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Gillespite (Gillespit)

Pictures (3 Images total)

Gillespit
Views (File:
1478013239
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Gillespit
mit Meierit-Einschlüssen (graublau). Gun Claim, Itsy Mountains/Yukon, Canada; Größe 3,5 x 2,5 cm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Kanada/Yukon-Territorium/Watson Lake Mining District/Itsi Mt./Wilson Lake/Gun Claim
Mineral: Gillespite
Image: 1478013239
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Gillespit  D

mit Meierit-Einschlüssen (graublau). Gun Claim, Itsy Mountains/Yukon, Canada; Größe 3,5 x 2,5 cm
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2016-11-01
Locality: Gun Claim / Wilson Lake / Itsi Mt. / Watson Lake Mining District / Yukon-Territorium / Kanada
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
Gillespit
Views (File:
1641115070
): 112
Gillespit
Gillespit, Gun Claim, Wilson Lake, Mt. Itsi, Watson Lake Mining Distr., Yukon, Canada, 37 x 25 x 20 mm
Copyright: Embarak; Contribution: Embarak
Collection: Embarak
Location: Kanada/Yukon-Territorium/Watson Lake Mining District/Itsi Mt./Wilson Lake/Gun Claim
Mineral: Gillespite
Image: 1641115070
License: Usage for Mineralienatlas project only
Gillespit

Gillespit, Gun Claim, Wilson Lake, Mt. Itsi, Watson Lake Mining Distr., Yukon, Canada, 37 x 25 x 20 mm
Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2022-01-02
Locality: Gun Claim / Wilson Lake / Itsi Mt. / Watson Lake Mining District / Yukon-Territorium / Kanada

Collectors Summary

Color rot
Hardness (Mohs) 3
Solubility +++ HCl
Crystal System tetragonal, P4/ncc

Chemism

Chemical formula

BaFe2+Si4O10

Chemical composition

Barium, Eisen, Silicium, Sauerstoff

Unit weight: 465.50932 u; Number of atoms in the formula: 16

Info

Empirical formula:

BaFeSi4O10

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

34.37

10

62.50

15.9994300

159.9943000
Silicon

Si

24.13

4

25.00

28.0855300

112.3421200
Iron

Fe

12.00

1

6.25

55.8452000

55.8452000
Barium

Ba

29.50

1

6.25

137.3277000

137.3277000

Analysis wt%

SiO2 : 49.98, Al2O3 : 1.51, FeO : 14.61, CaO : 0.60, BaO : 32.38 (Ref: American Mineralogist 58)

Strunz 9th edition incl. updates

9.EA.05

9: Silikate (Germanate)
E: Schichtsilikate (Phyllosilikate)
A: Einfache Tetraedernetze mit 4-, 5-, (6-), und 8 beteiligten Ringen
05:Gillespit-Gruppe

Lapis Classification

VIII/H.02-040

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

Classification by Hölzel

9.EA.220

9: SILICATES
E: Phyllosilicates
A: tetragonal & pseudotetragonal Phyllosilicates
2: Cuprorivait-Group

Dana 8th edition

71.02.03.02

71: Phyllosilicate Minerals
02: Phyllosilicates Phyllosilicate Sheets of Six-Membered Rings with 2:1 Layers
03: Cuprorivaite group

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

rot

max. Birefringence

0.002
Birefringence chart\! Gillespite title=Birefringence chart Gillespite

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

1.621

RI value γ / ε

1.619

Ri mean

1.620

2V angle

Uniaxial (-)

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

130

Space Group

P4/ncc

Cell parameters a (Å)

7.495

Cell parameters b (Å)

-

Cell parameters c (Å)

16.050

Cell parameters a/b or c/a

2.141

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

901.609

X-Ray Powder Diffraction

8.02(50),
4.422(60),
3.537(30),
3.396(100),
3.199(70),
3.093(30),
2.650(30),
2.388(30)
XRD chart Gillespite

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)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.402 (gemessen)

3.429 ( ρ calc. Mineralienatlas )

Instability

+++ HCl

(Co-)Type locality

(Co-)Type locality

USA/Alaska/Yukon-Koyukuk Census Area/Alaska Range/Dry Delta

Preface

Author (Name, Year)

Schaller, 1922

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 287

Other languages

German

Gillespit

Spanish

Gillespita

English

Gillespite

French

Gillespite

Russian

Джиллеспит

CNMNC symbol

Symbol

Gls

Locations with GPS information