Hingganite-(Ce) Mineral Data

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General Hingganite-(Ce) Information

Chemical Formula:

(Ce,Ca)2([ ],Fe)Be2Si2O8[(OH),O]2

Composition:

Molecular Weight = 460.63 gm

Calcium 5.22 % Ca 7.30 % CaO

Lanthanum 9.65 % La 11.32 % La₂O₃

Cerium 24.94 % Ce 29.22 % Ce₂O₃

Praeseodymium 1.84 % Pr 2.15 % Pr₂O₃

Samarium 0.33 % Sm 0.38 % Sm₂O₃

Gadolinium 0.07 % Gd 0.08 % Gd₂O₃

Dysprosium 0.04 % Dy 0.04 % Dy₂O₃

Yttrium 0.58 % Y 0.74 % Y₂O₃

Beryllium 3.95 % Be 10.97 % BeO

Iron 2.91 % Fe 3.74 % FeO

Silicon 12.32 % Si 26.35 % SiO₂

Hydrogen 0.33 % H 2.97 % H₂O

Neodymium 4.07 % Nd 4.75 % Nd₂O₃

Oxygen 33.76 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ce_0.82La_0.32Nd_0.13Pr_0.06Y_0.03Sm_0.01Gd_0.002Dy_0.001Ca_0.6Fe²⁺_0.24Be_2.02Si_2.02O_8.2(OH)_1.52

Environment:

Occurs in pegmatite as overgrowths on hingganite-(Y).

IMA Status:

Approved IMA 1987

Locality:

Tahara, Hirukawa-mura, Ena-gun, Gifu Prefecture, Japan Link to MinDat.org Location Data.

Name Origin:

Named for it's relationship to hingganite-(Y).

Name Pronunciation:

Hingganite-(Ce) + Pronunciation

Synonym:

ICSD 84023

IMA2004-004

PDF 40-1452

Hingganite-(Ce) Image

Images:

Hingganite-(Ce)

Comments: Group of hinnganite-(Ce) dipyramidal crystals, etched from calcite-filled cavity in epidote-quartz metasomatites is covered by yellow spherulitic hydromuscovite. Formed by replacement of rare metal alkalic granitic pegmatite.
Location: Western ore zone dumps, trench #2, Tsakhirin Khuduk Y-Zr-Nb deposit, Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia. Scale: Not Given.
© Pavel M. Kartashov

Hingganite-(Ce) Crystallography

Axial Ratios:

a:b:c =1.2974:1:0.6227

Cell Dimensions:

a = 9.8973, b = 7.6282, c = 4.7505, Z = 2; beta = 90.416° V = 358.65 Den(Calc)= 4.27

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

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

By Intensity(I/I_o): 2.85(1), 3.13(0.86), 2.56(0.46),6.06(0.42), 3.74(0.37), 3.44(0.34), 2.21(0.33), 1.976(0.3),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Lulu X M , Zhi-Zhong P , Geochemistry , 5 (1986) p.280-285, Crystal structure of xinganite, Locality: Daxinganling, China

Physical Properties of Hingganite-(Ce)

Cleavage:

None

Color:

Pale tan, Reddish brown.

Diaphaneity:

Transparent to Translucent

Hardness:

5-6 - Between Apatite and Orthoclase

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Hingganite-(Ce)

Gladstone-Dale:

CI calc= 0.045 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1756,KC= 0.1838
Ncalc = 1.79

Optical Data:

Biaxial (?), b=1.75

Calculated Properties of Hingganite-(Ce)

Electron Density:

Bulk Density (Electron Density)=3.95 gm/cc
note: Specific Gravity of Hingganite-(Ce) =4.27 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_{Hingganite-(Ce)}= 208.00 barns/electron
U=PE_{Hingganite-(Ce)} x r_electron= 821.42 barns/cc.

Radioactivity:

GRapi = 40,394.04 (Gamma Ray American Petroleum Institute Units)
Concentration of Hingganite-(Ce) per GRapi unit = 24.76 (PPM)

Hingganite-(Ce) 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) 753.00 ±188.25 grams of pure Hingganite-(Ce) .

**Estimated Radioactivity from Hingganite-(Ce)** - 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 / 7.65 cm	917,217	2.48E-05	40,394.04	13.28
100 gm / 3.55 cm	91,722	2.48E-06	4,039.40	1.33
10 gm / 1.65 cm	9,172	2.48E-07	403.94	0.13
1 gm / 7.65 mm	917	2.48E-08	40.39	0.01
0.1 gm / 3.55 mm	92	2.48E-09	4.04	0.00
0.01 gm / 1.65 mm	9	2.48E-10	0.40	0.00
0.001 gm / 0.76 mm	1	2.48E-11	0.04	0.00

Weight of pure Hingganite-(Ce) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.27 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 ( 2.05 % Th) From Sum REE Elements (40.93 % REE)

Hingganite-(Ce) Classification

Dana Class:

54.02.01a.02 (54)Nesosilicate Borosilicates and Some Beryllosilicates

(54.02)with B in [4] coordination

(54.02.01a)Datolite group (Datolite series)

54.02.01a.01 Datolite CaBSiO4(OH) P 2₁/c 2/m

54.02.01a.02 Hingganite-(Ce) (Ce,Ca)2([],Fe)Be2Si2O8[(OH),O]2 P 2₁/a 2/m

54.02.01a.03 Hingganite-(Y) Y2([])Be2Si2O8(OH)2 P 2₁/a 2/m

54.02.01a.04 Hingganite-(Yb) (Yb,Y)2([])Be2Si2O8(OH)2 P 2₁/a 2/m

54.02.01a.05 Calcybeborosilite-(Y)! (REE,Ca)2[](B,Be)2(SiO4)2(OH,O)2 P 2₁/a 2/m

Strunz Class:

09.AJ.20 09 - SILICATES (Germanates)

09.A - Nesosilicates

09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra,

09.AJ.20 Bakerite Ca4B4(BO4)(SiO4)3(OH)3•(H2O) P 2₁/c 2/m

09.AJ.20 Calcybeborosilite-(Y)! (REE,Ca)2[](B,Be)2(SiO4)2(OH,O)2 P 2₁/a 2/m

09.AJ.20 Calciogadolinite? CaREE(Fe)Be2Si2O10 P 2₁/a 2/m

09.AJ.20 Datolite CaBSiO4(OH) P 2₁/c 2/m

09.AJ.20 Hingganite-(Yb) (Yb,Y)2([])Be2Si2O8(OH)2 P 2₁/a 2/m

09.AJ.20 Homilite Ca2(Fe,Mg)B2Si2O10 P 2₁/a 2/m

09.AJ.20 Gadolinite-(Ce) (Ce,La,Nd,Y)2FeBe2Si2O10 P 2₁/c 2/m

09.AJ.20 Gadolinite-(Y) Y2FeBe2Si2O10 P 2₁/a 2/m

09.AJ.20 Hingganite-(Ce) (Ce,Ca)2([],Fe)Be2Si2O8[(OH),O]2 P 2₁/a 2/m

09.AJ.20 Hingganite-(Y) Y2([])Be2Si2O8(OH)2 P 2₁/a 2/m

09.AJ.20 Melanocerite-(Ce) (Ce,Th,Ca)5(Si,B)3O12(OH,F)•n(H2O)(?) Unk (HEX-R) Trig

09.AJ.20 Minasgeraisite-(Y) CaY2Be2Si2O10 P 2₁/a 2/m

Other Hingganite-(Ce) Information

References:

NAME( Dana8) PHYS. PROP.(Am.Min.,v75:432 and v93:1688) OPTIC PROP.(Am.Min.,Vol.75,p432,1990)

See Also:

Links to other databases for Hingganite-(Ce) :
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 (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Hingganite-(Ce)

(Ce,Ca)2([ ],Fe)Be2Si2O8[(OH),O]2
Dana No: 54.02.01a.02 Strunz No: 09.AJ.20
Locality:

Notes: