Mineralogy Database

Rabbittite Mineral Data

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General Rabbittite Information

Help on Chemical  Formula: Chemical Formula: Ca3Mg3(UO2)2(CO3)6(OH)4•18(H2O)
Help on Composition: Composition: Molecular Weight = 1,485.56 gm
   Calcium     8.09 %  Ca   11.32 % CaO
   Magnesium   4.91 %  Mg    8.14 % MgO
   Uranium    32.05 %  U    36.35 % UO2
   Hydrogen    2.71 %  H    24.25 % H2O
   Carbon      4.85 %  C    17.77 % CO2
   Oxygen     47.39 %  O
             ______        ______ 
             100.00 %       97.85 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3Mg3(UO2)2(CO3)6(OH)4•18(H2O)
Help on Environment: Environment: Mine wall efflorescence.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: Lucky Strick No. 2 mine, Emery County, Utah, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for John Charles Rabbitt (1907-1957), geologist with the U. S. Geological Survey.
Help on Name Pronunciation: Name Pronunciation: Rabbittite + Pronunciation Say RABBITTITE
 

Rabbittite Image

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  Rabbittite

Comments: Fine, yellow, acicular sprays of rabbittite to about 1mm on matrix.
Location: Hideout mine, San Juan Co., Utah, USA. Scale: 20x10x4mm.
© Tom Loomis / Dakota Matrix

Rabbittite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3697:1:0.397
Help on Cell Dimensions: Cell Dimensions: a = 32.6, b = 23.8, c = 9.45, Z = 8; beta = 90° V = 7,332.07 Den(Calc)= 2.69
Help on Crystal System: Crystal System: Monoclinic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.24(1), 4.37(0.8), 7.79(0.8),
 

Physical Properties of Rabbittite

Help on Cleavage: Cleavage: {001} Perfect, {???} Perfect, {???} Perfect
Help on Color: Color: Pale green, Greenish yellow.
Help on Density: Density: 2.57 - 2.6, Average = 2.58
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Fluorescent, Short UV=cream yellow.
Help on Luster: Luster: Silky
 

Optical Properties of Rabbittite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1902,KPDmeas= 0.1979,KC= 0.1964
Ncalc = 1.5 - 1.53
Help on Optical Data: Optical Data: Biaxial (+), a=1.502, b=1.508, g=1.525, bire=0.0230
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): colorless.
 

Calculated Properties of Rabbittite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.46 gm/cc
note: Specific Gravity of Rabbittite =2.59 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0080899329
Boson Index = 0.9919100671
Help on Photoelectric: Photoelectric: PERabbittite = 764.06 barns/electron
U=PERabbittite x relectron=1,882.61 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 2,603,598.06 (Gamma Ray American Petroleum Institute Units)
Concentration of Rabbittite per GRapi unit = 384.08 (PPB)

Rabbittite 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) 11.68 ± 2.92 grams of pure Rabbittite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 1168.3 ±292.06 grams of pure Rabbittite .

Estimated Radioactivity from Rabbittite - 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 / 9.04 cm 57,361,612 1.55E-03 2,603,598.06 855.98
100 gm / 4.20 cm 5,736,161 1.55E-04 260,359.81 85.60
10 gm / 1.95 cm 573,616 1.55E-05 26,035.98 8.56
1 gm / 9.04 mm 57,362 1.55E-06 2,603.60 0.86
0.1 gm / 4.20 mm 5,736 1.55E-07 260.36 0.09
0.01 gm / 1.95 mm 574 1.55E-08 26.04 0.01
0.001 gm / 0.90 mm 57 1.55E-09 2.60 0.00

Weight of pure Rabbittite in grams (gm) and Calculated Diameter of a Sphere with a Density of 2.59 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
 

Rabbittite Classification

Help on  Dana Class: Dana Class: 16b.07.03.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.07)Dana Type
  (16b.07.03)Dana Group
 
16b.07.03.01 Rabbittite Ca3Mg3(UO2)2(CO3)6(OH)4•18(H2O) Unk Mono
Help on  Strunz Class: Strunz Class: 05.ED.25 05 - CARBONATES (NITRATES)
  05.E - Uranyl Carbonates
  05.ED -UO2:CO3 = 1:3
 
05.ED.25 Rabbittite Ca3Mg3(UO2)2(CO3)6(OH)4•18(H2O) Unk Mono
 

Other Rabbittite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8;Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Rabbittite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Uranium Minerals

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

Rabbittite

Ca3Mg3(UO2)2(CO3)6(OH)4•18(H2O)
Dana No: 16b.07.03.01 Strunz No: 05.ED.25
Locality:

 

Notes:

 

 
   
 


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