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Cuspidine (Cuspidin)

Pictures (15 Images total)

Cuspidin
Views (File:
1292116210
): 1184
Cuspidin
Größe: 2,28 mm, Fundort: Ariccia, Albaner Berge (Colli Albani), Rom, Provinz, Latium (Lazio), Region, Italien
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Italien/Latium (Lazio), Region/Rom, Provinz/Ariccia
Mineral: Cuspidine
Image: 1292116210
Rating: 10 (votes: 1)
License: Usage for Mineralienatlas project only
Cuspidin

Größe: 2,28 mm, Fundort: Ariccia, Albaner Berge (Colli Albani), Rom, Provinz, Latium (Lazio), Region, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-12-12
Locality: Ariccia / Rom, Provinz / Latium (Lazio), Region / Italien
Cuspidin
Views (File:
1272298263
): 1707
Cuspidin
Größe: 9,08 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Cuspidine
Image: 1272298263
Rating: 9 (votes: 2)
License: Usage for Mineralienatlas project only
Cuspidin

Größe: 9,08 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Copyright: Matteo Chinellato
Contribution: Hg 2010-04-26
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Cuspidin
Views (File:
1320836935
): 831
Cuspidin
Größe: 2,9 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Enrico Bonacina; Contribution: Hg
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Cuspidine
Image: 1320836935
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Cuspidin

Größe: 2,9 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Copyright: Enrico Bonacina
Contribution: Hg 2011-11-09
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Cuspidin
Views (File:
1320836994
): 1364
Cuspidin
Größe: 2 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Enrico Bonacina; Contribution: Hg
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Cuspidine
Image: 1320836994
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Cuspidin

Größe: 2 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Copyright: Enrico Bonacina
Contribution: Hg 2011-11-09
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Cuspidin
Views (File:
1297380861
): 1419
Cuspidin
Größe: 0,6 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Enrico Bonacina; Contribution: Hg
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Cuspidine
Image: 1297380861
Rating: 7.67 (votes: 3)
License: Usage for Mineralienatlas project only
Cuspidin

Größe: 0,6 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Copyright: Enrico Bonacina
Contribution: Hg 2011-02-11
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Cuspidin
Views (File:
1289208311
): 379
Cuspidin
Bildbreite: 1,88 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex/Monte Somma
Mineral: Cuspidine
Image: 1289208311
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Cuspidin

Bildbreite: 1,88 mm; Fundort: Monte Somma, Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-11-08
Locality: Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 5.00 - 6.00
Solubility +++ Säuren, CH3COOH
Crystal System monoklin, P21/a

Chemism

Chem­ical formula

Ca4Si2O7(F,OH)2

Chem­ical com­po­si­tion

Calcium, Silicium, Fluor, Sauerstoff, Wasserstoff

Unit weight: 365.481963375 u; Number of atoms in the formula: 15.5

Info

Empirical formula:

Ca4Si2O7(F0.75(OH)0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.14

0.5

3.23

1.0079470

0.5039735

Oxygen

O

32.83

7.5

48.39

15.9994300

119.9957250

Fluorine

F

7.80

1.5

9.68

18.9984033

28.4976049

Silicon

Si

15.37

2

12.90

28.0855300

56.1710600

Calcium

Ca

43.86

4

25.81

40.0784000

160.3136000

Anal­y­sis wt%

SiO2 : 31.39, R2O3 : 1.53, CaO : 59.16, F : 10.05, CO2 : 0.62, H2O : 0.44 (Ref: Hintze, Handbuch der Mineralogie, 1904-1974)

Strunz 9th edi­tion incl. updates

9.BE.17

9: Silikate (Germanate)
B: Gruppensilikate (Sorosilikate)
E: Si2O7 Gruppen mit zusätzlichen Anionen; Kationen in oktahedraler [6] und größerer Koordination
17:Cuspidin-Gruppe

Lapis Clas­sifica­tion

VIII/C.09-010

VIII: SILIKATE
C: Gruppensilikate
9: Gruppensilikate [Si2O7] 6-, mit tetraederfremden Anionen (O,OH,F)

Clas­sifica­tion by Hölzel

9.BE.100

9: SILICATES
B: Sorosilicates
E: Cuspidine-Tilleyite-Group

Dana 8th edi­tion

56.02.04.03

56: Sorosilicates Sorosilicate Si2O7 Groups and O, OH, F. and H2O
02: Sorosilicates Sorosilicate Si2O7 Groups and O, OH, F. and H2O with cations in [4] and/or >[4] coordination
04: Cuspidine - Wohlerite group

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Classification

Wöhlerite group

Optical Properties

Color

farblos, weiß

Streak color

weiß

max. Birefrin­gence

0.011

Birefringence chart\! Cuspidine title=Birefringence chart Cuspidine

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.591

RI value β

1.596

RI value γ / ε

1.602

Ri mean

1.596

2V angle

Biaxial (+) 76°

Optical Data Luminescence

Color LW-UV (365nm)

 

gelb

MW-UV (320nm)

 

lachsrosa

Color SW-UV (254nm)

 

orangegelb

SW-UV Intensity

mittel

LW-UV Other Col­ors

   

bläulich weiß, gelblich weiß

MW-UV Other Col­ors

   

blassrosa weiß, lachsrosa

SW-UV Other Col­ors

   

gelblich weiß, blassrosa weiß

Color SW-UV After­glow (254nm)

 

orangegelb

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell param­e­ters a (Å)

10.93

Cell param­e­ters b (Å)

10.57

Cell param­e­ters c (Å)

7.57

Cell param­e­ters a/b or c/a

1.034

Cell param­e­ters c/b

0.716

Cell param­e­ters α

90°

Cell param­e­ters β

110.12

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

821.192

X-Ray Pow­der Diffrac­tion

3.363(10),
3.259(30),
3.062(100),
3.034(30),
2.943(40),
2.900(30),
2.873(30),
2.018(20)

XRD chart Cuspidine

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)

5.00 - 6.00

VHN (Hard­ness Vick­ers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.95 (gemessen)

2.956 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren, CH3COOH

Preface

Author (Name, Year)

Scacchi, 1876

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 171

IMA group assignments

Other languages

German

Cuspidin

Spanish

Cuspidina

English

Cuspidine

French

Cuspidine

Russian

Куспидин

Simplified Chinese

枪晶石

Traditional Chinese

槍晶石

CNMNC symbol

Symbol

Csp

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Куспидин

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Cuspidin
Crystal-Treasure.com - search for: Cuspidin
Bosse - search for: Cuspidin
Edelsteine Neuburg - Gundolf Fischer - search for: Cuspidin
Geolitho marketplace, by and for collectors - search for: Cuspidin

Locations with GPS information