Thorosteenstrupine Mineral Data

[Newest Minerals] [Mineral Auctions] [Mineral Gallery]
The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame
Visa, PayPal, and Mastercard are Welcomed

General Thorosteenstrupine Information

Chemical Formula:

(Ca,Th,Mn)3Si4O11F•6(H2O)

Composition:

Molecular Weight = 712.88 gm

Calcium 10.12 % Ca 14.16 % CaO

Thorium 29.29 % Th 33.33 % ThO₂

Manganese 2.31 % Mn 2.99 % MnO

Silicon 15.76 % Si 33.71 % SiO₂

Hydrogen 1.70 % H 15.16 % H₂O

Oxygen 38.15 % O

Fluorine 2.67 % F 2.67 % F

- % F -1.12 % -O=F₂

______ ______

100.00 % 100.90 % = TOTAL OXIDE

Empirical Formula:

Ca_1.8Th_0.9Mn²⁺_0.3Si₄O₁₁F•6(H₂O)

Environment:

Metasomatic veins associated with orthoclase.

IMA Status:

Approved IMA 1962

Locality:

Unspecified locality in eastern Siberia, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for steenstrupine and the thorium content.

Name Pronunciation:

Thorosteenstrupine + Pronunciation

Search for Thorosteenstrupine Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Thorosteenstrupine Crystallography

Crystal System:

Amorphous- No Crystals

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

By Intensity(I/I_o): 2.61(1), 3.25(1), 4.08(1),

Physical Properties of Thorosteenstrupine

Color:

Dark brown, Black, Black brown.

Density:

3.02

Diaphaneity:

Translucent to Opaque

Hardness:

4 - Fluorite

Luster:

Vitreous - Greasy

Streak:

dark brown

Optical Properties of Thorosteenstrupine

Gladstone-Dale:

CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2136,KC= 0.2142
Ncalc = 1.65

Optical Data:

Isotropic, n=1.63-1.66.

Calculated Properties of Thorosteenstrupine

Electron Density:

Bulk Density (Electron Density)=2.86 gm/cc
note: Specific Gravity of Thorosteenstrupine =3.02 gm/cc.

Fermion Index:

Fermion Index = 0.0076819759
Boson Index = 0.9923180241

Photoelectric:

PE_{Thorosteenstrupine}= 653.40 barns/electron
U=PE_{Thorosteenstrupine} x r_electron=1,868.42 barns/cc.

Radioactivity:

GRapi = 591,738.05 (Gamma Ray American Petroleum Institute Units)
Concentration of Thorosteenstrupine per GRapi unit =1,689.94 (PPB)

Thorosteenstrupine 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) 51.40 ± 12.85 grams of pure Thorosteenstrupine .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 5140.2 ±1285.1 grams of pure Thorosteenstrupine .

**Estimated Radioactivity from Thorosteenstrupine** - 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 / 8.58 cm	13,123,885	3.55E-04	591,738.05	194.54
100 gm / 3.98 cm	1,312,389	3.55E-05	59,173.81	19.45
10 gm / 1.85 cm	131,239	3.55E-06	5,917.38	1.95
1 gm / 8.58 mm	13,124	3.55E-07	591.74	0.19
0.1 gm / 3.98 mm	1,312	3.55E-08	59.17	0.02
0.01 gm / 1.85 mm	131	3.55E-09	5.92	0.00
0.001 gm / 0.86 mm	13	3.55E-10	0.59	0.00

Weight of pure Thorosteenstrupine in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.02 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

Thorosteenstrupine Classification

Dana Class:

61.04.02.02 (61)Cyclosilicate Six-Membered Rings

(61.04)with other anions

(61.04.02)Steenstrupine group

61.04.02.01 Steenstrupine-(Ce) Na14Ce6MnMnFe2(Zr,Th)(Si6O18)2(PO4)7•3(H2O) R 3m 3 2/m

61.04.02.02 Thorosteenstrupine (Ca,Th,Mn)3Si4O11F•6(H2O) None

Strunz Class:

09.CK.20 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CK -[Si6O18]12- 6-membered single rings, with insular complex anions

09.CK.20 Thorosteenstrupine (Ca,Th,Mn)3Si4O11F•6(H2O) None

09.CK.20 Steenstrupine-(Ce) Na14Ce6MnMnFe2(Zr,Th)(Si6O18)2(PO4)7•3(H2O) R 3m 3 2/m

Other Thorosteenstrupine 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 Thorosteenstrupine :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Uranium Minerals

Search for Thorosteenstrupine using:

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

Visit our Advertisers for Thorosteenstrupine :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Thorosteenstrupine Mineral Data :

Ask about Thorosteenstrupine 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 Thorosteenstrupine Specimen Label here :

Thorosteenstrupine

(Ca,Th,Mn)3Si4O11F•6(H2O)
Dana No: 61.04.02.02 Strunz No: 09.CK.20
Locality:

Notes: