Potassic-magnesiohastingsite Mineral Data

General Potassic-magnesiohastingsite Information

Chemical Formula:

(K,Na)Ca2(Mg,Fe++,Fe+++,Al)5(Si,Al)8O22(OH,Cl)2

Composition:

Molecular Weight = 925.11 gm

Potassium 2.24 % K 2.70 % K₂O

Barium 0.15 % Ba 0.17 % BaO

Sodium 1.17 % Na 1.57 % Na₂O

Calcium 8.23 % Ca 11.52 % CaO

Magnesium 5.49 % Mg 9.11 % MgO

Titanium 0.98 % Ti 1.64 % TiO₂

Manganese 0.36 % Mn 0.46 % MnO

Aluminum 7.12 % Al 13.45 % Al₂O₃

Vanadium 0.06 % V 0.08 % V₂O₃

Iron 14.19 % Fe 10.48 % FeO / 8.63 % Fe₂O₃

Silicon 18.31 % Si 39.16 % SiO₂

Hydrogen 0.21 % H 1.88 % H₂O

Oxygen 41.51 % O

______ ______

100.00 % 100.85 % = TOTAL OXIDE

Empirical Formula:

K_0.53Na_0.47Ca_1.9Mn²⁺_0.06Mg_0.03Ba_0.01Mg_2.06Fe²⁺_1.35Fe³⁺Al_0.47Ti_0.19V³⁺_0.01Si_6.03 Al_1.97O₂₂(OH)_1.93O_0.07

Environment:

Magmatic phase in blocks of subalkaline biotite-amphibole gabbro that makes up part of the serpentinite melang. Amphibole group.

IMA Status:

Approved IMA 2005 (Dana # Added)

Locality:

Lake Bolshoi Ishkul, Ilmen Mountains, Ilmen Nature Reserve, South Urals, Russia. Link to MinDat.org Location Data.

Name Origin:

Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883).

Synonym:

IMA2004-027b

Potassic-magnesiohastingsite Image

Images:

Potassic-magnesiohastingsite

Comments: Black crystalline aggregate of potassic-magnesiohastingsite.
Location: Lake Bolshoy Ishkul, Ilmeny Mts, Chelyabinsk District, Russia. Scale: Specimen size: 12x5 mm.
© Sergey Vasiliev / Systematic Mineralogy

Potassic-magnesiohastingsite Crystallography

Axial Ratios:

a:b:c =0.552:1:0.2963

Cell Dimensions:

a = 9.958, b = 18.037, c = 5.346, Z = 2; beta = 105.498° V = 925.29 Den(Calc)= 3.32

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m

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

By Intensity(I/I_o): 8.48(1)(110), 2.714(0.52)(151), 3.284(0.4)(240),2.167(0.28)(261), 2.82(0.28)(330), 2.947(0.28)(221),

Physical Properties of Potassic-magnesiohastingsite

Cleavage:

{110} Distinct, {110} Distinct

Color:

Black.

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

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

Hardness:

6.5 - Pyrite

Luster:

Vitreous (Glassy)

Streak:

gray

Optical Properties of Potassic-magnesiohastingsite

Gladstone-Dale:

CI calc= 0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2087,KC= 0.221
Ncalc = 1.73

Optical Data:

Biaxial (-), a=1.682, b=1.695, g=1.702, bire=0.0200

Calculated Properties of Potassic-magnesiohastingsite

Electron Density:

Bulk Density (Electron Density)=3.27 gm/cc
note: Specific Gravity of Potassic-magnesiohastingsite =3.32 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Potassic-magnesiohastingsite}= 7.35 barns/electron
U=PE_{Potassic-magnesiohastingsite} x r_electron= 24.05 barns/cc.

Radioactivity:

GRapi = 31.87 (Gamma Ray American Petroleum Institute Units)
Concentration of Potassic-magnesiohastingsite per GRapi unit = 3.14 (%)

Estimated Radioactivity from Potassic-magnesiohastingsite - barely detectable

Potassic-magnesiohastingsite Classification

Dana Class:

66.01.03a.15c (66)Inosilicate Double-Width Unbranched Chains, W=2

(66.01)with P=2 amphibole configuration

(66.01.03a)Group 2, the calcic amphiboles

66.01.03a.01 Tremolite []Ca2Mg5Si8O22(OH)2 C 2/m 2/m

66.01.03a.02 Actinolite Ca2(Mg,Fe)5Si8O22(OH)2 C 2/m 2/m

66.01.03a.03 Ferro-actinolite []Ca2Fe5Si8O22(OH)2 C 2/m 2/m

66.01.03a.04 Magnesiohornblende Ca2[Mg4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m

66.01.03a.05 Ferrohornblende []Ca2[Fe4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m

66.01.03a.06 Tschermakite []Ca2(Mg3AlFe)Si6Al2O22(OH)2 C 2/m 2/m

66.01.03a.06a Aluminoferrotschermakite! []Ca2(Fe2)3Al2(Si6Al2)O22(OH)2 C 2/m 2/m

66.01.03a.06b Ferri-ferrotschermakite! []Ca2(Fe2)3(Fe3)2(Si6Al2)O22(OH)2 C 2/m 2/m

