Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Footemineite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
01915880014947888695041.jpg
Footemineite

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
05348170017065761263616.jpg
Footemineite

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
02229920015421685367010.jpg
Footemineite, etc.

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
01915880014947888695041.jpg
Footemineite

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
00892620017055890678797.jpg
Footemineite

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
02625400015421684646267.jpg
Footemineite, etc.

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
01915880014947888695041.jpg
Footemineite

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
00892620017055890678797.jpg
Footemineite

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
Hide all sections | Show all sections

About FootemineiteHide

02228870014947888661861.jpg
One more view of the quarry in May, 1968

Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
Formula:
Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2O
Colour:
Yellow
Lustre:
Vitreous, Pearly
Hardness:
4½ - 5
Specific Gravity:
2.873 (Calculated)
Crystal System:
Triclinic
Name:
Named for the type locality, Foote Mine, North Carolina, USA.
Dimorph of:
Roscherite
Isostructural with:
Atencioite
Roscherite Group.


Unique IdentifiersHide

Mindat ID:
30765
Long-form identifier:
mindat:1:1:30765:3
GUID
(UUID V4):
d287a981-1a9d-4f74-8e0b-31fee2453b2c

IMA Classification of FootemineiteHide

IMA status:
Approved
IMA Formula:
Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O
Approval year:
2006

Classification of FootemineiteHide

Strunz-mindat (2024):
8.DA.10

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
FtmIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of FootemineiteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of FootemineiteHide

Lustre:
Vitreous, Pearly
Transparency:
Transparent
Colour:
Yellow
Streak:
White
Hardness:
4½ - 5 on Mohs scale
Comment:
By analogy with other roscherite-group minerals.
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good on {011} and {100}
Density:
2.873 g/cm3 (Calculated)

Optical Data of FootemineiteHide

Type:
Biaxial (-)
RI values:
nα = 1.620(2) nβ = 1.627(2) nγ = 1.634(2)
2V:
Measured: 080° , Calculated: 089.6°
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
weak r > v or r < v
Pleochroism:
Visible
Comments:
β (brownish yellow) > α = γ (yellow).

Chemistry of FootemineiteHide

Mindat Formula:
Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2O
Elements listed:
Be, Ca, H, Mn, O, P - search for minerals with similar chemistry

Crystallography of FootemineiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 6.742 Å, b = 9.883 Å, c = 9.981 Å
α = 74.12°, β = 86.1°, γ = 87.36°
Ratio:
a:b:c = 0.682 : 1 : 1.01
Unit Cell V:
637.92 ų (Calculated from Unit Cell)
Morphology:
Prismatic to bladed generally rough to barrel-shaped crystals
Twinning:
Twinning is simple, by reflection, with twin boundaries across the length of the crystals.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.393 Å(53)
5.922 Å(100)
4.799 Å(26)
3.173 Å(44)
2.983 Å(14)
2.787 Å(35)
2.413 Å(14)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites

Type Occurrence of FootemineiteHide

Type Locality:
ⓘ Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
General Appearance of Type Material:
Prismatic to bladed generally rough to barrel-shaped crystals up to about 1.5 mm long and 1 mm in diameter
Place of Conservation of Type Material:
Museu de Geociências, Instituto de Geociências, Universidade
de São Paulo, Rua do Lago, 562, 05508-080, São Paulo, SP, Brazil
Geological Setting of Type Material:
Quartz-microcline-spodumene pegmatite
Associated Minerals at Type Locality:
SideriteRhodochrositeQuartzPyriteMilarite
FluorapatiteFairfielditeEosphoriteAnalcimeAlbite

Synonyms of FootemineiteHide

Relationship of Footemineite to other SpeciesHide

Member of:
Roscherite Group
Other Members of this group:
AtencioiteCa2Fe2+3Mg2Be4(PO4)6(OH)4 · 6H2OTric. 1 : P1
GreifensteiniteCa2Fe2+5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
GuimarãesiteCa2Be4Zn5(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
OkruschiteCa2Mn2+5Be4(AsO4)6(OH)4 · 6H2OMon. 2/m : B2/b
RoscheriteCa2Mn2+5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/m
RuifrancoiteCa2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2OMon. 2/m : B2/b
ZanazziiteCa2Mg5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Footemineite associated with AnalcimeNa(AlSi2O6) · H2O
1 photo of Footemineite associated with FluorapatiteCa5(PO4)3F
1 photo of Footemineite associated with PyriteFeS2

Related Minerals - Strunz-mindat GroupingHide

8.DA.05BearsiteBe2(AsO4)(OH) · 4H2OMon.
8.DA.05MoraesiteBe2(PO4)(OH) · 4H2OMon. m : Bb
8.DA.10RoscheriteCa2Mn2+5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/m
8.DA.10ZanazziiteCa2Mg5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
8.DA.10GreifensteiniteCa2Fe2+5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
8.DA.10AtencioiteCa2Fe2+3Mg2Be4(PO4)6(OH)4 · 6H2OTric. 1 : P1
8.DA.10RuifrancoiteCa2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2OMon. 2/m : B2/b
8.DA.10GuimarãesiteCa2Be4Zn5(PO4)6(OH)4 · 6H2OMon. 2/m : B2/b
8.DA.10OkruschiteCa2Mn2+5Be4(AsO4)6(OH)4 · 6H2OMon. 2/m : B2/b
8.DA.15UraloliteCa2Be4(PO4)3(OH)3 · 5H2OMon. 2/m
8.DA.20WeinebeneiteCaBe3(PO4)2(OH)2 · 4H2OMon. m : Bb
8.DA.25TiptopiteK2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2OHex. 6 : P63
8.DA.40SpenceriteZn4(PO4)2(OH)2 · 3H2OMon. 2/m : P2/b
8.DA.45GlucineCaBe4(PO4)2(OH)4 · 0.5H2O

Fluorescence of FootemineiteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for FootemineiteHide

References for FootemineiteHide

Localities for FootemineiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
    • Itinga
      • Taquaral
Leavens et al. (1990)
USA
 
  • Maine
    • Cumberland County
      • Baldwin
        • West Baldwin
Jim McGlasson collection et al. (Dr. H. Yang )
  • North Carolina
    • Cleveland County
      • Kings Mountain
Atencio et al. (2008)
Quick NavTopAbout FootemineiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 24, 2024 02:36:24 Page updated: April 2, 2024 07:40:03
Go to top of page