Karupmollerite-Ca Mineral Data

Karupmollerite-Ca Mineral Data

General Karupmollerite-Ca Information

Chemical Formula:

(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O)

Composition:

Molecular Weight = 1,211.35 gm

Potassium 1.42 % K 1.71 % K₂O

Barium 0.23 % Ba 0.25 % BaO

Sodium 1.59 % Na 2.15 % Na₂O

Strontium 0.07 % Sr 0.09 % SrO

Calcium 4.23 % Ca 5.93 % CaO

Titanium 5.06 % Ti 8.44 % TiO₂

Manganese 0.23 % Mn 0.29 % MnO

Niobium 20.71 % Nb 29.62 % Nb₂O₅

Aluminum 0.13 % Al 0.25 % Al₂O₃

Zinc 0.05 % Zn 0.07 % ZnO

Iron 0.32 % Fe 0.46 % Fe₂O₃

Silicon 18.48 % Si 39.53 % SiO₂

Hydrogen 1.25 % H 11.21 % H₂O

Oxygen 46.21 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na_0.84Ca_0.64K_0.44Ba_0.02Sr_0.01Ca_0.64Mn²⁺_0.05Zn_0.01Nb_2.7Ti_1.28Fe³⁺_0.07Si_7.97Al_0.06O_24.09 OH_1.23O_2.75·6.92(H₂O)

Environment:

Found replacing epistolite which was derived from vuonnemite. (labuntsovite group; structure refined)

IMA Status:

Approved IMA 2002 (Dana # Added)

Locality:

Ilimaussaq alkaline complex, South Greenland. Link to MinDat.org Location Data.

Name Origin:

Named for Svend Karup-Moller (1936-), Danish mineralogist.

Synonym:

IMA2001-028

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Karupmollerite-Ca Crystallography

Axial Ratios:

a:b:c =1.03:1:0.5568

Cell Dimensions:

a = 14.641, b = 14.214, c = 7.9148, Z = 2; beta = 117.36° V = 1,462.87 Den(Calc)= 2.75

Crystal System:

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

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

By Intensity(I/I_o): 7.026(1)(001), 4.996(0.74)(021), 7.104(0.73)(020),3.171(0.56)(041), 6.482(0.45)(201), 3.15(0.38), 3.253(0.38),

Physical Properties of Karupmollerite-Ca

Cleavage:

None

Color:

White, Grayish white, Pinkish white.

Density:

2.71

Diaphaniety:

Translucent

Habit:

Platy - Sheet forms (e.g. micas).

Habit:

Pseudomorphous - Occurs in the form of another mineral.

Hardness:

5 - Apatite

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Karupmollerite-Ca

Gladstone-Dale:

CI meas= 0.003 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.018 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2513,KPDmeas= 0.255,KC= 0.2559

Calculated Properties of Karupmollerite-Ca

Electron Density:

r_electron=2.66 gm/cc
note: r_{Karupmollerite-Ca}=2.71 gm/cc.

Fermion Index

Fermion Index = 0.01599
Boson Index = 0.98401

Photoelectric:

PE_{Karupmollerite-Ca}= 33.30 barns/electron
U=PE_{Karupmollerite-Ca} x r_electron= 88.56 barns/cc.

Radioactivity:

GRapi = 20.09 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Karupmollerite-Ca - barely detectable

Karupmollerite-Ca Classification

Dana Class:

60.1.3c.3 (60)Cyclosilicate Four-Membered Rings

(60.1)as Titanosilicates

(60.1.3c)Labuntsovite Group (Kuzmenkoite subgroup Monoclinic [C2/m])

60.1.3c.1 Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O) C 2/m 2/m

60.1.3c.2 Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4·6-8(H2O) Cm m

60.1.3c.3 Karupmollerite-Ca ! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m

60.1.3c.4 Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m

Strunz Class:

VIII/E.07-90 VIII - Silicates

VIII/E - Cyklosilicates, quadruplet rings [Si4O11]8-

VIII/E.07 - Labuntsovite Group

VIII/E.07-10 Korobitsynite! Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O) Pbam 2/m 2/m 2/m

VIII/E.07-20 Nenadkevichite (Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O) Pbam 2/m 2/m 2/m

VIII/E.07-30* Strontiochevkinite (Sr,REE)4Fe(Ti,Zr)2Ti2Si4O22 C 2/a 2/m

VIII/E.07-30 Tsepinite-Na! (Na,H3O,K,Sr,Ba)2(Ti,Nb)2[Si4O12](OH,O)2·3(H2O) Cm m

VIII/E.07-32 Tsepinite-K! (K,Ba,Na)2(Ti,Nb)2(Si4O12)(OH,O)2·3(H2O) Cm m

VIII/E.07-33 Tsepinite-Ca! (Ca,K,Na,[])2(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m

VIII/E.07-34 Paratsepinite-Ba! (Ba,Na,K)2-x(Ti,Nb)2(Si4O12)(OH,O)2·4(H2O) C 2/m 2/m

VIII/E.07-40 Vuoriyarvite-K! (K,Na)2(Nb,Ti)2Si4O12(O,OH)2·4(H2O) Cm m

VIII/E.07-50 Clinophosinaite! Na3CaPSiO7 P 2/c 2/m

VIII/E.07-50* Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4·6-8(H2O) Cm m

VIII/E.07-60* Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4·5(H2O) C 2/m 2/m

VIII/E.07-60 Phosinaite-(Ce)! Na13Ca2Ce[Si4O12](PO4)4 P 22121 2 2 2

VIII/E.07-70 Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]·4(H2O) C 2/m 2/m

VIII/E.07-80 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m

VIII/E.07-90 Karupmollerite-Ca (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m

VIII/E.07-100 Lemmleinite-K! NaK2(Ti,Nb)2Si4O12(O,OH)2·2(H2O) C 2/m 2/m

VIII/E.07-110 Lemmleinite-Ba! Na2K2Ba1-xTi4(Si4O12)2(O,OH)4·5(H2O) C 2/m 2/m

VIII/E.07-130 Paralabuntsovite-Mg! Na8K8Mg8Ti16(Si4O12)8(O,OH)16·n(H2O) I2/m 2/m

VIII/E.07-140 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m

VIII/E.07-150 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8·10(H2O) C 2/m 2/m

VIII/E.07-155 Labuntsovite-Mn Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8·n(H2O),n=10-12 I2/m 2/m

VIII/E.07-170 Parakuzmenkoite-Fe! (K,Ba)2Fe(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) C 2/m 2/m

VIII/E.07-180 Organovaite-Zn! K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) C 2/m 2/m

VIII/E.07-190 Organovaite-Mn! K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6(H2O) Cm m

VIII/E.07-200 Gutkovaite-Mn! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4·5(H2O) Cm m

VIII/E.07-205 Neskevaaraite-Fe! NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4·6(H2O) Cm m

VIII/E.07-210 Alsakharovite-Zn! NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m

VIII/E.07-220 Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4·7(H2O) Cm m

Other Karupmollerite-Ca Information

References:

NAME( AmMin, v 88, p 932) PHYS. PROP.(AmMin, v 88, p 932) OPTIC PROP.(AmMin, v 88, p 932)

See Also:

Links to other databases for Karupmollerite-Ca :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Print or Cut-and-Paste your Karupmollerite-Ca Specimen Label here :

Karupmollerite-Ca

(Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·7(H2O)
Dana No: 60.1.3c.3 Strunz No: VIII/E.07-90
Locality:

Notes: