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Sanbornite (Sanbornit)

Pictures (5 Images total)

Sanbornit
Views (File:
1274647118
): 1131
Sanbornit
Größe: 60x35 mm; Fundort: Rush Creek, Fresno Co., Kalifornien, USA
Copyright: John Sobolewski; Contribution: slugslayer
Location: USA/Kalifornien (California)/Fresno Co./Rush Creek
Mineral: Sanbornite
Image: 1274647118
License: Usage for Mineralienatlas project only
Sanbornit

Größe: 60x35 mm; Fundort: Rush Creek, Fresno Co., Kalifornien, USA
Copyright: John Sobolewski
Contribution: slugslayer 2010-05-23
Locality: Rush Creek / Fresno Co. / Kalifornien (California) / USA
Gillespit (rot) in Sanbornit (weiß)
Views (File:
1478016083
): 1288
Gillespit (rot) in Sanbornit (weiß)
Trumbull Peak,Incline,Mariposa Co./Californien USA; Größe 3,7 x 2 cm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: USA/Kalifornien (California)/Mariposa Co./Incline/Trumbull Peak
Mineral: Gillespite, Sanbornite
Image: 1478016083
License: Usage for Mineralienatlas project only
Gillespit (rot) in Sanbornit (weiß)

Trumbull Peak,Incline,Mariposa Co./Californien USA; Größe 3,7 x 2 cm
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2016-11-01
Locality: Trumbull Peak / Incline / Mariposa Co. / Kalifornien (California) / USA
Sanbornit
Views (File:
1568628603
): 359
Sanbornit
USA/Kalifornien (California)/Mariposa Co./Incline. Bildbreite 1,2 mm Kristallflächen der Form 001, 100, 110
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: USA/Kalifornien (California)/Mariposa Co./Incline
Mineral: Sanbornite
Image: 1568628603
License: Usage for Mineralienatlas project only
Sanbornit

USA/Kalifornien (California)/Mariposa Co./Incline. Bildbreite 1,2 mm Kristallflächen der Form 001, 100, 110
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-09-16
Locality: Incline / Mariposa Co. / Kalifornien (California) / USA
Sanbornit
Views (File:
1568628876
): 342
Sanbornit
USA/Kalifornien (California)/Mariposa Co./Incline. Bildbreite 1 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: USA/Kalifornien (California)/Mariposa Co./Incline
Mineral: Sanbornite
Image: 1568628876
License: Usage for Mineralienatlas project only
Sanbornit

USA/Kalifornien (California)/Mariposa Co./Incline. Bildbreite 1 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-09-16
Locality: Incline / Mariposa Co. / Kalifornien (California) / USA
Sanbornit
Views (File:
1643374109
): 80
Sanbornit
Esquire No. 1 Claim, Rush Creek, Fresno Co., Kalifornien, US. BB=5,5cm.
Copyright: Doc Diether; Contribution: Doc Diether
Collection: Doc Diether
Location: USA/Kalifornien (California)/Fresno Co./Rush Creek/Esquire No. 1 Claim
Mineral: Sanbornite
Image: 1643374109
License: Usage for Mineralienatlas project only
Sanbornit

Esquire No. 1 Claim, Rush Creek, Fresno Co., Kalifornien, US. BB=5,5cm.
Collection: Doc Diether
Copyright: Doc Diether
Contribution: Doc Diether 2022-01-28
Locality: Esquire No. 1 Claim / Rush Creek / Fresno Co. / Kalifornien (California) / USA

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 5
Solubility +++ Säuren
Crystal System orthorhombisch, Pmcn

Chemism

Chemical formula

BaSi2O5

Chemical composition

Barium, Silicium, Sauerstoff

Unit weight: 273.49591 u; Number of atoms in the formula: 8

Info

Empirical formula:

BaSi2O5

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

29.25

5

62.50

15.9994300

79.9971500
Silicon

Si

20.54

2

25.00

28.0855300

56.1710600
Barium

Ba

50.21

1

12.50

137.3277000

137.3277000

Analysis wt%

SiO2 : 44.16, Al2O3 : 0.41, SrO : 0.80, BaO : 54.04, H2O : 0.69 (Ref: American Mineralogist 58)

Strunz 9th edition incl. updates

9.EF.10

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
F: Einfache Netze aus sechsfach-Ringen, verbunden über M~[4], M~[8], etc.
10:Sanbornit-Gruppe

Lapis Classification

VIII/H.02-050

VIII: SILIKATE
H: Schichtsilikate
2: tetragonale oder pseudotetragonale Schichtstrukturen [Si4O10] 4- u.a.

Classification by Hölzel

9.EA.400

9: SILICATES
E: Phyllosilicates
A: tetragonal & pseudotetragonal Phyllosilicates
4: Natrosilite-Group

Dana 8th edition

74.03.04.01

74: Phyllosilicates Phyllosilicate Modulated Layers
03: Phyllosilicates Phyllosilicate Modulated Layers with joined strips
04: Ba phyllosilicates

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß

Streak color

weiß

max. Birefringence

0.027
Birefringence chart\! Sanbornite title=Birefringence chart Sanbornite

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

1.598

RI value β

1.617

RI value γ / ε

1.625

Ri mean

1.613

2V angle

Biaxial (-) 67°

Optical Data Luminescence

Color LW-UV (365nm)

  

gelblich weiß

Color SW-UV (254nm)

  

gelblich weiß

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pmcn

Cell parameters a (Å)

7.69

Cell parameters b (Å)

4.63

Cell parameters c (Å)

13.53

Cell parameters a/b or c/a

1.661

Cell parameters c/b

2.922

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

481.732

X-Ray Powder Diffraction

6.79(30),
5.08(30),
3.97(100),
3.422(50),
3.342(70),
3.092(70),
2.720(50),
2.130(40)
XRD chart Sanbornite

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

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.712 (gemessen)

3.771 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/Mariposa Co./Incline/Trumbull Peak

Preface

Author (Name, Year)

Rogers, 1932

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 703

Other languages

German

Sanbornit

Spanish

Sanbornita

English

Sanbornite

French

Sanbornite

Russian

Санборнит

Traditional Chinese

矽鋇石

Simplified Chinese

硅钡石

CNMNC symbol

Symbol

Sabn

Locations with GPS information