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Potassic-fluoro-hastingsite

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About Potassic-fluoro-hastingsiteHide

Formula:
KCa2(Fe2+4Fe3+)(Si6Al2)O22F2
Colour:
Dark greenish black
Lustre:
Vitreous, Sub-Vitreous
Hardness:
6
Specific Gravity:
3.289
Crystal System:
Monoclinic
Name:
Named in 2009 by Marian V. Lupulescu, John Rakovan, M. Darby Dyer, George W. Robinson, and John M. Hughes for its chemical relationship to hastingsite.
The name fluoro-potassichastingsite has also been used for this mineral. The 2012 amphibole nomenclature follow the principle that the various prefixes to the root name are listed in order it occurs in the formula. The approved name for this mineral is consequently potassic-fluoro-hastingsite.

The hastingsite-group minerals are defined with 0,5 < A(Na+K+2Ca)<1.5 where Na or K is dominant and with the C position occupied by Mg or Fe2+ as dominant divalent ions and 0,5 < C(Al+Fe3+ +Cr+2Ti) < 1.5 where Fe3+ is dominant. W may contain (OH),F or Cl.

Fluoro-potassichastingsite is defined with:

A position: K dominant
C position: Fe dominant divalent ion
W position: F dominant


Classification of Potassic-fluoro-hastingsiteHide

Approved
Approval year:
2005
8/F.10-145
9.DE.15

9 : SILICATES (Germanates)
D : Inosilicates
E : Inosilicates with 2-periodic double chains, Si4O11; Clinoamphiboles

Physical Properties of Potassic-fluoro-hastingsiteHide

Vitreous, Sub-Vitreous
Transparency:
Translucent
Colour:
Dark greenish black
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
{110}
Fracture:
Conchoidal, Sub-Conchoidal
Density:
3.289 g/cm3 (Measured)    3.37 g/cm3 (Calculated)

Optical Data of Potassic-fluoro-hastingsiteHide

Type:
Biaxial (-)
RI values:
nα = 1.668 nβ = 1.688 nγ = 1.698
2V:
Measured: 40° to 70°, Calculated: 70°
Birefringence:
0.030
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r
Optical Extinction:
Y=b, Z^c = 23°
Pleochroism:
Strong
Comments:
X Bluish green Y Green to Brownish green Z = Blue to Light Blue

Chemical Properties of Potassic-fluoro-hastingsiteHide

Formula:
KCa2(Fe2+4Fe3+)(Si6Al2)O22F2
Common Impurities:
Na,Mg,Cl

Crystallography of Potassic-fluoro-hastingsiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 9.948 Å, b = 18.1777 Å, c = 5.3302 Å
β = 105.14°
Ratio:
a:b:c = 0.547 : 1 : 0.293
Unit Cell V:
930.41 ų (Calculated from Unit Cell)
Z:
2

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006296Potassic-fluoro-hastingsiteLupulescu M V, Rakovan J, Dyar M D, Robinson G W, Hughes J M (2009) Fluoro-potassichastingsite from the Greenwood mine, Orange County, New York: A new end-member calcic amphibole The Canadian Mineralogist 47 909-9162009the Greenwood mine, Orange County, New York, USA0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.499 Å(100)
3.401 Å(11)
3.299 Å(32)
3.151 Å(76)
2.830 Å(53)
2.722 Å(23)
2.402 Å(17)
1.661 Å(10)

Type Occurrence of Potassic-fluoro-hastingsiteHide

General Appearance of Type Material:
Greenish black intergrown grains and laths.
Geological Setting of Type Material:
A magnetite-rich iron ore deposit hosted by Proterozoic metamorphic rocks
Associated Minerals at Type Locality:

Synonyms of Potassic-fluoro-hastingsiteHide

Other Language Names for Potassic-fluoro-hastingsiteHide

Relationship of Potassic-fluoro-hastingsite to other SpeciesHide

Other Members of this group:
Fluoro-hastingsiteNaCa2(Fe2+4Fe3+)(Al2Si6O22)F2
HastingsiteNaCa2(Fe2+4Fe3+)(Si6Al2)O22OH2Mon.
Magnesio-fluoro-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22F2Mon. 2/m : B2/m
Magnesio-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon.
Potassic-chloro-hastingsiteKCa2(Fe2+4Fe3+)(Si6Al2)O22Cl2Mon. 2/m : B2/m
Potassic-hastingsiteKCa2(Fe2+4Fe3+)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
Potassic-magnesio-hastingsiteKCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m

Related Minerals - Nickel-Strunz GroupingHide

9.DE.Clino-suenoite◻{Mn2+2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.05Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2Mon.
9.DE.05Clino-holmquistite Root Name Group◻{Li2}{Z2+3Z3+2}(Si8O22)(OH,F,Cl)2Mon.
9.DE.05Grunerite◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.05Permanganogrunerite◻{Mn2+2}{Mn2+5}(Si8O22)(OH)2Mon.
9.DE.05Ferri-fluoro-leakeite{Na}{Na2}{Mg2Fe3+2Li}(Si8O22)F2Mon. 2/m : B2/m
9.DE.10Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22OH2Mon. 2/m : B2/m
9.DE.10Ferri-tschermakite◻{Ca2}{Mg3Fe3+2}(Al2Si6O22)(OH)2Mon.
9.DE.10Ferro-actinolite◻Ca2Fe2+5(Si8O22)OH2Mon.
9.DE.10Ferro-hornblende◻Ca2(Fe2+4Al)(Si7Al)O22(OH)2Mon.
9.DE.10Ferro-tschermakite◻{Ca2}{Fe2+3Al2}(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.10JoesmithitePb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2Mon.
9.DE.10Magnesio-hornblende◻Ca2(Mg4Al)(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.10Tremolite◻{Ca2}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.10CannilloiteCaCa2(Mg4Al)(Si5Al3O22)OH2Mon.
9.DE.10Fluoro-cannilloiteCaCa2(Mg4Al)(Si5Al3)O22F2Mon.
9.DE.10Parvo-manganotremolite◻{CaMn2+}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.10Fluoro-tremolite◻{Ca2}{Mg5}(Si8O22)F2Mon. 2/m : B2/m
9.DE.10Ferro-ferri-hornblende◻Ca2(Fe2+4Fe3+)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.15EdeniteNaCa2Mg5(Si7Al)O22OH2Mon.
9.DE.15Ferro-edeniteNaCa2Fe2+5(Si7Al)O22OH2Mon.
9.DE.15Ferro-kaersutiteNaCa2{Fe2+3AlTi}(Si6Al2O22)O2Mon.
9.DE.15Ferro-pargasiteNaCa2(Fe2+4Al)(Si6Al2)O22(OH)2Mon.
9.DE.15HastingsiteNaCa2(Fe2+4Fe3+)(Si6Al2)O22OH2Mon.
9.DE.15KaersutiteNaCa2(Mg3AlTi4+)(Si6Al2)O22O2Mon.
9.DE.15Magnesio-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon.
9.DE.15PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Sadanagaite{Na}{Ca2}{Mg3Al2}(Si5Al3O22)(OH)2Mon.
9.DE.15Fluoro-edeniteNaCa2Mg5(Si7Al)O22F2Mon. 2/m : P2/m
9.DE.15Potassic-ferro-ferri-sadanagaite{K}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2Mon.
9.DE.15Potassic-sadanagaite{K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2Mon.
9.DE.15Potassic-pargasiteKCa2(Mg4Al)(Si6Al2)O22(OH)2Mon.
9.DE.15Potassic-ferro-sadanagaite{K}{Ca2}{Fe2+3Al2}(Al3Si5O22)(OH)2Mon.
9.DE.15Magnesio-fluoro-hastingsiteNaCa2(Mg4Fe3+)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Potassic-chloro-hastingsiteKCa2(Fe2+4Fe3+)(Si6Al2)O22Cl2Mon. 2/m : B2/m
9.DE.15Fluoro-pargasiteNaCa2(Mg4Al)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Parvo-mangano-edenite{Na}{CaMn2+}{Mg5}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-chloro-pargasiteKCa2(Mg4Al)(Si6Al2)O22Cl2Mon. 2/m : B2/m
9.DE.15Potassic-ferro-chloro-edeniteKCa2Fe2+5(AlSi7O22)Cl2
9.DE.15Potassic-magnesio-hastingsiteKCa2(Mg4Fe3+)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-ferro-pargasiteKCa2(Fe2+4Al)(Si6Al2)O22(OH)2Mon. 2/m : B2/m
