https://www.mineral-bosse.de
https://www.mineraliengrosshandel.com
https://www.mineralbox.biz
https://www.edelsteine-neuburg.de
'._('einklappen').'
 

Fersmite

Pictures (40 Images total)

Fersmit
Views (Image: 1632218888): 37
Fersmit (SNr: AR-Fers-1-1-1)

Prismatischer, gelbbrauner Fersmitkristall aus dem Albitit der Alpe Rosso, gefunden in Orcesco am Ende der Seilbahn an der Erzverladestelle (nahe der Eisenbahnverbindung zwischen Druogno und Coimo)...

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2021-09-21
Locality: Orcesco / Druogno / Vigezzo, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Fersmit
Views (Image: 1263724508): 1418
Fersmit

Größe: 1,15 mm; Fundort: Alpe Rosso, Orcesco, Val Vigezzo, Piemont, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-01-17
Locality: Alpe Rosso / Orcesco / Druogno / Vigezzo, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Fersmit
Views (Image: 1279374644): 723
Fersmit

Größe: 2 mm; Fundort: Baveno, Verbano-Cusio-Ossola Provinz, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2010-07-17
Locality: Baveno / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Fersmit
Views (Image: 1275255372): 789, Rating: 7.5
Fersmit

Größe: 0,88 mm; Fundort: Alpe Rosso, Orcesco, Val Vigezzo, Piemont, Italien

Copyright: Matteo Chinellato
Contribution: Hg 2010-05-30
Locality: Alpe Rosso / Orcesco / Druogno / Vigezzo, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Fersmit
Views (Image: 1274191719): 589
Fersmit

Größe: 1,04 mm; Fundort: Alpe Rosso, Orcesco, Val Vigezzo, Piemont, Italien

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-05-18
Locality: Alpe Rosso / Orcesco / Druogno / Vigezzo, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien
Fersmit
Views (Image: 1234884558): 479
Fersmit

FO:Alpe Rosso Halde bei Orcesco Val Vigezzo BB 3,3 mm

Collection: pikosteine
Copyright: pikosteine
Contribution: pikosteine 2009-02-17
Locality: Alpe Rosso / Orcesco / Druogno / Vigezzo, Valle (Tal) / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien

Collectors Summary

Color bräunlichschwarz, dunkelbraun, schwarz
Streak color graulich braun
Lustre Harzglanz, Glasglanz, Halbmetallglanz
Hardness (Mohs) 4.25
Crystal System orthorhombisch, Pbcn

Chemism

Chem­ical formula

(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6

Empir­ical formula (anal­y­sis)

CaNb2O6

Chem­ical com­po­si­tion

Calcium, Cerium, Natrium, Niob, Tantal, Titan, Fluor, Sauerstoff, Wasserstoff

Unit weight: 321.887744 u; Number of atoms in the formula: 9

Info

Empirical formula:

CaNb2O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

29.82

6

66.67

15.9994300

95.9965800

Calcium

Ca

12.45

1

11.11

40.0784000

40.0784000

Niobium

Nb

57.73

2

22.22

92.9063820

185.8127640

Strunz 9th edi­tion incl. updates

4.DG.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
G: Mit großen (± mittelgroßen) [Kationen]; Ketten kantenverknüpfter Oktaeder
05:Euxenit-Gruppe

Lapis Clas­sifica­tion

IV/D.19-030

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)

Clas­sifica­tion by Hölzel

4.DJ.130

4: OXIDES
D: Dioxides
J: Titanates, Niobates and Tantalates, C large, V medium ò 2
1: Euxenite-Group

Dana 8th edi­tion

08.03.03.01

08: Multiple Oxides with Nb, Ta, and Ti
03: Multiple Oxides with Nb, Ta, and Ti where A (B2O6)

IMA sta­tus

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

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

bräunlichschwarz, dunkelbraun, schwarz

Streak color

graulich braun

Diaphane­ity (Trans­parency)

teilweise durchscheinend bis opak

Lus­tre

Harzglanz, Glasglanz, Halbmetallglanz

max. Birefrin­gence

0.12

Birefringence chart\! Fersmite title=Birefringence chart Fersmite

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

2.07

RI value β

2.10 Li

RI value γ / ε

2.19

Ri mean

2.120

2V angle

Biaxial (+) 20° - 25° (gemessen) 33.6 (berechnet)

Absorp­tion

Z > X = Y

Pleochro­ism

farblos, grünlichgelb, olivegelb

Optical Data Luminescence

Color LW-UV (365nm)

 

gelblich grün

Color SW-UV (254nm)

 

blau

SW-UV Intensity

stark

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbcn

Cell param­e­ters a (Å)

14.926

Cell param­e­ters b (Å)

5.752

Cell param­e­ters c (Å)

5.204

Cell param­e­ters a/b or c/a

2.595

Cell param­e­ters c/b

0.905

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

446.786

X-Ray Pow­der Diffrac­tion

5.345(10),
3.762(20),
3.049(100),
2.493(10),
1.967(10),
1.527(10),
1.211(10),
1.183(10)

XRD chart Fersmite

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)

4.25

VHN (Hard­ness Vick­ers)

230 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.69 - 4.79 (gemessen) 4.75 (berechnet)

4.785 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Bohnstedt-Kupletskaya & Burova, 1946

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 197

American Mineralogist 55 (1970), 90-97 -[Chemie]

Other languages

German

Fersmit

Spanish

Fersmita

English

Fersmite

French

Fersmite

Russian

Ферсмит

Simplified Chinese

铌钙矿

Japanese

フェルスマイト

CNMNC symbol

Symbol

Fsm

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Ферсмит

Mineral Dealer

German pages

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

Locations with GPS information