Paratooite-(La) Mineral Data

General Paratooite-(La) Information

Chemical Formula:

REE3(Ca,Sr)2NaCu(CO3)8

Composition:

Molecular Weight = 2,146.77 gm

Sodium 2.54 % Na 3.42 % Na₂O

Strontium 2.78 % Sr 3.28 % SrO

Calcium 5.60 % Ca 7.84 % CaO

Lanthanum 23.42 % La 27.47 % La₂O₃

Praeseodymium 6.89 % Pr 8.07 % Pr₂O₃

Samarium 0.56 % Sm 0.65 % Sm₂O₃

Gadolinium 0.73 % Gd 0.84 % Gd₂O₃

Yttrium 0.58 % Y 0.74 % Y₂O₃

Copper 4.77 % Cu 5.97 % CuO

Carbon 9.06 % C 33.21 % CO₂

Neodymium 7.26 % Nd 8.46 % Nd₂O₃

Oxygen 35.56 % O

Fluorine 0.25 % F 0.25 % F

- % F -0.10 % -O=F₂

______ ______

100.00 % 100.09 % = TOTAL OXIDE

Empirical Formula:

La_3.62Ca₃Na_2.37Nd_1.08Pr_1.05Sr_0.68Y_0.14Gd_0.1Sm_0.08Cu_1.61C_16.2O_47.72F_0.28

Environment:

Hosted by the Auburn dolomite, a lenticular silty carbonaceous dolomite in the upper Burra group (Torrensian).

IMA Status:

Approved IMA 2005 (Dana # Added)

Locality:

Paratoo copper mine, near Yunta, Olary Province, South Australia, Australia Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Synonym:

IMA2005-020

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Paratooite-(La) Crystallography

Axial Ratios:

a:b:c =0.7874:1:0.5649

Cell Dimensions:

a = 10.0862, b = 12.8088, c = 7.236, Z = 1; V = 934.83 Den(Calc)= 3.81

Crystal System:

Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 222 or P 222₁

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

By Intensity(I/I_o): 2.94(1), 1.97(0.56), 5.04(0.53),2.53(0.52), 4.8(0.49), 3.96(0.43), 3.48(0.343),

Physical Properties of Paratooite-(La)

Cleavage:

{100} Fair

Color:

Pale blue.

Diaphaneity:

Transparent

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Habit:

Wheat Sheaf - Bundle shaped aggregates resembling wheat sheafs after hand reaping wheat.

Hardness:

4 - Fluorite

Luster:

Vitreous - Pearly

Streak:

pale blue

Optical Properties of Paratooite-(La)

Gladstone-Dale:

CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1796,KC= 0.1748
Ncalc = 1.67

Optical Data:

Biaxial (-), a=1.605, b=1.696, g=1.752, bire=0.1470

Calculated Properties of Paratooite-(La)

Electron Density:

Bulk Density (Electron Density)=3.51 gm/cc
note: Specific Gravity of Paratooite-(La) =3.81 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_{Paratooite-(La)}= 203.22 barns/electron
U=PE_{Paratooite-(La)} x r_electron= 714.10 barns/cc.

Radioactivity:

GRapi = 38,265.53 (Gamma Ray American Petroleum Institute Units)
Concentration of Paratooite-(La) per GRapi unit = 26.13 (PPM)

Paratooite-(La) 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) 794.88 ±198.72 grams of pure Paratooite-(La) .

**Estimated Radioactivity from Paratooite-(La)** - weak
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Becquerels (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.94 cm	871,268	2.35E-05	38,265.53	12.58
100 gm / 3.69 cm	87,127	2.35E-06	3,826.55	1.26
10 gm / 1.71 cm	8,713	2.35E-07	382.66	0.13
1 gm / 7.94 mm	871	2.35E-08	38.27	0.01
0.1 gm / 3.69 mm	87	2.35E-09	3.83	0.00
0.01 gm / 1.71 mm	9	2.35E-10	0.38	0.00
0.001 gm / 0.79 mm	1	2.35E-11	0.04	0.00

Weight of pure Paratooite-(La) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.81 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
Estimated Thorium Activity ( 1.94 % Th) From Sum REE Elements (38.86 % REE)

Paratooite-(La) Classification

Dana Class:

14.04.02.02 (14)Anhydrous Carbonates

(14.04)with Compound Formula A+2 B++2 (CO3)4

(14.04.02)Dana Group

14.04.02.01 Sahamalite-(Ce) (Mg,Fe)Ce2(CO3)4 P 2₁/a 2/m

14.04.02.02 Paratooite-(La)! REE3(Ca,Sr)2NaCu(CO3)8 P 222 or P 222₁ 2 2 2

Strunz Class:

05.AD.20 05 - CARBONATES (NITRATES)

05.A - Carbonates without additional anions, without H2O

05.AD -With rare-earth elements (REE)

05.AD.20 Paratooite-(La)! REE3(Ca,Sr)2NaCu(CO3)8 P 222 or P 222₁ 2 2 2

Other Paratooite-(La) Information

References:

NAME( AmMin, v91, p1455) PHYS. PROP.(AmMin, v91, p1455) OPTIC PROP.(AmMin, v91, p1455)

See Also:

Links to other databases for Paratooite-(La) :
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

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Print or Cut-and-Paste your Paratooite-(La) Specimen Label here :

Paratooite-(La)

REE3(Ca,Sr)2NaCu(CO3)8
Dana No: 14.04.02.02 Strunz No: 05.AD.20
Locality:

Notes: