76 ±140.19 grams of pure Metaschoepite .

**Estimated Radioactivity from Metaschoepite** - 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 / 7.34 cm	136,103,402	3.68E-03	5,424,218.54	1,783.30
100 gm / 3.41 cm	13,610,340	3.68E-04	542,421.85	178.33
10 gm / 1.58 cm	1,361,034	3.68E-05	54,242.19	17.83
1 gm / 7.34 mm	136,103	3.68E-06	5,424.22	1.78
0.1 gm / 3.41 mm	13,610	3.68E-07	542.42	0.18
0.01 gm / 1.58 mm	1,361	3.68E-08	54.24	0.02
0.001 gm / 0.73 mm	136	3.68E-09	5.42	0.00

Weight of pure Metaschoepite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.83 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

Metaschoepite Classification

Dana Class:

5.2.1.1 (5)Oxides Containing Uranium and Thorium

(5.2)with a cation charge of 6+ (AO3) and hydrated

(5.2.1)Dana Group

5.2.1.1 Metaschoepite UO3·n(H2O)(n<2) Pbna 2/m 2/m 2/m

5.2.1.2 Paraschoepite UO3·2(H2O)(?) P bca 2/m 2/m 2/m

5.2.1.3 Schoepite (UO2)8O2(OH)12·12(H2O) P 2₁ca mm2

Strunz Class:

IV/H.01-50 IV - Oxides

IV/H - Uranyl ([UO2]2+) hydroxides and hydrates

IV/H.01 - Ianthinite - Paraschoepite series

IV/H.01-10 Ianthinite (UO2)·5(UO3)·10(H2O) P 2₁cn mm2

IV/H.01-20 Studtite [(UO2)O2(H2O)2](H2O)2 C 2/m 2/m

IV/H.01-30 Metastudtite UO4·2(H2O) I mmm 2/m 2/m 2/m

IV/H.01-40 Schoepite (UO2)8O2(OH)12·12(H2O) P 2₁ca mm2

IV/H.01-50 Metaschoepite UO3·n(H2O)(n<2) Pbna 2/m 2/m 2/m

IV/H.01-60 Paraschoepite UO3·2(H2O)(?) P bca 2/m 2/m 2/m

Other Metaschoepite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Metaschoepite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

Search for Metaschoepite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Metaschoepite :
AA Mineral Specimens
B and L Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Metaschoepite Mineral Data :

Ask about Metaschoepite 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 Metaschoepite Specimen Label here :

Metaschoepite

UO3·n(H2O)(n<2)
Dana No: 5.2.1.1 Strunz No: IV/H.01-50
Locality:

Notes: