Ferri-clinoholmquistite Mineral Data (original) (raw)

General Ferri-clinoholmquistite Information

Help on Chemical Formula: Chemical Formula:

[ ]Li2Mg3(Fe3+)2(Si8O22)(OH)2

Help on Composition: Composition:

Molecular Weight = 849.26 gm

Potassium 0.14 % K 0.17 % K2O

Sodium 1.98 % Na 2.66 % Na2O

Lithium 1.76 % Li 3.78 % Li2O

Calcium 0.19 % Ca 0.26 % CaO

Magnesium 3.46 % Mg 5.74 % MgO

Titanium 0.68 % Ti 1.13 % TiO2

Aluminum 0.64 % Al 1.20 % Al2O3

Zinc 0.15 % Zn 0.19 % ZnO

Iron 19.00 % Fe 11.42 % FeO / 14.48 % Fe2O3

Silicon 26.46 % Si 56.60 % SiO2

Hydrogen 0.19 % H 1.68 % H2O

Oxygen 44.42 % O

Fluorine 0.94 % F 0.94 % F

- % F -0.40 % -O=F2

______ ______

100.00 % 99.86 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na0.43K0.03Li1.66Na0.3Ca0.04Fe3+1.54Fe2+1.35Mg1.21Li0.49Al0.2Ti0.12Zn0.02Si8O22(OH)1.58F0.42

Help on Environment: Environment:

Hydrothermal episyenitic bodies located in the east of the Pedriza Massif.

Help on IMA Status: IMA Status:

Approved IMA 1998 (Dana # Added)

Help on Locality: Locality:

East Pedriza Massif (Central System, Spain), Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

The name reflects its composition, monoclinic crystal structure, and relationship to holmquistite in accord with the nomenclature of Leake (1978a, 1978b)

Help on Synonym: Synonym:

IMA1995-045

IMA1995-045b

Sodic-ferriclinoferroholmquistite

Search for Ferri-clinoholmquistite Images

Click Here To Search Images:

Ferri-clinoholmquistite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.5308:1:0.2956

Help on Cell Dimensions: Cell Dimensions:

a = 9.472, b = 17.844, c = 5.276, Z = 2; beta = 101.97° V = 872.35 Den(Calc)= 3.23

Help on Crystal System: Crystal System:

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

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 3.1(1)(310), 8.222(0.61)(110), 2.741(0.53)(330),1.433(0.46)(243), 4.458(0.19)(040),

Click Here for Large Ferri-clinoholmquistite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

| | Caballero J M , Monge A , Iglesia A L , Tornos F , American Mineralogist , 83 (1998) p.167-171, Ferri-clinoholmquistite, Li2(Fe,Mg)3Fe2Si8O22(OH)2, a new Li clinoamphibole from, the Pedriza Massif, Sierra de Guadarrama, Spanish Central System View Additional jPOWD Structure files for Ferri-clinoholmquistite [1] | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Ferri-clinoholmquistite

Help on Cleavage: Cleavage:

{110} Perfect, {110} Perfect

Help on Color: Color:

Black.

Help on Density: Density:

3.19

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

Brittle - Splintery - Brittle fracture leaving splintery fragments.

Help on Habit: Habit:

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

Help on Hardness: Hardness:

6 - Orthoclase

Help on Luster: Luster:

Vitreous (Glassy)

Help on Streak: Streak:

gray

Optical Properties of Ferri-clinoholmquistite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.03 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.042 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2178,KPDmeas= 0.2205,KC= 0.2272
Ncalc = 1.72 - 1.73

Help on Optical Data: Optical Data:

Biaxial (+), a=1.699, b=1.703, g=1.708, bire=0.0090, 2V(Calc)=84, 2V(Meas)=72. Dispersion r < v.

Calculated Properties of Ferri-clinoholmquistite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.14 gm/cc
note: Specific Gravity of Ferri-clinoholmquistite =3.19 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Help on Photoelectric: Photoelectric:

PEFerri-clinoholmquistite = 7.02 barns/electron
U=PEFerri-clinoholmquistite x relectron= 22.01 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 1.97 (Gamma Ray American Petroleum Institute Units)
Concentration of Ferri-clinoholmquistite per GRapi unit = 50.87 (%)

Estimated Radioactivity from Ferri-clinoholmquistite - barely detectable

Ferri-clinoholmquistite Classification

Help on Dana Class: Dana Class:

66.01.01.08a (66)Inosilicate Double-Width Unbranched Chains, W=2

(66.01)with P=2 amphibole configuration

(66.01.01)Group 1, the Mg-Fe-Mn-Li amphiboles (Monoclinic)

66.01.01.01 Magnesiocummingtonite (Mg,Fe)7Si8O22(OH)2 C 2/m 2/m

66.01.01.02 Cummingtonite []Mg7Si8O22(OH)2 C 2/m 2/m

66.01.01.03 Grunerite []Fe7Si8O22(OH)2 C 2/m 2/m

66.01.01.03b Permanganogrunerite! []Mn4(Fe)3(Si8O22)(OH)2 C 2/m 2/m

66.01.01.04 Manganocummingtonite Na(Na,Mn)2(Mg4,Fe)5Si8O22(OH)2 C 2/m 2/m

66.01.01.05 Manganogrunerite []Mn2Fe5Si8O22(OH) C 2/m 2/m

66.01.01.06 Magnesioclinoholmquistite? Li2(Mg,Fe)3Al2Si8O22(OH)2 C 2/m 2/m

66.01.01.07 Clinoholmquistite? [](Li2Mg3Al2)Si8O22(OH)2 C 2/m 2/m

66.01.01.08 Clinoferroholmquistite [](Li2Fe3Al2)Si8O22(OH)2 C 2/m 2/m

66.01.01.08a Ferri-clinoholmquistite! []Li2Mg3(Fe3)2(Si8O22)(OH)2 C 2/m 2/m

66.01.01.08b Ferri-clinoferroholmquistite! []Li2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m

66.01.01.09 Sodic-ferripedrizite! Na(LiNa)(Fe2Mg2Li)Si8O22(OH,F)2 C 2/m 2/m

66.01.01.09a Ferripedrizite! NaLi2(Fe2Mg2Li)Si8O22(OH)2 C 2/m 2/m

66.01.01.09b Sodic-ferri-ferropedrizite! NaLi2(Fe2Fe3)Si8O22(OH)2 C 2/m 2/m

66.01.01.09c Fluoro-sodic-pedrizite! NaLi2(Mg2Al2Li)S5Si8O22F2 C 2/m 2/m

Help on Strunz Class: Strunz Class:

09.DD.05 09 - SILICATES (Germanates)

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

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

09.DD.05 Ferri-clinoholmquistite! []Li2Mg3(Fe3)2(Si8O22)(OH)2 C 2/m 2/m

09.DD.05 Clinoholmquistite? [](Li2Mg3Al2)Si8O22(OH)2 C 2/m 2/m

09.DD.05 Magnesiogedrite? (Mg,Fe)5Al2Si6Al2O22(OH)2 P nma 2/m 2/m 2/m

09.DD.05 Magnesioholmquistite Li2(Mg,Fe)3Al2Si8O22(OH)2 P nma 2/m 2/m 2/m

09.DD.05 Magnesioclinoholmquistite? Li2(Mg,Fe)3Al2Si8O22(OH)2 C 2/m 2/m

Other Ferri-clinoholmquistite Information

Help on References: References:

NAME( AmMin 83:167) PHYS. PROP.(AmMin 83:167) OPTIC PROP.(Am.Min., 83:167)

Help on See Also: See Also:

Links to other databases for Ferri-clinoholmquistite :
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

Search for Ferri-clinoholmquistite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ferri-clinoholmquistite :

A Bijoux Google Search for Ferri-clinoholmquistite
Adam's Minerals Google Search for Ferri-clinoholmquistite
Cape Minerals Google Search for Ferri-clinoholmquistite
Dakota Matrix Minerals Google Search for Ferri-clinoholmquistite
Excalibur Mineral Corp. Google Search for Ferri-clinoholmquistite
Exceptional Minerals Google Search for Ferri-clinoholmquistite
John Betts Fine Minerals Search for Ferri-clinoholmquistite
McDougall Minerals Google Search for Ferri-clinoholmquistite
Mineral News Website Link
Rock and Mineral Shows Google Search for Ferri-clinoholmquistite
Weinrich Minerals, Inc. Google Search for Ferri-clinoholmquistite

Ask about Ferri-clinoholmquistite 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 Espa�ol

Print or Cut-and-Paste your Ferri-clinoholmquistite Specimen Label here :

Ferri-clinoholmquistite

[ ]Li2Mg3(Fe3+)2(Si8O22)(OH)2
Dana No: 66.01.01.08a Strunz No: 09.DD.05
Locality:

Notes: