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Footemineite

Pictures (10 Images total)

Footemineit
Views (File:
1214890994
): 832
Footemineit
Bildbreite: 2 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Footemineite
Image: 1214890994
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Footemineit

Bildbreite: 2 mm; Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2008-07-01
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Footemineit
Views (File:
1410715479
): 420
Footemineit
Bildbreite: 1,2 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Footemineite
Image: 1410715479
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Footemineit

Bildbreite: 1,2 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2014-09-14
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Footemineit
Views (File:
1410715567
): 624
Footemineit
Bildbreite: 1,3 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Footemineite
Image: 1410715567
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Footemineit

Bildbreite: 1,3 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2014-09-14
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Footemineit
Views (File:
1203969525
): 770
Footemineit
Fundort: Foote Mine, Kings Mountains, Cleveland Co., North Carolina, USA; BB: 1,8mm
Copyright: Mabu; Contribution: Mabu
Collection: Mabu
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Footemineite
Image: 1203969525
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Footemineit

Fundort: Foote Mine, Kings Mountains, Cleveland Co., North Carolina, USA; BB: 1,8mm
Collection: Mabu
Copyright: Mabu
Contribution: Mabu 2008-02-25
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Footemineit
Views (File:
1282666715
): 504
Footemineit
Zwillingskristall, Kristallgröße: 1,8 mm, Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Jason B. Smith; Contribution: thdun5
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Footemineite
Image: 1282666715
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Footemineit

Zwillingskristall, Kristallgröße: 1,8 mm, Fundort: Foote Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Jason B. Smith
Contribution: thdun5 2010-08-24
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA
Footemineit
Views (File:
1410865413
): 200
Footemineit
Bildbreite: 2 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried; Contribution: Hg
Location: USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)
Mineral: Footemineite
Image: 1410865413
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Footemineit

Bildbreite: 2 mm, Fundort: Foote Lithium Co. Mine, Kings Mountain District, Cleveland Co., North Carolina, USA
Copyright: Stephan Wolfsried
Contribution: Hg 2014-09-16
Locality: Foote Mine (Foote Lithium Co. Mine) / Kings Mountain District / Cleveland Co. / North Carolina / USA

Collectors Summary

Color gelb
Streak color weiß
Lustre Glasglanz bis schwacher Perlmuttglanz
Hardness (Mohs) 4 - 5
Cleavages gut (0-11) und (100)
Morphology Das Mineral bildet leistenartige, undeutliche bis fassförmige Kristalle bis zu 1,5 mm Länge und 1mm Durchmesser; typisch gebogene Kristalle führen zum Fass-artigen Aussehen; die oft verzwillingten Kristalle sind denen von Zanazziit außerordentlich ähnlich.

Chemism

Chemical formula

Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4·6H2O

Chemical composition

Beryllium, Calcium, Mangan, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 1136.8461179 u; Number of atoms in the formula: 67

Info

Empirical formula:

Ca2MnMn2Mn2Be4(PO4)6(OH)4·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.42

16

23.88

1.0079470

16.1271520
Beryllium

Be

3.17

4

5.97

9.0121823

36.0487292
Oxygen

O

47.85

34

50.75

15.9994300

543.9806200
Phosphorus

P

16.35

6

8.96

30.9737612

185.8425672
Calcium

Ca

7.05

2

2.99

40.0784000

80.1568000
Manganese

Mn

24.16

5

7.46

54.9380499

274.6902495

Analysis wt%

P2O5 : 36.59, SiO2 : 0.42, Fe2O3 : 0.62, FeO : 2.77, BeO : 9.54, MnO : 26.16, CaO : 9.43, H2O : 13.10 (Ref: American Mineralogist 2008)

Strunz 9th edition incl. updates

8.DA.10

8: Phosphate, Arsenate, Vanadate
D: Phosphate, mit weiteren Anionen, mit H2O
A: Mit kleinen (und gelegentlich größeren) [Kationen]
10:Roscherit-Gruppe

Lapis Classification

VII/D.01-065

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
D: Wasserhaltige Phosphate, mit fremden Anionen
1: Vorwiegend kleine Kationen: Be-Li

Classification by Hölzel

8.DA.275

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
A: Phosphates, C small

IMA status

anerkannt 09/2006

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb

Streak color

weiß

Diaphaneity (Transparency)

transparent

Lustre

Glasglanz bis schwacher Perlmuttglanz

max. Birefringence

0.014
Birefringence chart\! Footemineite title=Birefringence chart Footemineite

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

1.620

RI value β

1.627

RI value γ / ε

1.634

Ri mean

1.627

2V angle

Biaxial (-) 80°

Crystallography

Cell parameters a (Å)

6.788

Cell parameters b (Å)

9.972

Cell parameters c (Å)

10.014

Cell parameters a/b or c/a

0.681

Cell parameters c/b

1.004

Cell parameters α

73.83

Cell parameters β

85.33

Cell parameters γ

87.43

Z

1

Volumne (ų)

648.7

X-Ray Powder Diffraction

9.393 (53), 5.922(100), 4.799(26), 3.173(44), 2.983(14), 2.787(35), 2.413(14)

Morphology

Das Mineral bildet leistenartige, undeutliche bis fassförmige Kristalle bis zu 1,5 mm Länge und 1mm Durchmesser; typisch gebogene Kristalle führen zum Fass-artigen Aussehen; die oft verzwillingten Kristalle sind denen von Zanazziit außerordentlich ähnlich.

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4 - 5

VHN (Hardness Vickers)

340 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.87 ber.

2.91 ( ρ calc. Mineralienatlas )

Cleavages

gut (0-11) und (100)

Tenacity

spröde

(Co-)Type locality

(Co-)Type locality

USA/North Carolina/Cleveland Co./Kings Mountain District/Foote Mine (Foote Lithium Co. Mine)

Paragenesis of type material

Albit, Analcim, Eosphorit, Siderit, Rhodochrosit, Fairfieldit, Fluorapatit, Quarz, Milarit, Pyrit

Preface

Name from

Name nach der Typlokalität

References

Mineralien Welt 03/09, Steffen Jahn, Neue Mineralien

Other languages

German

Footemineit

Spanish

Footemineita

English

Footemineite

Russian

Футмайнит

Alternative Name

Roscherite-1A

Triclinic Roscherite

CNMNC (IMA)-Number

IMA 2006-029

CNMNC symbol

Symbol

Ftm

Locations with GPS information