Magnesiohastingsite Mineral Data

General Magnesiohastingsite Information
Help on Chemical Formula: Chemical Formula: NaCa2(Mg4Fe+++)Si6Al2O22(OH)2
Help on Composition: Composition: Molecular Weight = 864.69 gm
   Sodium      2.66 %  Na    3.58 % Na2O
   Calcium     9.27 %  Ca   12.97 % CaO
   Magnesium  11.24 %  Mg   18.64 % MgO
   Aluminum    6.24 %  Al   11.79 % Al2O3
   Iron        6.46 %  Fe    9.23 % Fe2O3
   Silicon    19.49 %  Si   41.69 % SiO2
   Hydrogen    0.23 %  H     2.08 % H2O
   Oxygen     44.41 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2Mg4Fe3+(Si6Al2O22)(OH)2
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1928
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 100674
  PDF 20-469
 

Magnesiohastingsite Image

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Magnesiohastingsite

Comments: Dark black-brown crystalline massive magnesiohastingsite.
Location: Afrikanda Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Magnesiohastingsite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5496:1:0.2939
Help on Cell Dimensions: Cell Dimensions: a = 9.91, b = 18.03, c = 5.3, Z = 2; beta = 103.95° V = 919.06 Den(Calc)= 3.12
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
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Walitzi E M , Walter F , Zeitschrift fur Kristallographie , 156 (1981) p.197-208, Verfeinerung der kristallstruktur eines basaltischen magnesio-hastingsites, Locality: Untertiefenbach, Austria

 

Physical Properties of Magnesiohastingsite

Help on Cleavage: Cleavage: [110] Good, [110] Perfect
Help on Color: Color: Green.
Help on Density: Density: 3.225
Help on Diaphaniety: Diaphaniety: Subopaque
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Magnesiohastingsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.044 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.216,KPDmeas= 0.2089,KC= 0.2186
Help on Optical Data: Optical Data: Biaxial (-), a=1.653-1.67, b=1.661-1.69, g=1.669-1.7, bire=0.0160-0.0300, 2V(Calc)=68-88, 2V(Meas)=60-90. Dispersion weak, r > v.
Help on Pleochroism (x): Pleochroism (x): dull yellow, greenish yellow, or deep brown.
Help on Pleochroism (y): Pleochroism (y): liver brown, yellowish brown, or straw yellow.
Help on Pleochroism (z): Pleochroism (z): greenish yellow, reddish brown, or yellow.
 

Calculated Properties of Magnesiohastingsite

Help on Electron Density: Electron Density:

relectron=3.10 gm/cc
note: rMagnesiohastingsite =3.12 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.02205
Boson Index = 0.97795
Help on Photoelectric: Photoelectric:

PEMagnesiohastingsite = 4.27 barns/electron
U=PEMagnesiohastingsite x relectron= 13.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Magnesiohastingsite is Not Radioactive
 

Magnesiohastingsite Classification
Help on Dana Class: Dana Class: 66.1.3a.14 (66)Inosilicate Double-Width Unbranched Chains, W=2
  (66.1)Dana Type
  (66.1.3a)Group 2, the calcic amphiboles
 
66.1.3a.1 Tremolite []Ca2Mg5Si8O22(OH)2 C 2/m 2/m
 
66.1.3a.2 Actinolite Ca2(Mg,Fe)5Si8O22(OH)2 C 2/m 2/m
 
66.1.3a.3 Ferro-actinolite []Ca2Fe5Si8O22(OH)2 C 2/m 2/m
 
66.1.3a.4 Magnesiohornblende Ca2[Mg4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m
 
66.1.3a.5 Ferrohornblende []Ca2[Fe4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m
 
66.1.3a.6 Tschermakite []Ca2(Mg3AlFe)Si6Al2O22(OH)2 C 2/m 2/m
 
66.1.3a.6a Aluminoferrotschermakite! []Ca2(Fe2)3Al2(Si6Al2)O22(OH)2 C 2/m 2/m
 
66.1.3a.6b Ferri-ferrotschermakite! []Ca2(Fe2)3(Fe3)2(Si6Al2)O22(OH)2 C 2/m 2/m
 
66.1.3a.6c Ferrotschermakite! []Ca2(Fe3AlFe)Si6Al2O22(OH) C 2/m 2/m
 
66.1.3a.7 Ferro-aluminotschermakite* Ca2Fe3Al2(Si7Al)O22(OH)2 C 2/m 2/m
 
66.1.3a.8 Ferritschermakite Ca2(Fe,Mg)3Al2(Si7Al)O22(OH)2 C 2/m 2/m
 
66.1.3a.9 Ferroferritschermakite* Ca2(Fe,Mg)3Fe2(Si7Al)O22(OH)2 C 2/m 2/m
 
66.1.3a.10 Edenite NaCa2Mg5Si7AlO22(OH)2 C 2/m 2/m
 
66.1.3a.10a Fluoro-edenite! NaCa2Mg5Si7AlO22(F,OH)2 C 2/m 2/m
 
66.1.3a.11 Ferro-edenite NaCa2Fe5Si7AlO22(OH)2 C 2/m 2/m
 
66.1.3a.12 Pargasite NaCa2(Mg,Fe)4Al(Si6Al2)O22(OH)2 C 2/m 2/m
 
66.1.3a.12a Potassicpargasite! (K,Na)Ca2(Mg,Fe)5Si8O22(OH,F)2 C 2/m 2/m
 
66.1.3a.13 Ferropargasite NaCa2(Fe4Al)Si6Al2O22(OH)2 C 2/m 2/m
 
66.1.3a.13a Ferrochloropargasite! NaCa2(Fe4Al)Si6Al2O22Cl2 C 2/m 2/m
 
66.1.3a.13b Potassic-chloropargasite! (K,Na)Ca2(Mg,Fe2)4Al(Si6Al2O22)(Cl,OH)2 C 2/m 2/m
 
66.1.3a.14 Magnesiohastingsite NaCa2(Mg4Fe)Si6Al2O22(OH)2 C 2/m 2/m
 
66.1.3a.15 Hastingsite NaCa2(Fe4Fe)Si6Al2O22(OH)2 C 2/m 2/m
 
66.1.3a.15a Potassic-chlorohastingsite! (K,Na)Ca2(Fe,Mg)4Fe[Si6Al2O22](Cl,OH)2 C 2/m 2/m
 
66.1.3a.16 Potassic-magnesiosadanagaite (K,Na)Ca2(Mg,Fe,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono
 
66.1.3a.17 Sadanagaite (K,Na)Ca2(Fe,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono
 
66.1.3a.17a Potassicsadanagaite! (K,Na)Ca2[Fe3(Al,Fe)2][Si5Al3O22](OH)2 C 2,Cm,C 2/m Mono
 
66.1.3a.17b Potassicferrisadanagaite! (K,Na)Ca2(Fe,Mg)2(Fe,Al)2[Si5Al3O22](OH,F,O)2 C 2/m 2/m
 
66.1.3a.17c Magnesiosadanagaite! NaCa2[Mg3(Al,Fe)2]Si5AlO22(OH)2 C 2/m 2/m
 
66.1.3a.18 Kaersutite NaCa2(Mg4Ti)Si6Al2O23(OH)2 C 2/m 2/m
 
66.1.3a.19 Ferrokaersutite NaCa2(Fe4Ti)Si6Al2O22(OH)2 C 2/m 2/m
 
66.1.3a.20 Fluorocannilloite! CaCa2(Mg4Al)Si5Al3O22F2 C 2/m 2/m
 
66.1.3a.20a Cannilloite! CaCa2Mg4Al(Si5Al3)O22(OH)2 C 2/m 2/m
 
66.1.3a.21 IMA2004-034! ([],Na)(Na,Ca)2(Mg,Fe)4Fe[Si8O22](OH)2 C 2/m 2/m
Help on Strunz Class: Strunz Class: VIII/F.10-130 VIII - Silicates
  VIII/F - Inosilicates (chain and band) double chains [Si4O11]6- , Ca2-Amphiboles
  VIII/F.10 - Amphibole group, Tremolite - Sadanagaite series
 
VIII/F.10-10 Tremolite []Ca2Mg5Si8O22(OH)2 C 2/m 2/m
 
VIII/F.10-20 Actinolite Ca2(Mg,Fe)5Si8O22(OH)2 C 2/m 2/m
 
VIII/F.10-30 Ferro-actinolite []Ca2Fe5Si8O22(OH)2 C 2/m 2/m
 
VIII/F.10-40 Magnesiohornblende Ca2[Mg4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m
 
