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Varulite Mineral Data

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General Varulite Information

Help on Chemical  Formula: Chemical Formula: NaCaMn(Mn,Fe++,Fe+++)2(PO4)3
Help on Composition: Composition: Molecular Weight = 513.48 gm
   Sodium       4.48 %  Na    6.04 % Na2O
   Calcium      7.81 %  Ca   10.92 % CaO
   Manganese   24.07 %  Mn   31.08 % MnO
   Iron         8.16 %  Fe    7.00 % FeO /  3.89 % Fe2O3
   Phosphorus  18.10 %  P    41.47 % P2O5
   Oxygen      37.39 %  O
              ______        ______ 
              100.00 %      100.39 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCaMn2+2.25Fe2+0.5Fe3+0.25(PO4)3
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1937
Help on Locality: Locality: Verutrask pegmatite, Boliden mine, Skelleftea, Vasterbottea, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Varulite Say VARULITE
 

Varulite Image

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  Varulite

Comments: Dark brown to dark green varulite in white feldspar.
Location: Varutrask, Vasterbotten, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Varulite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9497:1:0.5151
Help on Cell Dimensions: Cell Dimensions: a = 11.91, b = 12.54, c = 6.46, Z = 4; beta = 114.98° V = 874.56 Den(Calc)= 3.90
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.74(1), 2.56(0.4), 3.4(0.4),
 

Physical Properties of Varulite

Help on Cleavage: Cleavage: {100} Good, {010} Distinct
Help on Color: Color: Yellow green, Olive green.
Help on Density: Density: 3.581
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: greenish white
 

Optical Properties of Varulite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.069 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1833,KPDmeas= 0.1997,KC= 0.1969
Ncalc = 1.71 - 1.77
Help on Optical Data: Optical Data: Biaxial (+), a=1.708, g=1.722, bire=0.0140, 2V(Meas)=70. Dispersion r > v.
Help on Pleochroism (x): Pleochroism (x): yellow green.
Help on Pleochroism (z): Pleochroism (z): grass green.
 

Calculated Properties of Varulite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.46 gm/cc
note: Specific Gravity of Varulite =3.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0020141656
Boson Index = 0.9979858344
Help on Photoelectric: Photoelectric: PEVarulite = 10.55 barns/electron
U=PEVarulite x rElectron Density= 36.45 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Varulite is Not Radioactive
 

Varulite Classification

Help on  Dana Class: Dana Class: 38.02.03.03 (38)Anhydrous Phosphates, etc
  (38.02)(A+ B++)5 (XO4)3
  (38.02.03)Alluaudite-Wyllieite Group (Alluaudite Subgroup)
 
38.02.03.01 Ferrohagendorfite* (Na,Ca)2Fe(Fe,Fe)2(PO4)3 I 21/a 2/m
 
38.02.03.02 Hagendorfite NaCaMn(Fe,Fe,Mg)2(PO4)3 I 21/a 2/m
 
38.02.03.03 Varulite NaCaMn(Mn,Fe,Fe)2(PO4)3 C 2/c 2/m
 
38.02.03.04 Maghagendorfite NaMgMn(Fe,Fe)2(PO4)3 I 21/a 2/m
 
38.02.03.05 Ferroalluaudite NaCaFe(Fe,Mn,Fe,Mg)2(PO4)3 C 2/a 2/m
 
38.02.03.06 Alluaudite NaCaFe(Mn,Fe,Fe,Mg)2(PO4)3 C 2/c 2/m
 
38.02.03.07 Odanielite Na(Zn,Mg)3H2(AsO4)3 C 2/c 2/m
 
38.02.03.08 Johillerite Na(Mg,Zn)3Cu(AsO4)3 I2/c 2/m
 
38.02.03.09 Nickenichite Na0,8Ca0,4(Mg,Fe,Al)3Cu0,4(AsO4)3 C 2/c 2/m
 
38.02.03.10 Yazganite! NaFe2(Mg,Mn)(AsO4)3•H2O C 2/c 2/m
 
38.02.03.11 IMA2008-054! NaCaMn2(PO4)[PO3(OH)]2 C 2/c 2/m
 
38.02.03.12 IMA2008-064! Na16Mn25Al8(PO4)30 Pc m
Help on  Strunz Class: Strunz Class: 08.AC.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AC -With medium-sized and large cations
 
08.AC.10 Alluaudite NaCaFe(Mn,Fe,Fe,Mg)2(PO4)3 C 2/c 2/m
 
08.AC.10 Arseniopleite (Ca,Na)(Na,Pb)Mn(Mn,Mg,Fe)2(AsO4)3 I2/a 2/m
 
08.AC.10 Ferrohagendorfite* (Na,Ca)2Fe(Fe,Fe)2(PO4)3 I 21/a 2/m
 
08.AC.10 Caryinite (Na,Pb)(Ca,Na)(Ca,Mn)(Mn,Mg)2(AsO4)3 I2/c 2/m
 
08.AC.10 Hagendorfite NaCaMn(Fe,Fe,Mg)2(PO4)3 I 21/a 2/m
 
08.AC.10 Johillerite Na(Mg,Zn)3Cu(AsO4)3 I2/c 2/m
 
08.AC.10 Ferroalluaudite NaCaFe(Fe,Mn,Fe,Mg)2(PO4)3 C 2/a 2/m
 
08.AC.10 Odanielite Na(Zn,Mg)3H2(AsO4)3 C 2/c 2/m
 
08.AC.10 Maghagendorfite NaMgMn(Fe,Fe)2(PO4)3 I 21/a 2/m
 
08.AC.10 Nickenichite Na0,8Ca0,4(Mg,Fe,Al)3Cu0,4(AsO4)3 C 2/c 2/m
 
08.AC.10 Varulite NaCaMn(Mn,Fe,Fe)2(PO4)3 C 2/c 2/m
 
08.AC.10 Bradaczekite! NaCu4(AsO4)3 C 2/c 2/m
 
08.AC.10 Yazganite! NaFe2(Mg,Mn)(AsO4)3•H2O C 2/c 2/m
 
08.AC.10 IMA2008-054! NaCaMn2(PO4)[PO3(OH)]2 C 2/c 2/m
 

Other Varulite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Varulite :
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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Print or Cut-and-Paste your Varulite Specimen Label here :

Varulite

NaCaMn(Mn,Fe++,Fe+++)2(PO4)3
Dana No: 38.02.03.03 Strunz No: 08.AC.10
Locality:

 

Notes:

 

 
   
 


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