9.DE.15Chromio-pargasite{Na}{Ca2}{Mg4Cr3+}(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.15Potassic-fluoro-pargasiteKCa2(Mg4Al)(Si6Al2)O22F2Mon. 2/m : B2/m
9.DE.15Ferri-kaersutiteNaCa2(Mg3Fe3+Ti)(Si6Al2O22)O2Mon. 2/m : B2/m
9.DE.15Vanadio-pargasiteNaCa2(Mg3+4V)(Al2Si6)O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-taramiteNa(CaNa)(Fe2+3Al2)(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20Barroisite◻{CaNa}{Mg3Al2}(AlSi7O22)(OH)2Mon.
9.DE.20Ferro-ferri-barroisite◻(CaNa)(Fe2+3Fe3+2)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-winchite◻[CaNa][Fe2+4(Fe3+,Al)]Si8O22(OH)2
9.DE.20Ferri-barroisite◻(CaNa)(Mg3Fe3+2)(AlSi7O22)(OH)2
9.DE.20Ferro-ferri-taramiteNa(CaNa)(Fe2+3Fe3+2)(Al2Si6O22)(OH)2
9.DE.20Ferro-ferri-katophoriteNa(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-barroisite◻{CaNa}{Fe2+3Al2}(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.20Ferro-richterite{Na}{CaNa}{Fe2+5}(Si8O22)(OH)2Mon.
9.DE.20Ferro-winchite ◻{CaNa}{Fe2+4Al}(Si8O22)(OH)2Mon.
9.DE.20Ferro-katophorite{Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
9.DE.20Ferri-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)(OH)2Mon.
9.DE.20Ferri-taramiteNa(CaNa)(Mg3Fe3+2)(Al2Si6O22)(OH)2Mon.
9.DE.20Magnesiotaramite{Na}{CaNa}{Mg3AlFe3+}(Al2Si6O22)(OH)2Mon.
9.DE.20Richterite{Na}{NaCa}{Mg5}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.20Winchite◻{CaNa}{Mg4Al}(Si8O22)(OH)2Mon. 2/m
9.DE.20Taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-richterite{Na}{CaNa}{Mg5}(Si8O22)(F,OH)2Mon. 2/m
9.DE.20Katophorite{Na}{CaNa}{Mg4Al}[(AlSi7)O22](OH)2Mon. 2/m : B2/m
9.DE.20Potassic-fluoro-richterite{K}{CaNa}{Mg5}(Si8O22)(F,OH)2Mon.
9.DE.20Potassic-richterite{K}{CaNa}{Mg5}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Ferri-ghoseite◻[Mn2+Na][Mg4Fe3+]Si8O22(OH)2Mon. 2/m
9.DE.20Ferri-winchite◻(NaCa)(Mg4Fe3+)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.20Fluoro-taramite{Na}{CaNa}{Mg3Al2}(Al2Si6O22)F2Mon. 2/m : B2/m
9.DE.20Fluoro-katophoriteNa(CaNa)(Mg4Al)(AlSi7O22)F2Mon.
9.DE.20Ferri-fluoro-katophoriteNa(CaNa)(Mg4Fe3+)(AlSi7O22)F2Mon. 2/m : B2/m
9.DE.25Arfvedsonite[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25EckermanniteNaNa2(Mg4Al}Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-eckermanniteNaNa2(Fe2+4Al)Si8O22(OH)2Mon.
9.DE.25Ferro-glaucophane◻[Na2][Fe2+3Al2]Si8O22(OH)2Mon.
9.DE.25Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2Mon.
9.DE.25Potassic-mangani-leakeite[(Na,K)][Na2][Mg2Mn3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Mangano-ferri-eckermannite{Na}{Na2}{Mn2+4Fe3+}Si8O22(OH)2Mon.
9.DE.25Ferri-leakeite[Na][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
9.DE.25Magnesio-riebeckite◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2Mon.
9.DE.25Magnesio-arfvedsonite{Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25NybøiteNaNa2(Mg3Al2)(AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.25Riebeckite◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Mangano-mangani-ungarettiiteNaNa2(Mn2+2Mn3+3)(Si8O22)O2Mon.
9.DE.25Ferro-ferri-nybøiteNaNa2[(Fe2+3,Mg)Fe3+2](AlSi7O22)(OH)2Mon. 2/m : B2/m
9.DE.25Clino-ferro-ferri-holmquistite◻{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25Ferri-nybøiteNaNa2(Mg3Fe3+2](AlSi7O22)(OH)2Mon.
9.DE.25Ferro-ferri-leakeite[Na][Na2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon.
9.DE.25Ferro-ferri-fluoro-leakeiteNa(Na2)(Fe2+2Fe3+2Li)(Si8O22)(F)2Mon.
9.DE.25Sodic-ferri-clinoferroholmquistiteNa0.5{Li2}{Fe2+3Fe3+2}(Si8O22)(OH)2Mon.
9.DE.25Magnesio-fluoro-arfvedsonite[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2Mon.
9.DE.25Ferri-pedrizite[Na][Li2][Mg2Fe3+2Li]Si8O22(OH)2Mon.
9.DE.25Potassic-ferri-leakeite[K][Na2][Mg2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Fluoro-nybøiteNaNa2(Mg3Al2)(AlSi7O22)(F,OH)2Mon. 2/m : B2/m
9.DE.25Mangani-dellaventuraiteNaNa2(MgMn3+2Ti4+Li)Si8O22O2Mon. 2/m : B2/m
9.DE.25Fluoro-pedriziteNaLi2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25Potassic-arfvedsonite[(K,Na)][Na2][Fe2+4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Mangani-obertiiteNaNa2(Mg3Mn3+Ti4+)Si8O22O2Mon. 2/m : B2/m
9.DE.25Potassic-magnesio-fluoro-arfvedsonite[(K,Na)][Na2][Mg4Fe3+][Si8O22][(F,OH)2]Mon. 2/m : B2/m
9.DE.25Ferro-ferri-pedrizite[Na][Li2][Fe2+2Fe3+2Li]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Potassic-magnesio-arfvedsonite[K][Na2][Mg4Fe3+]Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25PedriziteNaLi2(LiMg2Al2)(Si8O22)(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-pedriziteNaLi2(Fe2+2Al2Li)Si8O22(OH)2Mon. 2/m : B2/m
9.DE.25Ferro-fluoro-pedriziteNa(Li2)(Fe2+2Al2Li)[Si8O22]F2Mon. 2/m : B2/m
9.DE.25Fluoro-leakeiteNaNa2(Mg2Al2Li)(Si8O22)F2Mon. 2/m : B2/m
9.DE.25Ferro-ferri-obertiiteNaNa2(Fe2+3Fe3+Ti)Si8O22O2Mon. 2/m : B2/m
9.DE.25Ferri-obertiiteNaNa2(Mg3Fe3+Ti)Si8O22O2Mon. 2/m : B2/m

Fluorescence of Potassic-fluoro-hastingsiteHide

Not fluorescent in UV.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Potassic-fluoro-hastingsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lupulescu, M.V., Rakovan, J., Dyar, M.D., Robinson, G.W., Hughes, J.M. (2009): Fluoro-potassichastingsite from the Greenwood mine, Orange County, New York: a new end member calcic amphibole. The Canadian Mineralogist, 47, 909-916.
Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Potassic-fluoro-hastingsiteHide

Localities for Potassic-fluoro-hastingsiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • New York
    • Orange Co.
      • Town of Tuxedo
Marian Lupulescu (2008) Rocks and Minerals, 83, #3; Lupulescu, M.V., Rakovan, J., Darby Dyar, M., Robinson, G.W., Hughes, J.M. (2009): Fluoro-potassichastingsite from the Greenwood Mine, Orange County, New York: a new end-member calcic amphibole. Canadian Mineralogist, 47, 909-916.
 
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