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Ferripiemontite

Chemism

Chemical formula

CaCaFe3+AlMn3+(Si3O12)(OH)

Empirical formula (analysis)

(Ca0.92Mn0.08)Σ1.00 (Ca0.53La0.27Pb0.14Nd0.11)Σ1.05 (Fe0.45Al0.43)Σ0.88 Al1.00(Mn0.60 Mg0.17Zn0.12Cu0.11)Σ1.00 [Si3.05O11](OH,O)2

Chemical composition

Aluminium, Calcium, Eisen, Mangan, Silicium, Sauerstoff, Wasserstoff

Unit weight: 555.702572158 u; Number of atoms in the formula: 22.48

Info

Empirical formula:

(Ca0.92Mn0.08)(Ca0.53La0.27Pb0.14Nd0.11)(Fe0.45Al0.43)Al1.00(Mn0.60Mg0.17Zn0.12Cu0.11)[Si3.05O11]((OH)0.75O0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.27

1.5

6.67

1.0079470

1.5119205
Oxygen

O

37.43

13

57.83

15.9994300

207.9925900
Magnesium

Mg

0.74

0.17

0.76

24.3050600

4.1318602
Aluminium

Al

6.94

1.43

6.36

26.9815382

38.5835996
Silicon

Si

15.41

3.05

13.57

28.0855300

85.6608665
Calcium

Ca

10.46

1.45

6.45

40.0784000

58.1136800
Manganese

Mn

6.72

0.68

3.02

54.9380499

37.3578739
Iron

Fe

4.52

0.45

2.00

55.8452000

25.1303400
Copper

Cu

1.26

0.11

0.49

63.5463000

6.9900930
Zinc

Zn

1.41

0.12

0.53

65.4094000

7.8491280
Lanthanum

La

6.75

0.27

1.20

138.9055200

37.5044904
Neodymium

Nd

2.86

0.11

0.49

144.2430000

15.8667300
Lead

Pb

5.22

0.14

0.62

207.2100000

29.0094000

IMA status

noch nicht anerkanntes Mineral

Mineral status

Mineralstatus fragwürdig

IMA Classification

IMA Classification

 Epidote supergroup  ⇒ Epidote group

References

Varlamov, D.A., Yermolaeva, V.N., Chukanov, N.V., Jančev, S., Vigasina, M.F., Plechov, P.Yu. (2019) Novoe v mineralogii nadgruppy epidota: neobychnye himicheskie sostavy, tipohimizm, KR-spektroskopiya (New data on chemical composition and Raman spectra of epidote-supergroup minerals). Zapiski RMO 1, 79-99; DOI: 10.30695/zrmo/2019.1481.07 (in Russian, with English abstract)

IMA group assignments

Other languages

German

Ferripiemontit

English

Ferripiemontite

Russian

Феррипьемонтит

IDs

GUSID (Global unique identifier short form) U8tOlM0S2ECpY--rj8MbLQ
GUID (Global unique identifier) 944ECB53-12CD-40D8-A963-EFAB8FC31B2D
Database ID 8729