66.01.03a.06c Ferrotschermakite! []Ca2(Fe3AlFe)Si6Al2O22(OH) C 2/m 2/m

66.01.03a.07 Ferro-aluminotschermakite* Ca2Fe3Al2(Si7Al)O22(OH)2 C 2/m 2/m

66.01.03a.08 Ferritschermakite Ca2(Fe,Mg)3Al2(Si7Al)O22(OH)2 C 2/m 2/m

66.01.03a.09 Ferroferritschermakite* Ca2(Fe,Mg)3Fe2(Si7Al)O22(OH)2 C 2/m 2/m

66.01.03a.10 Edenite NaCa2Mg5Si7AlO22(OH)2 C 2/m 2/m

66.01.03a.10a Fluoro-edenite! NaCa2Mg5Si7AlO22(F,OH)2 C 2/m 2/m

66.01.03a.11 Ferro-edenite NaCa2Fe5Si7AlO22(OH)2 C 2/m 2/m

66.01.03a.12 Pargasite NaCa2(Mg,Fe)4Al(Si6Al2)O22(OH)2 C 2/m 2/m

66.01.03a.12a Potassicpargasite! (K,Na)Ca2(Mg,Fe)5Si8O22(OH,F)2 C 2/m 2/m

66.01.03a.13 Ferropargasite NaCa2(Fe4Al)Si6Al2O22(OH)2 C 2/m 2/m

66.01.03a.13a Ferrochloropargasite! NaCa2(Fe4Al)Si6Al2O22Cl2 C 2/m 2/m

66.01.03a.13b Potassic-chloropargasite! (K,Na)Ca2(Mg,Fe2)4Al(Si6Al2O22)(Cl,OH)2 C 2/m 2/m

66.01.03a.13c Potassic-ferropargasite KCa2(Fe4Al)Si6Al2O22(OH)2 C 2/m 2/m

66.01.03a.14 Magnesiohastingsite NaCa2(Mg4Fe)Si6Al2O22(OH)2 C 2/m 2/m

66.01.03a.15 Hastingsite NaCa2(Fe4Fe)Si6Al2O22(OH)2 C 2/m 2/m

66.01.03a.15a Potassic-chlorohastingsite! (K,Na)Ca2(Fe,Mg)4Fe[Si6Al2O22](Cl,OH)2 C 2/m 2/m

66.01.03a.15b Fluoro-magnesiohastingsite! (Na,K)Ca2(Mg,Fe,Ti)5(Si,Al)8O22F2 C 2/m 2/m

66.01.03a.15c Potassic-magnesiohastingsite! (K,Na)Ca2(Mg,Fe,Fe,Al)5(Si,Al)8O22(OH,Cl)2 C 2/m 2/m

66.01.03a.15d Chloro-potassichastingsite! KCa2(Fe3MgFe)(Si6Al2)S8O22Cl2 C 2/m 2/m

66.01.03a.15e Fluoro-potassichastingsite! KCa2(Fe2,Mg2,Fe)S5(Si6Al2)8O22F2 C 2/m 2/m

66.01.03a.16 Potassic-magnesiosadanagaite (K,Na)Ca2(Mg,Fe,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono

66.01.03a.17 Sadanagaite (K,Na)Ca2(Fe,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono

66.01.03a.17a Potassicsadanagaite! (K,Na)Ca2[Fe3(Al,Fe)2][Si5Al3O22](OH)2 C 2,Cm,C 2/m Mono

66.01.03a.17b Potassicferrisadanagaite! (K,Na)Ca2(Fe,Mg)2(Fe,Al)2[Si5Al3O22](OH,F,O)2 C 2/m 2/m

66.01.03a.17c Magnesiosadanagaite! NaCa2[Mg3(Al,Fe)2]Si5AlO22(OH)2 C 2/m 2/m

66.01.03a.18 Kaersutite NaCa2(Mg4Ti)Si6Al2O23(OH)2 C 2/m 2/m

66.01.03a.19 Ferrokaersutite NaCa2(Fe4Ti)Si6Al2O22(OH)2 C 2/m 2/m

66.01.03a.20 Fluorocannilloite! CaCa2(Mg4Al)Si5Al3O22F2 C 2/m 2/m

66.01.03a.20a Cannilloite! CaCa2Mg4Al(Si5Al3)O22(OH)2 C 2/m 2/m

Strunz Class:

09.DE.10 09 - SILICATES (Germanates)

09.D - Inosilicates* Structural terminology according to Liebau (1985)

09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family

09.DE.10 Ferritschermakite Ca2(Fe,Mg)3Al2(Si7Al)O22(OH)2 C 2/m 2/m

09.DE.10 Ferro-actinolite []Ca2Fe5Si8O22(OH)2 C 2/m 2/m

09.DE.10 Aluminoferrotschermakite! []Ca2(Fe2)3Al2(Si6Al2)O22(OH)2 C 2/m 2/m

09.DE.10 Edenite NaCa2Mg5Si7AlO22(OH)2 C 2/m 2/m

09.DE.10 Ferri-ferrotschermakite! []Ca2(Fe2)3(Fe3)2(Si6Al2)O22(OH)2 C 2/m 2/m

09.DE.10 Actinolite Ca2(Mg,Fe)5Si8O22(OH)2 C 2/m 2/m

09.DE.10 Cannilloite! CaCa2Mg4Al(Si5Al3)O22(OH)2 C 2/m 2/m

09.DE.10 Fluorocannilloite! CaCa2(Mg4Al)Si5Al3O22F2 C 2/m 2/m

09.DE.10 Ferrohornblende []Ca2[Fe4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m

09.DE.10 Ferrokaersutite NaCa2(Fe4Ti)Si6Al2O22(OH)2 C 2/m 2/m

09.DE.10 Ferro-edenite NaCa2Fe5Si7AlO22(OH)2 C 2/m 2/m

09.DE.10 Ferro-aluminotschermakite* Ca2Fe3Al2(Si7Al)O22(OH)2 C 2/m 2/m

09.DE.10 Potassic-magnesiosadanagaite (K,Na)Ca2(Mg,Fe,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono

09.DE.10 Fluoro-edenite! NaCa2Mg5Si7AlO22(F,OH)2 C 2/m 2/m

09.DE.10 Hastingsite NaCa2(Fe4Fe)Si6Al2O22(OH)2 C 2/m 2/m

09.DE.10 Ferrotschermakite! []Ca2(Fe3AlFe)Si6Al2O22(OH) C 2/m 2/m

09.DE.10 Ferroferritschermakite* Ca2(Fe,Mg)3Fe2(Si7Al)O22(OH)2 C 2/m 2/m

09.DE.10 Ferropargasite NaCa2(Fe4Al)Si6Al2O22(OH)2 C 2/m 2/m

09.DE.10 Joesmithite PbCa2(Mg,Fe,Fe)5Si6Be2O22(OH)2 P 2/a 2/m

09.DE.10 Kaersutite NaCa2(Mg4Ti)Si6Al2O23(OH)2 C 2/m 2/m

09.DE.10 Magnesiohastingsite NaCa2(Mg4Fe)Si6Al2O22(OH)2 C 2/m 2/m

09.DE.10 Magnesiohornblende Ca2[Mg4(Al,Fe)]Si7AlO22(OH)2 C 2/m 2/m

09.DE.10 Pargasite NaCa2(Mg,Fe)4Al(Si6Al2)O22(OH)2 C 2/m 2/m

09.DE.10 Potassicsadanagaite! (K,Na)Ca2[Fe3(Al,Fe)2][Si5Al3O22](OH)2 C 2,Cm,C 2/m Mono

09.DE.10 Potassicpargasite! (K,Na)Ca2(Mg,Fe)5Si8O22(OH,F)2 C 2/m 2/m

09.DE.10 Sadanagaite (K,Na)Ca2(Fe,Mg,Al,Ti)5[(Si,Al)8O22](OH)2 C 2,Cm,C 2/m Mono

09.DE.10 Tschermakite []Ca2(Mg3AlFe)Si6Al2O22(OH)2 C 2/m 2/m

09.DE.10 Tremolite []Ca2Mg5Si8O22(OH)2 C 2/m 2/m

09.DE.10 Fluoro-magnesiohastingsite! (Na,K)Ca2(Mg,Fe,Ti)5(Si,Al)8O22F2 C 2/m 2/m

09.DE.10 Parvo-manganotremolite! [](CaMn)2Mg5(Si7Al)O22(OH)2 C 2/m 2/m

09.DE.10 Fluoropargasite! NaCa2(Mg3FeAl)5(Si6Al2O22)F2 C 2/m 2/m

09.DE.10 Parvo-mangano-edenite! Na(CaMn)2Mg5(Si7Al)O22(OH)2 C 2/m 2/m

09.DE.10 Magnesiosadanagaite! NaCa2[Mg3(Al,Fe)2]Si5AlO22(OH)2 C 2/m 2/m

09.DE.10 Fluoro-potassichastingsite! KCa2(Fe2,Mg2,Fe)S5(Si6Al2)8O22F2 C 2/m 2/m

09.DE.10 Chloro-potassichastingsite! KCa2(Fe3MgFe)(Si6Al2)S8O22Cl2 C 2/m 2/m

09.DE.10 Potassic-magnesiohastingsite! (K,Na)Ca2(Mg,Fe,Fe,Al)5(Si,Al)8O22(OH,Cl)2 C 2/m 2/m

09.DE.10 Potassic-ferropargasite KCa2(Fe4Al)Si6Al2O22(OH)2 C 2/m 2/m

Other Potassic-magnesiohastingsite Information

References:

NAME( AmMin, v93:705) PHYS. PROP.(AmMin, v93:705) OPTIC PROP.(AmMin, v93:705)

See Also:

Links to other databases for Potassic-magnesiohastingsite :
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

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Potassic-magnesiohastingsite

(K,Na)Ca2(Mg,Fe++,Fe+++,Al)5(Si,Al)8O22(OH,Cl)2
Dana No: 66.01.03a.15c Strunz No: 09.DE.10
Locality:

Notes:

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