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Spessartine (Spessartin)

Pictures (432 Images total)

Spessartin
Views (Image: 1326878585): 4483, Rating: 9.75
Spessartin

Größe: 11,47 mm; Fundort: Wushan Spessartin Mine, Tongbei, Provinz Fujian, China

Copyright: Matteo Chinellato
Contribution: Hg 2012-01-18
Locality: Tongbei (Wushan) / Yunxiao, Kreis / Zhangzhou, Präfektur / Fujian, Provinz / China
Spessartin
Views (Image: 1411545764): 5772, Rating: 9.88
Spessartin

Größe: 7,6 mm; Fundort: Wushan Spessartin Mine, Tongbei, Provinz Fujian, China

Copyright: Matteo Chinellato
Contribution: Hg 2014-09-24
Locality: Tongbei (Wushan) / Yunxiao, Kreis / Zhangzhou, Präfektur / Fujian, Provinz / China
Spessartin
Views (Image: 1287334414): 9002, Rating: 9.73
Spessartin

Größe: 1,84 mm; Fundort: East Grant Ridge, Cibola Co., New Mexico, USA

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-10-17
Locality: East Grant Ridge / Grants / Grants District / Cibola Co. / New Mexico / USA
Spessartin
Views (Image: 1411460921): 3883, Rating: 9.82
Spessartin

Größe: 7,2 mm; Fundort: Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan

Copyright: Matteo Chinellato
Contribution: Hg 2014-09-23
Locality: Nanga Parbat-Haramosh-Berge / Skardu, Distrikt / Gilgit-Baltistan (Nordgebiete; Northern Areas) / Pakistan
Spessartin
Views (Image: 1425388447): 2276, Rating: 9.78
Spessartin

Bildbreite: 6 mm, Fundort: Wushan Spessartin Mine, Tongbei, Provinz Fujian, China

Copyright: Frédéric Hède (Gluon)
Contribution: Hg 2015-03-03
Locality: Tongbei (Wushan) / Yunxiao, Kreis / Zhangzhou, Präfektur / Fujian, Provinz / China
Spessartin auf Muskovit
Views (Image: 1516217153): 448, Rating: 9.8
Spessartin auf Muskovit

Glasklarer Spessartinkristall mit 8 mm auf Muskovit

Copyright: Andreas Schmid
Contribution: Andreas Schmid 2018-01-17
Locality: Chilas / Diamir, Distrikt / Gilgit-Baltistan (Nordgebiete; Northern Areas) / Pakistan

Collectors Summary

Color rot, rötlich orange, gelblichbraun, rötlichbraun, braun
Streak color weiß
Hardness (Mohs) 6.5 - 7.5
Solubility + HF, - Säuren
Crystal System kubisch, Ia3d

Additional information / Summary

Siehe auch Mineralienportrait: Granat - Spessartin

Chemism

Chem­ical formula

{Mn2+3}[Al2](Si3)O12

Chem­ical com­po­si­tion

Aluminium, Mangan, Silicium, Sauerstoff

Unit weight: 495.0269761 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Mn3}[Al2](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

38.78

12

60.00

15.9994300

191.9931600

Aluminium

Al

10.90

2

10.00

26.9815382

53.9630764

Silicon

Si

17.02

3

15.00

28.0855300

84.2565900

Manganese

Mn

33.29

3

15.00

54.9380499

164.8141497

Anal­y­sis wt%

SiO2 : 35.04, Al2O3 : 21.63, FeO : 1.86, MnO : 39.83, CaO : 1.78 (Ref: American Mineralogist 32)

Strunz 9th edi­tion incl. updates

9.AD.25

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
D: Insel(Neso)silikate ohne weitere Anionen; Kationen in oktahedraler [6] und gewöhnlich größerer Koordination
25:Granat-Gruppe

Lapis Clas­sifica­tion

VIII/A.08-030

VIII: SILIKATE
A: Inselsilikate mit [SiO4] 4--Baugruppen
8: Kationen in kubischer und oktaedrischer Koordination [8+6]; Granat-Gruppe

Clas­sifica­tion by Hölzel

9.AC.120

9: SILICATES
A: Nesosilicates
C: Garnet-Group
1: Pyralspites - 8-coord. Mg, Fe(2+), Mn(2+); Pyrope - Spessartine-Group

Dana 8th edi­tion

51.04.03a.03

51: Nesosilicate Minerals
04: Nesosilicates Nesosilicate Insular SiO4 Groups Only with cations in [6] and >[6] coordination
03a: Garnet group (Pyralspite series)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Garnet supergroup  ⇒ Silicate garnets; Garnet group (Z charge 12)

Optical Properties

Color

rot, rötlich orange, gelblichbraun, rötlichbraun, braun

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

RI value α / ω / n

1.800

Ri mean

1.800

2V angle

Isotropisch

Optical Data Luminescence

Color LW-UV (365nm)

 

orangerot

Most Common Acti­vator

Cr3+

Other Acti­vators

Mn4+

After­glow (Per­sistant Lumi­nes­cence)

Mit bloßem Auge konnte keine Phosphoreszenz festgestellt werden.

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell param­e­ters a (Å)

11.61

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

1564.936

X-Ray Pow­der Diffrac­tion

2.91(20),
2.60(100),
2.37(10),
2.13(10),
1.886(20),
1.681(20),
1.614(30),
1.557(40)

XRD chart Spessartine

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

6.5 - 7.5

VHN (Hard­ness Vick­ers)

1450 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.18

4.202 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+ HF, - Säuren

Preface

Name from

dem Spessart

Author (Name, Year)

Beudant, 1832

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 746.

Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., Halenius, U., 2012; Nomenclature of the garnet supergroup. American Mineralogist; preprint December 2012 - [Formel].

IMA group assignments

Other languages

Dutch

Spessartien

German

Spessartin

Spanish

Spessartina

French

Spessartine

English

Spessartine

Russian

Спессартин

Simplified Chinese

锰铝榴石

Alternative Name

Erinite (of van der Lingen)

German

Johnstonotit

Spanish

Johnstonotita

English

Johnstonotite

Mandarin Garnet

Partschinite

Spessartine Garnet

Italian

Spessartita

CNMNC symbol

Symbol

Sps

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

German pages

DeWikiPedia - search for: Spessartin
Google-Bilder-Suche - search for: Spessartin
Mineralienatlas.de (Forum) - search for: Spessartin

English pages

Mindat - search for: Spessartine
Webmineral - search for:Spessartine
Handbook-of-Mineralogy - search for: Spessartine
RRUFF - Raman, XRD and other mineral data - search for: Spessartine
RRUFF - References and PDF downloads - search for: Spessartine
American-Mineralogist-Crystal-Structure-Database - search for: Spessartine
Strahlen.org - search for: Spessartine

Russian pages

Webmineral.ru - search for: Спессартин

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Spessartin
Crystal-Treasure.com - search for: Spessartin
Bosse - search for: Spessartin
Edelsteine Neuburg - Gundolf Fischer - search for: Spessartin

Locations with GPS information