VIII/F.10-50 Ferrohornblende []Ca2[Fe4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m
 
VIII/F.10-60 Tschermakite []Ca2(Mg3AlFe)Si6Al2O22(OH)2 C 2/m 2/m
 
VIII/F.10-65 Aluminoferrotschermakite! []Ca2(Fe2)3Al2(Si6Al2)O22(OH)2 C 2/m 2/m
 
VIII/F.10-70 Ferrotschermakite! []Ca2(Fe3AlFe)Si6Al2O22(OH) C 2/m 2/m
 
VIII/F.10-75 Ferro-aluminotschermakite* Ca2Fe3Al2(Si7Al)O22(OH)2 C 2/m 2/m
 
VIII/F.10-77 Ferritschermakite Ca2(Fe,Mg)3Al2(Si7Al)O22(OH)2 C 2/m 2/m
 
VIII/F.10-80* Ferri-ferrotschermakite! []Ca2(Fe2)3(Fe3)2(Si6Al2)O22(OH)2 C 2/m 2/m
 
VIII/F.10-80 Ferroferritschermakite* Ca2(Fe,Mg)3Fe2(Si7Al)O22(OH)2 C 2/m 2/m
 
VIII/F.10-90 Edenite NaCa2Mg5Si7AlO22(OH)2 C 2/m 2/m
 
VIII/F.10-92 Fluoro-edenite! NaCa2Mg5Si7AlO22(F,OH)2 C 2/m 2/m
 
VIII/F.10-100 Ferro-edenite NaCa2Fe5Si7AlO22(OH)2 C 2/m 2/m
 
VIII/F.10-104 Cannilloite! CaCa2Mg4Al(Si5Al3)O22(OH)2 C 2/m 2/m
 
VIII/F.10-105 Fluorocannilloite! CaCa2(Mg4Al)Si5Al3O22F2 C 2/m 2/m
 
VIII/F.10-110 Pargasite NaCa2(Mg,Fe)4Al(Si6Al2)O22(OH)2 C 2/m 2/m
 
VIII/F.10-120 Ferropargasite NaCa2(Fe4Al)Si6Al2O22(OH)2 C 2/m 2/m
 
VIII/F.10-125 Potassicpargasite! (K,Na)Ca2(Mg,Fe)5Si8O22(OH,F)2 C 2/m 2/m
 
VIII/F.10-130 Magnesiohastingsite NaCa2(Mg4Fe)Si6Al2O22(OH)2 C 2/m 2/m
 
VIII/F.10-140 Hastingsite NaCa2(Fe4Fe)Si6Al2O22(OH)2 C 2/m 2/m
 
VIII/F.10-150 Kaersutite NaCa2(Mg4Ti)Si6Al2O23(OH)2 C 2/m 2/m
 
VIII/F.10-160 Ferrokaersutite NaCa2(Fe4Ti)Si6Al2O22(OH)2 C 2/m 2/m
 
VIII/F.10-163 Potassicsadanagaite! (K,Na)Ca2[Fe3(Al,Fe)2][Si5Al3O22](OH)2 C 2,Cm,C 2/m Mono
 
VIII/F.10-165 Potassic-magnesiosadanagaite (K,Na)Ca2(Mg,Fe,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono
 
VIII/F.10-170 Magnesiosadanagaite! NaCa2[Mg3(Al,Fe)2]Si5AlO22(OH)2 C 2/m 2/m
 
VIII/F.10-180 Sadanagaite (K,Na)Ca2(Fe,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono
 
VIII/F.10-220 Potassicferrisadanagaite! (K,Na)Ca2(Fe,Mg)2(Fe,Al)2[Si5Al3O22](OH,F,O)2 C 2/m 2/m
 

Other Magnesiohastingsite Information
Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65)
Help on See Also: See Also: Links to other databases for Magnesiohastingsite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Magnesiohastingsite

NaCa2(Mg4Fe+++)Si6Al2O22(OH)2
Dana No: 66.1.3a.14 Strunz No: VIII/F.10-130
Locality:

 

Notes:

 
 
   
 
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