Mineralogy Database

Barytocalcite Mineral Data

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General Barytocalcite Information

Help on Chemical  Formula: Chemical Formula: BaCa(CO3)2
Help on Composition: Composition: Molecular Weight = 297.42 gm
   Barium   46.17 %  Ba   51.55 % BaO
   Calcium  13.48 %  Ca   18.85 % CaO
   Carbon    8.08 %  C    29.59 % CO2
   Oxygen   32.28 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaCa(CO3)2
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1824
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from its chemical composition.
Help on Name Pronunciation: Name Pronunciation: Barytocalcite + Pronunciation Say BARYTOCALCITE
Help on Synonym: Synonym: ICSD 36201
  PDF 15-285

Barytocalcite Image

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Comments: Pale pink crystalline barytocalcite in dark matrix.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: White prismatic barytocalcite crystals to 6mm. Former Eaton Collection.
Location: Alston Moor, Cumberland, England. Scale: 3x2x2cm.
© Tom Loomis / Dakota Matrix

Barytocalcite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.5555:1:1.252
Help on Cell Dimensions: Cell Dimensions: a = 8.134, b = 5.229, c = 6.547, Z = 2; beta = 73.867° V = 267.50 Den(Calc)= 3.69
Help on Crystal System: Crystal System: Monoclinic - Sphenoidal H-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.125(1), 3.14(0.9), 4.018(0.4),

Physical Properties of Barytocalcite

Help on Cleavage: Cleavage: {110} Perfect, {101} Perfect, {001} Distinct
Help on Color: Color: White, Yellow, Gray, Greenish gray.
Help on Density: Density: 3.64 - 3.66, Average = 3.65
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 4 - Fluorite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: white

Optical Properties of Barytocalcite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.019 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1712,KPDmeas= 0.1731,KC= 0.168
Ncalc = 1.61 - 1.62
Help on Optical Data: Optical Data: Biaxial (-), a=1.525, b=1.684, g=1.686, bire=0.1610, 2V(Calc)=10, 2V(Meas)=15. Dispersion relatively weak.

Calculated Properties of Barytocalcite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.37 gm/cc
note: Specific Gravity of Barytocalcite =3.69 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEBarytocalcite = 204.28 barns/electron
U=PEBarytocalcite x rElectron Density= 689.36 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Barytocalcite is Not Radioactive

Barytocalcite Classification

Help on  Dana Class: Dana Class: (14)Anhydrous Carbonates
  (14.02)with Compound Formula A+ B++ (CO3)2
  (14.02.06)Dana Group Barytocalcite BaCa(CO3)2 P 21 2
Help on  Strunz Class: Strunz Class: 05.AB.45 05 - CARBONATES (NITRATES)
  05.A - Carbonates without additional anions, without H2O
  05.AB -Alkali-earth (and other M2+) carbonates
05.AB.45 Barytocalcite BaCa(CO3)2 P 21 2

Other Barytocalcite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Barytocalcite :
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

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Dana No: Strunz No: 05.AB.45





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