IMA2003-045a Mineral Data

IMA2003-045a Mineral Data

General IMA2003-045a Information

Chemical Formula:

(Sc,Ca)2KBe3Si12O30

Composition:

Molecular Weight = 970.62 gm

Potassium 4.03 % K 4.85 % K₂O

Calcium 2.06 % Ca 2.89 % CaO

Scandium 6.95 % Sc 10.66 % Sc₂O₃

Beryllium 2.79 % Be 7.73 % BeO

Silicon 34.72 % Si 74.28 % SiO₂

Oxygen 49.45 % O

______ ______

100.00 % 100.41 % = TOTAL OXIDE

Empirical Formula:

Sc_1.5Ca_0.5KBe₃Si₁₂O₃₀

Environment:

Milarite group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Heftetjern pegmatite, southern Norway Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

Search for IMA2003-045a Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

IMA2003-045a Crystallography

Axial Ratios:

a:c = 1:1.38565

Cell Dimensions:

a = 10.097, c = 13.991, Z = 2; V = 1,235.28 Den(Calc)= 2.61

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6/mmc

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

By Intensity(I/I_o): 3.229(1), 2.88(0.8), 4.097(0.7),3.504(0.5), 5.044(0.5), 1.751(0.4), 1.836(0.4), 7.012(0.4),

Optical Properties of IMA2003-045a

Optical Data:

NCalc= 1.56 - from Gladstone-Dale relationship (KC = 0.216) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2003-045a

Electron Density:

r_electron=2.58 gm/cc
note: r_IMA2003-045a=2.61 gm/cc.

Fermion Index

Fermion Index = 0.04434
Boson Index = 0.95566

Photoelectric:

PE_IMA2003-045a= 2.98 barns/electron
U=PE_IMA2003-045a x r_electron= 7.71 barns/cc.

Radioactivity:

GRapi = 57.57 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from IMA2003-045a - barely detectable

IMA2003-045a Classification

Dana Class:

63.2.1a.19 (63)Cyclosilicate Condensed Rings

(63.2)Milarite - Osumilite type (6x2) Double Rings

(63.2.1a)Milarite - Osumilite group (Milarite - Osumilite subgroup)

63.2.1a.1 Brannockite KSn2Li3Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.2 Chayesite K(Mg,Fe)4Fe(Si12O30) P 6/mcc 6/m 2/m 2/m

63.2.1a.3 Darapiosite KNa2Zr[Li(Mn,Zr)2Si12O30] P 6/mcc 6/m 2/m 2/m

63.2.1a.4 Eifelite KNa3Mg4Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.5 Merrihueite (K,Na)2(Fe,Mg)5Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.6 Osumilite-(Fe) (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.7 Osumilite-(Mg) (K,Na)(Mg,Fe)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.8 Poudretteite KNa2B3Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.9 Sugilite KNa2(Fe,Mn,Al)2Li3Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.10 Yagiite (Na,K)3Mg4(Al,Mg)6(Si,Al)24O60 P 6/mmc 6/m 2/m 2/m

63.2.1a.11 Dusmatovite K(K,Na,[])(Mn,Y,Zr)2(Zn,Li)3Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.12 Milarite K2Ca4Al2Be4Si24O60·(H2O) P 6/mcc 6/m 2/m 2/m

63.2.1a.13 Sogdianite (K,Na)2(Li,Fe,Al)3ZrSi12O30 P 6/mmm 6/m 2/m 2/m

63.2.1a.14 Roedderite (Na,K)2(Mg,Fe)5Si12O30 P 6₃/mmc 6/m 2/m 2/m

63.2.1a.15 Berezanskite! KLi3Ti2Si12O30 P 6/mcc 6/m 2/m 2/m

63.2.1a.16 Shibkovite! K(Ca,Mn,Na)2(K2-x,[]x)2ZnSi12O30(x~0.8) P 6/mcc 6/m 2/m 2/m

63.2.1a.17 Trattnerite! (Fe,Mg)2(Mg,Fe)3(Si12O30) P 6/mcc 6/m 2/m 2/m

63.2.1a.18 Almarudite! K([],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] P 6/mcc 6/m 2/m 2/m

63.2.1a.19 IMA2003-045a ! (Sc,Ca)2KBe3Si12O30 P 6/mmc 6/m 2/m 2/m

Strunz Class:

VIII/EX.00-00 VIII - Silicates

VIII/EX - Unclassified Strunz Cyklosilicates

VIII/EX.00 - Osumilite Group

Other IMA2003-045a Information

See Also:

Links to other databases for IMA2003-045a :
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)

Search for IMA2003-045a using:

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

Visit our Advertisers for IMA2003-045a :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate IMA2003-045a Mineral Data :

Ask about IMA2003-045a 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 IMA2003-045a Specimen Label here :

IMA2003-045a

(Sc,Ca)2KBe3Si12O30
Dana No: 63.2.1a.19 Strunz No: VIII/EX.00-00
Locality:

Notes: