Karupmollerite-Ca Mineral Data

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

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

Karupmollerite-Ca Image

Images:

Karupmollerite-Ca

Comments: Small white fragment of kaupmollerite-Ca in a geletin capsule.
Location: Mellemelv, Ilimaussaq, Greenland. Scale: Capsule Size 1 cm.
© Sergey Vasiliev / Systematic Mineralogy

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

Diaphaneity:

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
Ncalc = 1.69 - 1.7

Calculated Properties of Karupmollerite-Ca

Electron Density:

Bulk Density (Electron Density)=2.66 gm/cc
note: Specific Gravity of Karupmollerite-Ca =2.71 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

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)
Concentration of Karupmollerite-Ca per GRapi unit = 4.98 (%)

Estimated Radioactivity from Karupmollerite-Ca - barely detectable

Karupmollerite-Ca Classification

Dana Class:

60.01.03c.03 (60)Cyclosilicate Four-Membered Rings

(60.01)as Titanosilicates

(60.01.03c)Labuntsovite Group (Kuzmenkoite subgroup Monoclinic [C2/m])

60.01.03c.01 Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4•5(H2O) C 2/m 2/m

60.01.03c.02 Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4•6-8(H2O) Cm m

60.01.03c.03 Karupmollerite-Ca! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•7(H2O) C 2/m 2/m

60.01.03c.04 Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) Cm m

Strunz Class:

09.CE.30c 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),

09.CE.30c Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) C 2/m 2/m

09.CE.30c Karupmollerite-Ca! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•7(H2O) C 2/m 2/m

09.CE.30c Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4•6-8(H2O) Cm m

09.CE.30c Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4•5(H2O) C 2/m 2/m

09.CE.30c Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]•4(H2O) C 2/m 2/m

09.CE.30c Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) Cm m

09.CE.30c Gjerdingenite-Ca! K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•6H2O C 2/m 2/m

09.CE.30c Gjerdingenite-Na! (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4•5H2O C 2/m 2/m

09.CE.30c Burovaite-Ca! (K,Na)4Ca2(Ti,Nb)8[Si4O12]4(OH,O)8•12H2O C 2/m 2/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
10 - Ruff.Info

Search for Karupmollerite-Ca using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Karupmollerite-Ca :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Karupmollerite-Ca Mineral Data :

Ask about Karupmollerite-Ca here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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: 60.01.03c.03 Strunz No: 09.CE.30c
Locality:

Notes: