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Pyrope

Pictures (85 Images total)

Pyrop
Views (File:
1719761333
): 61
Pyrop
Bis etwa 4 mm große Pyropkristalle von Podsedice in Tschechien.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: SyS-Pyrop-5-1-2
Location: Tschechien/Usti (Ústecký kraj)/Litomerice, Bezirk/Podseditz (Podsedice)
Mineral: Pyrope
Image: 1719761333
Rating: 9.5 (votes: 2)
License: Usage for Mineralienatlas project only
Pyrop (SNr: SyS-Pyrop-5-1-2)

Bis etwa 4 mm große Pyropkristalle von Podsedice in Tschechien.
Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2024-06-30
Locality: Podseditz (Podsedice) / Litomerice, Bezirk / Usti (Ústecký kraj) / Tschechien
Pyrop
Views (File:
1287700269
): 13958, Rating: 9.2
Pyrop
I Mondei, Montescheno, Antrona Tal, Val d'Ossola, Verbano-Cusio-Ossola, Provinz, Piemont (Piemonte), Region, Italien;
Größe: 1,8 mm
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Italien/Piemont (Piemonte), Region/Verbano-Cusio-Ossola, Provinz/Antrona Schieranco/Montescheno/I Mondei
Mineral: Pyrope
Encyclopedia: Deltoidalikositetraeder (Ikositetraeder)
Image: 1287700269
Rating: 9.2 (votes: 10)
License: Usage for Mineralienatlas project only
Pyrop

I Mondei, Montescheno, Antrona Tal, Val d'Ossola, Verbano-Cusio-Ossola, Provinz, Piemont (Piemonte), Region, Italien;
Größe: 1,8 mm
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-10-21
Locality: I Mondei / Montescheno / Antrona Schieranco / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Pyrop
Views (File:
1311722304
): 8238, Rating: 9
Pyrop
Größe: 2,5 mm; Fundort: I Mondei, Montescheno, Antrona-Tal, Val d'Ossola, Provinz Verbano-Cusio-Ossola, Provinz, Region Piemont, Italien
Copyright: Enrico Bonacina; Contribution: Philip Blümner
Collection: Domenico Preite
Location: Italien/Piemont (Piemonte), Region/Verbano-Cusio-Ossola, Provinz/Antrona Schieranco/Montescheno/I Mondei
Mineral: Pyrope
Image: 1311722304
Rating: 9 (votes: 7)
License: Usage for Mineralienatlas project only
Pyrop

Größe: 2,5 mm; Fundort: I Mondei, Montescheno, Antrona-Tal, Val d'Ossola, Provinz Verbano-Cusio-Ossola, Provinz, Region Piemont, Italien
Collection: Domenico Preite
Copyright: Enrico Bonacina
Contribution: Philip Blümner 2011-07-26
Locality: I Mondei / Montescheno / Antrona Schieranco / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Pyrop
Views (File:
1360665905
): 8918, Rating: 8.71
Pyrop
Bildbreite 12mm, von hinten beleuchtet. Fundort Třebívlice bei Lovosice, Tschechien
Copyright: berthold; Contribution: berthold
Collection: berthold
Location: Tschechien/Usti (Ústecký kraj)/Litomerice, Bezirk/Trieblitz (Trebivlice)
Mineral: Pyrope
Image: 1360665905
Rating: 8.71 (votes: 7)
License: Usage for Mineralienatlas project only
Pyrop

Bildbreite 12mm, von hinten beleuchtet. Fundort Třebívlice bei Lovosice, Tschechien
Collection: berthold
Copyright: berthold
Contribution: berthold 2013-02-12
Locality: Trieblitz (Trebivlice) / Litomerice, Bezirk / Usti (Ústecký kraj) / Tschechien
Pyrop
Views (File:
1356297689
): 1155
Pyrop
Gerundete rotviolette Kristalle aus dem Wüstensand, Bildbreite = 38 mm, Fundort: Conception Bay bei der Walvis Bay, Erongo Region, Namibia.
Copyright: Manfred Früchtl; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B002620, Donator: Manfred Seitz
Location: Namibia/Erongo, Region/Walvis Bay, Kreis/Conception Bay
Mineral: Pyrope
Image: 1356297689
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Pyrop (SNr: B002620)  D

Gerundete rotviolette Kristalle aus dem Wüstensand, Bildbreite = 38 mm, Fundort: Conception Bay bei der Walvis Bay, Erongo Region, Namibia.
Collection: Lithothek der Münchener Micromounter
Copyright: Manfred Früchtl
Contribution: Münchener Micromounter 2012-12-23
Locality: Conception Bay / Walvis Bay, Kreis / Erongo, Region / Namibia

You find additional specimen at the Geolitho Museum

Collectors Summary

Color Blood rot, orange rot, purpurrot, rosa, schwarz rot
Streak color weiß
Hardness (Mohs) 7.5
Solubility + HF nur
Crystal System kubisch, Ia3d

Additional information / Summary

Siehe auch Mineralienportrait: Granat - Pyrop

Chemism

Chemical formula

{Mg3}[Al2](Si3)O12

Chemical composition

Aluminium, Magnesium, Silicium, Sauerstoff

Unit weight: 403.1280064 u; Number of atoms in the formula: 20

Info

Empirical formula:

{Mg3}[Al2](Si3)O12

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

47.63

12

60.00

15.9994300

191.9931600
Magnesium

Mg

18.09

3

15.00

24.3050600

72.9151800
Aluminium

Al

13.39

2

10.00

26.9815382

53.9630764
Silicon

Si

20.90

3

15.00

28.0855300

84.2565900

Analysis wt%

SiO2 : 41.97, Al2O3 : 21.73, Cr2O3 : 0.72, Fe2O3 : 2.36, FeO : 6.17, MnO : 0.97, MgO : 20.45, CaO : 5.52 (Ref: Veda Priod.Praha,36)

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.08-010

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

Classification by Hölzel

9.AC.100

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.01

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

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

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

Optical Properties

Color

Blood rot, orange rot, purpurrot, rosa, schwarz rot

Streak color

weiß

Diaphaneity (Transparency)

transparent bis teilweise durchscheinend

RI value α / ω / n

1.74

Ri mean

1.74

2V angle

Isotropisch

Optical Data Luminescence

Color LW-UV (365nm)

  

orangerot

Most Common Activator

Mn2+

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

230

Space Group

Ia3d

Cell parameters a (Å)

11.46

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

Volume (ų)

1505.06

X-Ray Powder Diffraction

2.865(60),
2.562(100),
2.443(40),
2.339(20),
2.247(20),
1.859(20),
1.589(30),
1.531(50)
XRD chart Pyrope

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)

7.5

VHN (Hardness Vickers)

1450 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.65 - 3.84 / Durchschnittlich = 3.74

3.558 ( ρ calc. Mineralienatlas )

Instability

+ HF nur

(Co-)Type locality

(Co-)Type locality

Type material

Mineralogische Sammlung der TU Bergakademie Freiberg

Collection number of type material

100334 - 100339 / K 97

Paragenesis of type material

Konglomerat von kalkigem und tonigem Kalk-Mergel mit Serpentin, Opal, Gneis, Glimmerschiefer, Granulit, Granit, Calcit, Gips und verkieseltem Holz

Preface

Name from

dem griechischen pyropos - feuerähnlich

Author (Name, Year)

Werner, 1803

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 666

Yongtao Zou, Steeve Gréaux, Tetsuo Irifune, Matthew L. Whitaker, Toru Shinmei, Yuji Higo: Thermal equation of state of Mg3Al2Si3O12 pyrope garnet up to 19 GPa and 1,700 K. Physics and Chemistry of Minerals Volume 39, Number 7 (2012), S. 589-598. (an synth. Kristall untersucht).

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

 
Garnet supergroup
{X3}[Y2](Z3)φ12
 
 

 
 
Silicate garnets; Garnet group (Z charge 12)
 
 
 

 
 
 
Almandine
{Fe2+3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Andradite
{Ca3}[Fe3+2](Si3)O12
kubisch
Ia3d

 
 
 
Calderite
{Mn2+3}[Fe3+2](Si3)O12
kubisch
Ia3d

 
 
 
Eringaite
{Ca3}[Sc2](Si3)O12
kubisch
Ia3d

 
 
 
Goldmanite
{Ca3}[V3+2](Si3)O12
kubisch
Ia3d

 
 
 
Grossular
{Ca3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Hutcheonite
{Ca3}[Ti2](SiAl2)O12
kubisch
Ia3d

 
 
 
Knorringite
{Mg3}[Cr3+2](Si3)O12
kubisch
Ia3d

 
 
 
Majorite
{Mg3}[MgSi](Si3)O12
kubisch
 

 
 
 
Menzerite-(Y)
{Y2Ca}[Mg2](Si3)O12
kubisch
Ia3d

 
 
 
Momoiite
{Mn2+3}[V3+2](Si3)O12
kubisch
Ia3d

 
 
 
Morimotoite
{Ca3}[TiFe2+](Si3)O12
kubisch
Ia3d

 
 
 
Pyrope
{Mg3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Spessartine
{Mn2+3}[Al2](Si3)O12
kubisch
Ia3d

 
 
 
Uvarovite
{Ca3}[Cr3+2](Si3)O12
kubisch
Ia3d

Refresh list

Actuality: 13. Sep 2024 - 02:41:51

Varieties

Rhodolite

Umbalite

rosa bis violette Pyrop-Varietät, 1978 beschrieben vom Fluss Umba, Tansania

Other languages

Hungarian

Pirop

Polish

Pirop

Lithuanian

Piropas

Spanish

Piropo

Dutch

Pyroop

German

Pyrop

English

Pyrope

French

Pyrope

Russian

Пироп

Ukrainian

Піроп

Japanese

苦礬柘榴石

Traditional Chinese

鎂鋁榴石

Simplified Chinese

镁铝榴石

Alternative Name

Arizona Ruby

Bhmischer Granat

Bohemian Garnet

Böhmischer Granat

Cape Ruby

Colorado Ruby

Elie Ruby

Greenlandite (of Klaproth)

Greenlandite (of Klaproth)

Pyrope Garnet

Italian

Vogesita

Vogesite

CNMNC symbol

Symbol

Prp

Rock part of

 
Rocks

 
 
metamorphic rocks and metasediments

 
 
 
high-grade metamorphic rock

 
 
 
 
high P/T metamorphic rock

 
 
 
 
 
eclogite  

 
 
 
rock names based on modal composition of metamorphic rocks

 
 
 
 
ferromagnesian metamorphic rocks

 
 
 
 
 
eclogite  

Refresh list | View legend

Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 13. Sep 2024 - 02:41:52

Locations with GPS information

IDs

GUSID (Global unique identifier short form) zCFAFbYQt0SkPa6D8O0pjA
GUID (Global unique identifier) 154021CC-10B6-44B7-A43D-AE83F0ED298C
Database ID 3170