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Potassic-hastingsite

Collectors Summary

Crystal System monoklin, C2/m

Additional information / Summary

isostrukturell mit Chloro-Kaliumhastingsit, Fluoro-Kaliumhastingsit

Chemism

Chemical formula

KCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2

Empirical formula (analysis)

A(K0.61Na0.20Ca0.07)0.88BCa2.00C(Fe2+3.72Fe3+0.94Al0.12Mn0.06Mg0.06Ti0.04Ni0.01)4.96T(Si5.97Al2.03)O22(OH1.14Cl0.86)

Chemical composition

Aluminium, Calcium, Eisen, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 2072.5624420641 u; Number of atoms in the formula: 60.3264

Info

Empirical formula:

(K0.61Na0.20Ca0.07)0.88Ca2.00(Fe3.72Fe0.94Al0.12Mn0.06Mg0.06Ti0.04Ni0.01)4.96(Si5.97Al2.03)O22(OH1.14Cl0.86)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.06

1.14

1.89

1.0079470

1.1490596
Oxygen

O

17.76

23

38.13

15.9994300

367.9868900
Sodium

Na

0.20

0.18

0.29

22.9897702

4.0461996
Magnesium

Mg

0.35

0.3

0.49

24.3050600

7.2331859
Aluminium

Al

3.42

2.63

4.35

26.9815382

70.8319341
Silicon

Si

8.09

5.97

9.90

28.0855300

167.6706141
Chlorine

Cl

1.47

0.86

1.43

35.4532000

30.4897520
Potassium

K

1.01

0.54

0.89

39.0983100

20.9879728
Calcium

Ca

3.99

2.06

3.42

40.0784000

82.6256294
Titanium

Ti

0.46

0.2

0.33

47.8671000

9.4968326
Manganese

Mn

0.79

0.3

0.49

54.9380499

16.3495637
Iron

Fe

62.28

23.11

38.31

55.8452000

1,290.7836147
Nickel

Ni

0.14

0.05

0.08

58.6934200

2.9111936

Strunz 9th edition incl. updates

9.DE.15

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

Lapis Classification

VIII/F.10-142

VIII: SILIKATE
F: Ketten- und Bandsilikate
10: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Ca2-Amphibole

IMA status

anerkanntes Mineral April 2019 - CNMNC Newsletter 49

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

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

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

9.9405(7)

Cell parameters b (Å)

18.256(2)

Cell parameters c (Å)

5.3501(3)

Cell parameters a/b or c/a

0.545

Cell parameters c/b

0.293

Cell parameters α

90°

Cell parameters β

105.117(5)°

Cell parameters γ

90°

Z

2

Volume (ų)

937.305

Crystal structure

Struktur ermittelt; Amphibol-Supergruppe

X-Ray Powder Diffraction

8.504(100), 3.417(36), 3.155(63), 2.735(71), 2.623(35), 2.570(34), 2.365(29), 2.179(30)
XRD chart Potassic-hastingsite

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

Physical Properties

Density (g/cm³)

3.541 ber.

7.343 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

China/Innere Mongolei (Neimenggu)/Ulanhad Bund (Chifeng, Präf)/Chifeng, Stadt/Hexigten-Banner (Keshiketeng)/Danailingou As-Co-Lagerstätte

Type material

Das Typenmaterial ist in den mineralogischen Sammlungen des Geologischen Museums Chinas, Peking, China, Katalognummer M13815 hinterlegt.

References

Mazdab, F.K. (2003): The diversity and occurrence of potassium-dominant amphiboles. Canadian Mineralogist, 41, 1329-1344

Zácek, V. (2007): Potassian hastingsite and potassichastingsite from garnet-hedenbergite skarn at Vlastejovice, Czech Republic. Neues Jahrbuch für Mineralogie - Abhandlungen, 184, 161-168.

Ren, G., Li, G., Shi, J., Gu, X., Fan, G.,Yu, A., Liu, Q. and Shen, G. (2019) Potassic-hastingsite, IMA 2018-160. CNMNC Newsletter No. 49, June 2019, page xxx; Mineralogical Magazine, 83, 323–328.

Guangming Ren, Guowu Li, Jiaxin Shi, Xiangping Gu, Guang Fan, Apeng Yu, Qiuxiao Liu, Ganfu Shen: Potassic-hastingsite, KCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2, from the Keshiketeng Banner, Inner Mongolia, China: description of the neotype and its implication. Mineralogy and Petrology Vol. 114, Nr. 5 (2020) S. 403 - 412.

IMA group assignments

 
Amphibole supergroup
 
 
 

 
 
(OH,F,Cl)-dominant amphiboles
 
 
 

 
 
 
Calcium amphiboles
 
 
 

 
 
 
 
Hastingsite (Hs) amphiboles
 
 
 

 
 
 
 
 
Hastingsite
NaCa2(Fe2+,Mg)4Fe3+(Si6Al2)O22(OH)2
monoklin
C2/m

 
 
 
 
 
Magnesio-fluoro-hastingsite
NaCa2(Mg4Fe3+)(Si6Al2)O22F2
monoklin
C2/m

 
 
 
 
 
Magnesio-hastingsite
NaCa2(Mg,Fe2+)4Fe3+(Si6Al2)O22(OH)2
monoklin
C2/m

 
 
 
 
 
Oxo-magnesio-hastingsite
NaCa2(Mg2Fe3+3)(Si6Al2)O22O2
monoklin
C2/m

 
 
 
 
 
Potassic-chloro-hastingsite
KCa2(Fe2+3MgFe3+)(Si6Al2)O22Cl2
monoklin
C2/m

 
 
 
 
 
Potassic-fluoro-hastingsite
KCa2(Fe2+2Mg2Fe3+)(Si6Al2)O22F2
monoklin
C2/m

 
 
 
 
 
Potassic-hastingsite
KCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
monoklin
C2/m

 
 
 
 
 
Potassic-magnesiohastingsite
(K,Na)Ca2(Mg,Fe2+,Fe3+,Al)5(Si,Al)8O22(OH,Cl)2
monoklin
C2/m

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Actuality: 01. Oct 2024 - 03:11:44

Other languages

German

Kalium-Hastingsit

English

Potassic-hastingsite

Simplified Chinese

钾绿钙闪石

Alternative Name

German

Kaliumhastingsit

Lapis

English

Potassichastingsite

CNMNC (IMA)-Number

IMA 2018-160

CNMNC symbol

Symbol

Phst

Locations with GPS information

IDs

GUSID (Global unique identifier short form) LAVsVjMBTEeQADAWnwWg_A
GUID (Global unique identifier) 566C052C-0133-474C-9000-30169F05A0FC
Database ID 6813