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Spadaite

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Spadait aus Palos Verdes, Kalifornien
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Spadait aus Palos Verdes, Kalifornien (SNr: J4K11)

Mineralstatus fragwürdig. Belegstück; Breite des Objektes ca. 2 mm.

Collection: prospector56
Copyright: prospector56
Contribution: prospector56 2021-01-11
Locality: Palos Verdes, Halbinsel / Los Angeles Co. / Kalifornien (California) / USA

Collectors Summary

Color cremeweiß
Streak color weiß
Hardness (Mohs) 2.5
Cleavages vollkommen

Chemism

Chem­ical formula

MgSiO2(OH)2·H2O

Chem­ical com­po­si­tion

Magnesium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 136.419528 u; Number of atoms in the formula: 11

Info

Empirical formula:

MgSiO2(OH)2·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.96

4

36.36

1.0079470

4.0317880

Oxygen

O

58.64

5

45.45

15.9994300

79.9971500

Magnesium

Mg

17.82

1

9.09

24.3050600

24.3050600

Silicon

Si

20.59

1

9.09

28.0855300

28.0855300

Strunz 9th edi­tion incl. updates

9.EC.45

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
C: Schichtsilikate (Phyllosilikate) mit Glimmer Tafeln, zusammengesetzt aus tetrahedralen oder octahedralen Netzen
45:Saponit-Gruppe

Lapis Clas­sifica­tion

VIII/H.20-030

VIII: SILIKATE
H: Schichtsilikate
20: Tonminerale, regulär geschichtet; Glimmerartige Schicht-silikate mit Baugruppen [Si4O10] 4- und verwandte Strukturen; Montmorillonit-Gruppe

IMA sta­tus

Status fragwürdig

Optical Properties

Color

cremeweiß

Streak color

weiß

Physical Properties

Hard­ness (Mohs)

2.5

Cleav­ages

vollkommen

(Co-)Type locality

(Co-)Type locality

Italien/Latium (Lazio), Region/Rom, Provinz/Capo di Bove

Preface

Author (Name, Year)

von Kobell, 1863

References

Hey's Mineral Index (A. M. Clark) 3rd ed (1993), 652

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

'Kerolite'

(Mg,Ni)3Si4O10(OH)2·H2O

9.EC.45

'Spadaite'

MgSiO2(OH)2·H2O

9.EC.45

Sauconite

Na0.3Zn3(Si,Al)4O10(OH)2·4H2O

9.EC.45

'Stevensite'

(Ca|2)0.3Mg3Si4O10(OH)2

9.EC.45

Zincsilite

Zn3Si4O10(OH)2·4H2O

9.EC.45

Ferrosaponite

Ca0.3(Fe2+,Mg,Fe3+)3[(OH)2|(Si,Al)Si3O10]·4H2O

9.EC.45

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

'Hectorite'

Na0.3(Mg,Li)3Si4O10(F,OH)2

VIII/H.20-010

Saponite

(Ca,Na)0.3(Mg,Fe2+)3(Si,Al)4O10(OH)2·4H2O

VIII/H.20-020

Ferrosaponite

Ca0.3(Fe2+,Mg,Fe3+)3[(OH)2|(Si,Al)Si3O10]·4H2O

VIII/H.20-027

'Spadaite'

MgSiO2(OH)2·H2O

VIII/H.20-030

'Stevensite'

(Ca|2)0.3Mg3Si4O10(OH)2

VIII/H.20-040

Sauconite

Na0.3Zn3(Si,Al)4O10(OH)2·4H2O

VIII/H.20-050

Zincsilite

Zn3Si4O10(OH)2·4H2O

VIII/H.20-060

Other languages

German

Spadait

French

Spadaite

English

Spadaite

Spanish

Spadaíta

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

German pages

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English pages

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German pages

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