'._('einklappen').'
 

Magnesio-ferri-fluoro-hornblende

Collectors Summary

Crystal System monoklin, C2/m

Chemism

Chem­ical formula

☐Ca2(Mg4Fe3+)(Si7Al)O22F2

Empir­ical formula (anal­y­sis)

(Na0.15K0.22)Σ0.37 (Na0.25Ca1.66Mn0.09)Σ2.00 (Mg2.20Fe2+1.94Mn0.01Zn0.01Fe 3+0.72Ti0.13)Σ5.01 (Al1.11Si6.89)Σ8.00 O22[F1.55(OH)0.37Cl0.08)]Σ2.00

Chem­ical com­po­si­tion

Aluminium, Calcium, Eisen, Magnesium, Silicium, Fluor, Sauerstoff, Vakanz

Unit weight: 912.7404458995 u; Number of atoms in the formula: 39.75

Info

Empirical formula:

(Na0.15K0.22)(Na0.25Ca1.66Mn0.09)(Mg2.20Fe1.94Mn0.01Zn0.01Fe0.72Ti0.13)(Al1.11Si6.89)O22[F1.55(OH)0.37Cl0.08)]

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.04

0.37

0.93

1.0079470

0.3729404

Oxygen

O

39.21

22.37

56.28

15.9994300

357.9072491

Fluorine

F

3.23

1.55

3.90

18.9984033

29.4475250

Sodium

Na

1.01

0.4

1.01

22.9897702

9.1959081

Magnesium

Mg

5.86

2.2

5.53

24.3050600

53.4711320

Aluminium

Al

3.28

1.11

2.79

26.9815382

29.9495074

Silicon

Si

21.20

6.89

17.33

28.0855300

193.5093017

Chlorine

Cl

0.31

0.08

0.20

35.4532000

2.8362560

Potassium

K

0.94

0.22

0.55

39.0983100

8.6016282

Calcium

Ca

7.29

1.66

4.18

40.0784000

66.5301440

Titanium

Ti

0.68

0.13

0.33

47.8671000

6.2227230

Manganese

Mn

0.60

0.1

0.25

54.9380499

5.4938050

Iron

Fe

16.27

2.66

6.69

55.8452000

148.5482320

Zinc

Zn

0.07

0.01

0.03

65.4094000

0.6540940

Anal­y­sis wt%

SiO2 : 45.34, Al2O3 : 6.18, TiO2 : 1.22, FeO : 15.24, Fe2O3 : 6.27, MgO : 9.71, MnO : 0.78, ZnO : 0.06, CaO : 10.18, Na2O : 1.35, K2O : 1.15, F : 3.22, Cl : 0.30, H2O calc : 0.37, Total : 99.95 wt.%

Strunz 9th edi­tion incl. updates

9.DE.10

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
E: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Klinoamphibole
10:Amphibole: Ca

IMA sta­tus

anerkannt - CNMNC Newsletter No. 24, April 2015

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Calcium amphiboles  ⇒ Hornblende Amphibole

Optical Properties

max. Birefrin­gence

0.009

Birefringence chart\! Magnesio-ferri-fluoro-hornblende title=Birefringence chart Magnesio-ferri-fluoro-hornblende

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

α = 1.669

RI value β

β = 1.676

RI value γ / ε

γ = 1.678

Ri mean

1.674

2V angle

Biaxial (-) 74(1)º (gemessen) 56º (berechnet)

Ori­enta­tion

X ^ a = 47.6° (∠ stumpf), Y // b, Z ^ c = 33.4° (∠ spitz).

Pleochro­ism

In linear polarisiertem Licht ist Magnesio-Ferri-Fluor-Hornblende pleochroitisch, X = hellgrau (wenigsten), Y = dunkelgrau (die meisten), Z = blass braungrau (dazwischen)

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.839(5)

Cell param­e­ters b (Å)

18.078(9)

Cell param­e­ters c (Å)

5.319(3)

Cell param­e­ters a/b or c/a

0.544

Cell param­e­ters c/b

0.294

Cell param­e­ters α

90°

Cell param­e­ters β

104.99(3)º

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

913.893

Kristall struc­ture

Struktur bestimmt; Amphibol-Supergruppe

X-Ray Pow­der Diffrac­tion

8.412(89), 3.389(55), 3.121(64), 2.738(34), 2.711(100), 2.599(45), 2.553(61), 2.164(36)

XRD chart Magnesio-ferri-fluoro-hornblende

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Density (g/cm³)

3.315 (berechnet)

3.317 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Italien/Sardinien (Sardegna), Region/Sud Sardegna, Provinz/Portoscuso (Portu de Scusi)/2,5km N von Portoscuso (Portu de Scusi)

Type mate­r­ial

Mineralogical Museum of the Dipartimento di Scienze della Terra e dell’Ambiente, University of Pavia, Italien

Col­lec­tion number of type mate­r­ial

2014-01

Preface

Author (Name, Year)

Roberta Oberti, Massimo Boiocchi, Frank C. Hawthorne, Neil A. Ball and Luigi Chiappino (2015)

References

Oberti, R., Boiocchi, M., Hawthorne, F.C., Ball, N.A. and Chiappino, L. (2015) Magnesio-ferri-fluoro-hornblende, IMA 2014-091. CNMNC Newsletter No. 24, April 2015, page 248; Mineralogical Magazine, 79, 247-251.

Oberti, Roberta; Boiocchi, Massimo; Hawthorne, Frank C.; Ball, Neil A.; Chiappino, Luigi - Magnesio-ferri-fluoro-hornblende from Portoscuso, Sardinia, Italy: description of a newly approved member of the amphibole supergroup - Mineralogical Magazine [16. Dezember 2015]

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Chromio-pargasite

NaCa2Mg4Cr(Si6Al2O22)(OH)2

monoklin : 2/m : C2/m

9.DE.10

Tremolite

☐Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Actinolite

☐Ca2(Mg,Fe2+)5Si8O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

'Cannilloite'

CaCa2(Mg4Al)(Si5Al3)O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Joesmithite

Pb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2

monoklin : 2/m : P2/a

9.DE.10

Potassic-fluoro-pargasite

KCa2(Mg4Al)Si6Al2O22F2

monoklin : 2/m : C2/m

9.DE.10

Tschermakite

☐Ca2(Mg3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Oxo-magnesio-hastingsite

NaCa2(Mg2Fe3+3)(Si6Al2)O22O2

monoklin : 2/m : C2/m

9.DE.10

Ferro-hornblende

☐Ca2(Fe2+4Al)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Fluoro-tremolite

☐Ca2Mg5Si8O22F2

monoklin : 2/m : C2/m

9.DE.10

Vanadio-pargasite

NaCa2(Mg4V)[Si6Al2]O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Ferritschermakite

☐CaNa(Fe2+)3(Fe3+)2(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Ferro-actinolite

Ca2(Fe2+)5Si8O22(OH)2

monoklin : 2/m : C/2m

9.DE.10

Ferro-tschermakite

☐Ca2(Fe2+3Al2)(Si6Al2)O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Fluoro-cannilloite

(Ca,Na)Ca2(Mg,Fe2+)4Al[(F,OH)2|Al2Si5O22]

monoklin : 2/m : C2/m

9.DE.10

Aluminotschermakite

☐[Ca2][Mg3Al2][(OH)2|Al2Si6O22]

monoklin : 2/m : C2/m

9.DE.10

Magnesio-hornblende

☐Ca2(Mg4Al)(Si7Al)O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Oxo-mangani-leakeite

NaNa2(Mn3+4Li)Si8O22O2

monoklin : 2/m : C2/m

9.DE.10

'Parvo-manganotremolite' (Var.v. Abchasit)

AB(CaMn)Σ2CMg5TSi8O22(OH)2

monoklin : 2/m : C2/m

9.DE.10

Ferri-ferrotschermakite

Ca2(Fe2+3Fe3+2)(Si6Al2)O22(OH)2

monoklin : 2/m : C/2m

9.DE.10

Alumino-ferrotschermakite

Ca2Fe32+Al2[OH|AlSi3O11]2

monoklin : 2/m : C2/m

9.DE.10

'Potassic-ferro-sadanagaite'

KCa2(Fe2+3Al2)(Si5Al3)O22(OH)2

9.DE.10

Magnesio-ferri-fluoro-hornblende

☐Ca2(Mg4Fe3+)(Si7Al)O22F2

monoklin : 2/m : C2/m

9.DE.10

Other languages

German

Magnesio-Ferri-Fluor-Hornblende

English

Magnesio-ferri-fluoro-hornblende

Russian

Магнезиоферрифторгорнблендит

CNMNC (IMA)-Number

IMA 2014-091

CNMNC symbol

Symbol

Mffhbl

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Magnesio-Ferri-Fluor-Hornblende
Google-Bilder-Suche - search for: Magnesio-Ferri-Fluor-Hornblende
Mineralogisch-Petrographisches-Institut Hamburg - search for: Magnesio-Ferri-Fluor-Hornblende

English pages

Mindat - search for: Magnesio-ferri-fluoro-hornblende
Webmineral - search for:Magnesio-ferri-fluoro-hornblende
Handbook-of-Mineralogy - search for: Magnesio-ferri-fluoro-hornblende
RRUFF - Raman, XRD and other mineral data - search for: Magnesio-ferri-fluoro-hornblende
RRUFF - References and PDF downloads - search for: Magnesio-ferri-fluoro-hornblende
American-Mineralogist-Crystal-Structure-Database - search for: Magnesio-ferri-fluoro-hornblende
Athena - search for: Magnesio-ferri-fluoro-hornblende
Strahlen.org - search for: Magnesio-ferri-fluoro-hornblende
Mineralienatls.de (Forum) - search for: Magnesio-Ferri-Fluor-Hornblende

Russian pages

Webmineral.ru - search for: Магнезиоферрифторгорнблендит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Magnesio-Ferri-Fluor-Hornblende
Crystal-Treasure.com - search for: Magnesio-Ferri-Fluor-Hornblende
Bosse - search for: Magnesio-Ferri-Fluor-Hornblende
Edelsteine Neuburg - Gundolf Fischer - search for: Magnesio-Ferri-Fluor-Hornblende

Locations with GPS information