Trogerite Mineral Data

General Trogerite Information

Chemical Formula:

H2(UO2)2(AsO4)2•8(H2O)

Composition:

Molecular Weight = 964.03 gm

Uranium 49.38 % U 56.02 % UO₂

Arsenic 15.54 % As 23.84 % As₂O₅

Hydrogen 1.88 % H 16.82 % H₂O

Oxygen 33.19 % O

______ ______

100.00 % 96.68 % = TOTAL OXIDE

Empirical Formula:

H₂(UO₂)₂(AsO₄)₂•8(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1871

Locality:

Walpurgis vein of the Weisser Hirsch mine, Neustadtl, Schneeberg, Saxony, Germany Link to MinDat.org Location Data.

Name Origin:

Named for R. Troger, mining offical at Schneeberg, Germany.

Name Pronunciation:

Trogerite + Pronunciation

Synonym:

Troegerite

Trogerite Image

Images:

Trogerite Metazeunerite

Comments: Yellow crystals of trÃ¶gerite with green metazeunerite.
Location: Walpurgis Flats, WeiÃŸer Hirsch Mine, NeustÃ¤dtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Trogerite Crystallography

Axial Ratios:

a:c = 1:1.22905

Cell Dimensions:

a = 7.16, c = 8.8, Z = 1; V = 451.14 Den(Calc)= 3.55

Crystal System:

Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 8.59(1), 3.79(0.9), 3.3(0.8),

Physical Properties of Trogerite

Cleavage:

{001} Perfect, {100} Good

Color:

Yellow.

Density:

3.55

Diaphaneity:

Transparent

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Habit:

Striated - Parallel lines on crystal surface or cleavage face.

Hardness:

2-3 - Gypsum-Calcite

Luminescence:

Fluorescent, Short UV=lemon-yellow, Long UV=lemon-yellow.

Luster:

Vitreous - Pearly

Optical Properties of Trogerite

Gladstone-Dale:

CI meas= -0.127 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.127 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1711,KPDmeas= 0.1711,KC= 0.1518
Ncalc = 1.54

Optical Data:

Uniaxial (-), e=1.585, w=1.63, bire=0.0450.

Calculated Properties of Trogerite

Electron Density:

Bulk Density (Electron Density)=3.15 gm/cc
note: Specific Gravity of Trogerite =3.55 gm/cc.

Fermion Index:

Fermion Index = 0.0037176485
Boson Index = 0.9962823515

Photoelectric:

PE_Trogerite=1,273.14 barns/electron
U=PE_Trogerite x r_electron=4,013.16 barns/cc.

Radioactivity:

GRapi = 3,737,527.18 (Gamma Ray American Petroleum Institute Units)
Concentration of Trogerite per GRapi unit = 267.56 (PPB)

Trogerite 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) 8.14 ± 2.03 grams of pure Trogerite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 813.82 ±203.45 grams of pure Trogerite .

**Estimated Radioactivity from Trogerite** - 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 / 8.13 cm	88,393,698	2.39E-03	3,737,527.18	1,228.78
100 gm / 3.78 cm	8,839,370	2.39E-04	373,752.72	122.88
10 gm / 1.75 cm	883,937	2.39E-05	37,375.27	12.29
1 gm / 8.13 mm	88,394	2.39E-06	3,737.53	1.23
0.1 gm / 3.78 mm	8,839	2.39E-07	373.75	0.12
0.01 gm / 1.75 mm	884	2.39E-08	37.38	0.01
0.001 gm / 0.81 mm	88	2.39E-09	3.74	0.00

Weight of pure Trogerite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.55 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

Trogerite Classification

Dana Class:

40.02a.20.01 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) ï¿½ x(H2O), containing (UO2)++

(40.02a.20)Dana Group

40.02a.20.01 Trogerite H2(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m

Strunz Class:

08.EB.15 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EB -UO2:RO4 = 1:1

08.EB.15 Abernathyite K(UO2)(AsO4)•4(H2O) P 4/ncc 4/m 2/m 2/m

08.EB.15 Chernikovite (H3O)2(UO2)2(PO4)2•6(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.15 Meta-ankoleite K2(UO2)2(PO4)2•6(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.15 Natrouranospinite (Na2,Ca)(UO2)2(AsO4)2•5(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.15 Uramphite (NH4)(UO2)(PO4)•3(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.15 Trogerite H2(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m

08.EB.15 Uramarsite! (NH4,H3O)2(UO2)2(AsO4,PO4)2•6H2O P 4/mmm 4/m 2/m 2/m

Other Trogerite Information

References:

NAME( Dana8) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Trogerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - Uranium Minerals

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Print or Cut-and-Paste your Trogerite Specimen Label here :

Trogerite

H2(UO2)2(AsO4)2•8(H2O)
Dana No: 40.02a.20.01 Strunz No: 08.EB.15
Locality:

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