Calcioburbankite Mineral Data

General Calcioburbankite Information

Chemical Formula:

Na3(Ca,REE,Sr)3(CO3)5

Composition:

Molecular Weight = 597.04 gm

Sodium 11.55 % Na 15.57 % Na₂O

Strontium 4.40 % Sr 5.21 % SrO

Calcium 12.08 % Ca 16.91 % CaO

La,Ce,Pr,Nd,Sm, 21.71 % RE 25.32 % REE₂O₃

Carbon 10.06 % C 36.86 % CO₂

Oxygen 40.20 % O

______ ______

100.00 % 99.87 % = TOTAL OXIDE

Empirical Formula:

Na₃Ca_1.8REE_0.9Sr_0.3(CO₃)₅

Environment:

In a vent associated with ancylite-Ce and a vug inside a marble zenolith associated the carbonatite assemblage at Mont Saint-Hilaire.

IMA Status:

Approved IMA 1995

Locality:

Mont Saint-Hilaire, Rouville County, Quebec, Canada. Link to MinDat.org Location Data.

Name Origin:

For its relationship as the calcium-dominant analog of burbankite.

Name Pronunciation:

Calcioburbankite + Pronunciation

Synonym:

IMA1993-001

Calcioburbankite Image

Images:

Click Here for Larger Calcioburbankite Image

Calcioburbankite Aegirine

Comments: Tan crystal spray of calcioburbankite on dark green aegirine.
Location: Mont Saint Hilaire, Quebec, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Calcioburbankite Crystallography

Axial Ratios:

a:c = 1:0.60476

Cell Dimensions:

a = 10.447, c = 6.318, Z = 2; V = 597.16 Den(Calc)= 3.32

Crystal System:

Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 6₃mc

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

By Intensity(I/I_o): 2.601(1), 2.13(0.6), 3.01(0.5),

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

Belovitskaya Y V , Pekov I V , Gobechiya E R , Kabalov Y K , Subbotin V V , Crystallography Reports , 46 (2001) p.927-931, Crystal structure of calcioburbankite and the characteristic features of the, burbankite structure type, Locality: Vuoriyarvi, North Kareliya

Physical Properties of Calcioburbankite

Cleavage:

{100} Imperfect

Color:

Deep orange, Silky white, Pink. light.

Density:

3.45

Diaphaneity:

Translucent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

3-4 - Calcite-Fluorite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Calcioburbankite

Gladstone-Dale:

CI meas= -0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1908,KPDmeas= 0.1836,KC= 0.1834
Ncalc = 1.61 - 1.63

Optical Data:

Uniaxial (-), e=1.631, w=1.636, bire=0.0050.

Calculated Properties of Calcioburbankite

Electron Density:

Bulk Density (Electron Density)=3.30 gm/cc
note: Specific Gravity of Calcioburbankite =3.45 gm/cc.

Fermion Index:

Fermion Index = 0.04
Boson Index = 0.96

Photoelectric:

PE_{Calcioburbankite}= 135.40 barns/electron
U=PE_{Calcioburbankite} x r_electron= 446.43 barns/cc.

Radioactivity:

GRapi = 22,208.16 (Gamma Ray American Petroleum Institute Units)
Concentration of Calcioburbankite per GRapi unit = 45.03 (PPM)

Calcioburbankite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

**Estimated Radioactivity from Calcioburbankite** - 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 / 8.21 cm	487,983	1.32E-05	22,208.16	7.30
100 gm / 3.81 cm	48,798	1.32E-06	2,220.82	0.73
10 gm / 1.77 cm	4,880	1.32E-07	222.08	0.07
1 gm / 8.21 mm	488	1.32E-08	22.21	0.01
0.1 gm / 3.81 mm	49	1.32E-09	2.22	0.00
0.01 gm / 1.77 mm	5	1.32E-10	0.22	0.00
0.001 gm / 0.82 mm	0	1.32E-11	0.02	0.00

Weight of pure Calcioburbankite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.45 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 ( 1.09 % Th) From Sum REE Elements (21.71 % REE)

Calcioburbankite Classification

Dana Class:

14.04.04.03 (14)Anhydrous Carbonates

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

(14.04.04)Burbankite Group (Hexagonal)

14.04.04.01 Burbankite (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 P 6₃/mmc 6/m 2/m 2/m

14.04.04.02 Khanneshite (NaCa)3(Ba,Sr,Ce,Ca)3(CO3)5 P 6₃mc 6mm

14.04.04.03 Calcioburbankite Na3(Ca,REE,Sr)3(CO3)5 P 6₃mc 6mm

14.04.04.04 Sanromanite! Na2CaPb3(CO3)5 P 6₃mc 6mm

Strunz Class:

05.AC.30 05 - CARBONATES (NITRATES)

05.A - Carbonates without additional anions, without H2O

05.AC -Alkali and alkali-earth carbonates

05.AC.30 Burbankite (Na,Ca)3(Sr,Ba,Ce)3(CO3)5 P 6₃/mmc 6/m 2/m 2/m

05.AC.30 Calcioburbankite Na3(Ca,REE,Sr)3(CO3)5 P 6₃mc 6mm

05.AC.30 Khanneshite (NaCa)3(Ba,Sr,Ce,Ca)3(CO3)5 P 6₃mc 6mm

05.AC.30 Sanromanite! Na2CaPb3(CO3)5 P 6₃mc 6mm

Other Calcioburbankite Information

References:

NAME( MinRec) PHYS. PROP.(Am.Min v 81, p 1013, AmMin v 88, p 934) OPTIC PROP.(MinRec)

See Also:

Links to other databases for Calcioburbankite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
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

Search for Calcioburbankite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Calcioburbankite :

A Bijoux Google Search for Calcioburbankite
Adam's Minerals Google Search for Calcioburbankite
Cape Minerals Google Search for Calcioburbankite
Dakota Matrix Minerals Google Search for Calcioburbankite
Excalibur Mineral Corp. Google Search for Calcioburbankite
Exceptional Minerals Google Search for Calcioburbankite
John Betts Fine Minerals Search for Calcioburbankite
McDougall Minerals Google Search for Calcioburbankite
Mineral News Website Link
Rock and Mineral Shows Google Search for Calcioburbankite
Weinrich Minerals, Inc. Google Search for Calcioburbankite

Ask about Calcioburbankite 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 Calcioburbankite Specimen Label here :

Calcioburbankite

Na3(Ca,REE,Sr)3(CO3)5
Dana No: 14.04.04.03 Strunz No: 05.AC.30
Locality:

Notes: