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Makarochkinite Mineral Data

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General Makarochkinite Information

Help on Chemical  Formula: Chemical Formula: Ca2Fe++4Fe+++TiSi4BeAlO20
Help on Composition: Composition: Molecular Weight = 871.54 gm
   Sodium      0.66 %  Na    0.89 % Na2O
   Calcium     7.54 %  Ca   10.55 % CaO
   Magnesium   0.70 %  Mg    1.16 % MgO
   Tantalum    0.15 %  Ta    0.18 % Ta2O5
   Titanium    3.35 %  Ti    5.59 % TiO2
   Manganese   0.82 %  Mn    1.06 % MnO
   Beryllium   0.94 %  Be    2.61 % BeO
   Niobium     0.41 %  Nb    0.58 % Nb2O5
   Aluminum    1.67 %  Al    3.16 % Al2O3
   Iron       32.62 %  Fe   29.92 % FeO / 13.38 % Fe2O3
   Silicon    14.44 %  Si   30.89 % SiO2
   Oxygen     36.72 %  O
             ______        ______ 
             100.00 %       99.96 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.64Na0.25Mn2+0.11Fe2+3.56Fe3+1.46Ti0.61Mg0.25Mn2+0.02Nb0.03Ta0.007Si4.48Be0.91 Al0.54Fe2+0.07O18O2
Help on Environment: Environment: Occurs in a granitic pegmatite near Lake Ishkul. Aenigmatite group. Ti analog of hogtuvaite.
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Ilmen Mountains (Southern Urals), Ilmen State Reserve, Chelyabinsk Oblast, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Boris A. Makarochkin (1907-1988), Russian chemist and mineralogist, who studied the rare minerals from the Ilmen Mountains and collected the mineral, but described it as a n amphibole
Help on Synonym: Synonym: ICSD 39333
  IMA2002-009a
  PDF 85-1123
 

Makarochkinite Image

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  Makarochkinite

Comments: Black grain of makarochkinite on matrix.
Location: Pit No. 400, Lake Ishkul', Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia. Scale: Specimen Size 0.5 cm x 0.5 cm.
© Carlo Guidarin

Makarochkinite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9631:1:0.8253
Help on Cell Dimensions: Cell Dimensions: a = 10.355, b = 10.751, c = 8.873, Z = 2; alpha = 105.707°, beta = 96.227°, gamma = 124.861° V = 775.66 Den(Calc)= 3.73
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.53(1)(213), 2.676(0.77)(203 ), 2.924(0.69)(013 ), 7.997(0.57)(100 ), 2.075(0.39)(411 ), 3.12(0.32)(012 ), 4.779(0.29)(011 ), 2.41(0.28)(223 ),
 

Physical Properties of Makarochkinite

Help on Cleavage: Cleavage: None
Help on Color: Color: Black.
Help on Density: Density: 3.93
Help on Diaphaneity: Diaphaneity: Subopaque
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Equant Grains - Granular material with equel dimensions in x, y, and z.
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Makarochkinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.072 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.072 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2111,KPDmeas= 0.2111,KC= 0.2275
Ncalc = 1.89
Help on Optical Data: Optical Data: Biaxial (?), a=1.799, g=1.86, bire=0.0610
 

Calculated Properties of Makarochkinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.81 gm/cc
note: Specific Gravity of Makarochkinite =3.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEMakarochkinite = 14.25 barns/electron
U=PEMakarochkinite x rElectron Density= 54.37 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Makarochkinite is Not Radioactive
 

Makarochkinite Classification

Help on  Dana Class: Dana Class: 69.02.01a.09 (69)Inosilicate Chains with Side Branches or Loops
  (69.02)with P>2
  (69.02.01a)Aenigmatite and related species (Aenigmatite subgroup)
 
69.02.01a.01 Aenigmatite (Na,Ca)4(Fe,Ti,Mg)12Si12O40 P1 1
 
69.02.01a.02 Dorrite Ca2Mg2Fe4(Al,Fe)4Si2O20 P1,P 1 Tri
 
69.02.01a.03 Hogtuvaite (Ca,Na)2(Fe,Fe,Ti,Mg,Mn)6(Si,Be,Al)6O20 P1 1
 
69.02.01a.04 Krinovite NaMg2CrSi3O10 P1 1
 
69.02.01a.05 Rhonite Ca2(Mg,Fe,Fe,Ti)6(Si,Al)6O20 P1 1
 
69.02.01a.06 Serendibite Ca2(Mg,Al)6(Si,Al,B)6O20 P1 1
 
69.02.01a.07 Welshite Ca4Mg9Sb3O4[Si6Be3AlFe2O36] P1 1
 
69.02.01a.08 Wilkinsonite Na2Fe4Fe2Si6O20 P1 1
 
69.02.01a.09 Makarochkinite! Ca2Fe4FeTiSi4BeAlO20 P1 1
Help on  Strunz Class: Strunz Class: 09.DH.45 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DH -Inosilicates with 4-periodic single chains, Si4O12
 
09.DH.45 Aenigmatite (Na,Ca)4(Fe,Ti,Mg)12Si12O40 P1 1
 
09.DH.45 Dorrite Ca2Mg2Fe4(Al,Fe)4Si2O20 P1,P 1 Tri
 
09.DH.45 Krinovite NaMg2CrSi3O10 P1 1
 
09.DH.45 Rhonite Ca2(Mg,Fe,Fe,Ti)6(Si,Al)6O20 P1 1
 
09.DH.45 Sapphirine (Mg,Al)8(Al,Si)6O20 P1 1
 
09.DH.45 Serendibite Ca2(Mg,Al)6(Si,Al,B)6O20 P1 1
 
09.DH.45 Khmaralite! (Mg,Al,Fe)16(Al,Si,Be)12O40 P 21/c 2/m
 
09.DH.45 Makarochkinite! Ca2Fe4FeTiSi4BeAlO20 P1 1
 
09.DH.45 Welshite Ca4Mg9Sb3O4[Si6Be3AlFe2O36] P1 1
 
09.DH.45 Wilkinsonite Na2Fe4Fe2Si6O20 P1 1
 

Other Makarochkinite Information

Help on References: References: NAME( AmMin, v90, p1402) PHYS. PROP.(AmMin, v90, p1402) OPTIC PROP.(AmMin, v90, p1402)
Help on See Also: See Also: Links to other databases for Makarochkinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - WWW-MINCRYST

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Makarochkinite

Ca2Fe++4Fe+++TiSi4BeAlO20
Dana No: 69.02.01a.09 Strunz No: 09.DH.45
Locality:

 

Notes:

 

 
   
 


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