Mineralogy Database

Kamphaugite-(Y) Mineral Data

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General Kamphaugite-(Y) Information

Help on Chemical  Formula: Chemical Formula: (Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65•2(H2O)
Help on Composition: Composition: Molecular Weight = 585.44 gm
   Calcium          12.60 %  Ca   17.62 % CaO
   La,Ce,Pr,Nd,Sm,  13.28 %  RE   15.50 % REE2O3
   Yttrium          22.17 %  Y    28.16 % Y2O3
   Hydrogen          0.97 %  H     8.69 % H2O
   Carbon            8.21 %  C    30.07 % CO2
   Oxygen           42.77 %  O
                   ______        ______ 
                   100.00 %      100.04 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.84Y1.46REE0.54(CO3)4(OH)1.65•2(H2O)
Help on Environment: Environment: Secondary mineral in REE-bearing granites or alteration product of kuliokite-(Y).
Help on IMA Status: IMA Status: Approved IMA 1993
Help on Locality: Locality: Hortekollen, Hoydalen, Oslo region, Norway Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Erling Kamphaug (1931-), Norwegian mineral collector.
Help on Name Pronunciation: Name Pronunciation: Kamphaugite-(Y) + Pronunciation Say KAMPHAUGITE-(Y)
Help on Synonym: Synonym: ICSD 66680
  IMA1987-043
  PDF 46-1399
 

Kamphaugite-(Y) Image

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  Kamphaugite-(Y)

Comments: Small white crystals of kamphaugite-(Y).
Location: Tørdal (Hjøndalen), Telemark, Norway. Scale: Picture size 3 mm.
© Thomas Witzke / Abraxas-Verlag

Kamphaugite-(Y) Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.93153
Help on Cell Dimensions: Cell Dimensions: a = 7.434, c = 21.793, Z = 4; V = 1,204.38 Den(Calc)= 3.23
Help on Crystal System: Crystal System: Tetragonal - Trapezohedral H-M Symbol (4 2 2) Space Group: P 41212
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.14(1), 4.381(0.8), 3.516(0.6),
 

Physical Properties of Kamphaugite-(Y)

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown, Colorless, White, Light yellow.
Help on Density: Density: 3.19
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Kamphaugite-(Y)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.021 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1997,KPDmeas= 0.2022,KC= 0.1981
Ncalc = 1.63 - 1.64
Help on Optical Data: Optical Data: Uniaxial (-), e=1.627, w=1.663, bire=0.0360.
 

Calculated Properties of Kamphaugite-(Y)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.11 gm/cc
note: Specific Gravity of Kamphaugite-(Y) =3.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEKamphaugite-(Y) = 107.03 barns/electron
U=PEKamphaugite-(Y) x relectron= 332.49 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 13,675.32 (Gamma Ray American Petroleum Institute Units)
Concentration of Kamphaugite-(Y) per GRapi unit = 73.12 (PPM)

Kamphaugite-(Y) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Radioactivity from Kamphaugite-(Y) - weak
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 / 8.39 cm 298,594 8.07E-06 13,675.32 4.50
100 gm / 3.90 cm 29,859 8.07E-07 1,367.53 0.45
10 gm / 1.81 cm 2,986 8.07E-08 136.75 0.04
1 gm / 8.39 mm 299 8.07E-09 13.68 0.00
0.1 gm / 3.90 mm 30 8.07E-10 1.37 0.00
0.01 gm / 1.81 mm 3 8.07E-11 0.14 0.00
0.001 gm / 0.84 mm 0 8.07E-12 0.01 0.00

Weight of pure Kamphaugite-(Y) in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.23 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 ( 0.66 % Th) From Sum REE Elements (13.28 % REE)
 

Kamphaugite-(Y) Classification

Help on  Dana Class: Dana Class: 16b.01.07.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.01)where (A)m (B)n (XO3)p Zq, with (m+n):p=1:1
  (16b.01.07)Dana Group
 
16b.01.07.01 Kamphaugite-(Y) (Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65•2(H2O) P 41212 4 2 2
Help on  Strunz Class: Strunz Class: 05.DC.10 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DC -With large cations
 
05.DC.10 Kamphaugite-(Y) (Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65•2(H2O) P 41212 4 2 2
 

Other Kamphaugite-(Y) Information

Help on References: References: NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)
Help on See Also: See Also: Links to other databases for Kamphaugite-(Y) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
13 - WWW-MINCRYST

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Print or Cut-and-Paste your Kamphaugite-(Y) Specimen Label here :

Kamphaugite-(Y)

(Ca1.84REEx)(Y1.46REE0.54-x)(CO3)4(OH)1.65•2(H2O)
Dana No: 16b.01.07.01 Strunz No: 05.DC.10
Locality:

 

Notes:

 

 
   
 


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