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Bermanite

A valid IMA mineral species - grandfathered
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05049020017110451334922.jpg
Bermanite

Cigana claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
03690630014946618854310.jpg
Bermanite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
02799810017078033948858.jpg
Bermanite

El Criollo Mine, Cerro Blanco pegmatite district, Tanti, San Roque District, Punilla Department, Córdoba Province, Argentina
00481270017056433331542.jpg
Bermanite

Cigana claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
05890660014950648887400.jpg
Bermanite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
04871180017055456416423.jpg
Bermanite

El Criollo Mine, Cerro Blanco pegmatite district, Tanti, San Roque District, Punilla Department, Córdoba Province, Argentina
05049020017110451334922.jpg
Bermanite

Cigana claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil
05957820014946983156474.jpg
Bermanite

Hagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
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About BermaniteHide

00108440014950488582498.jpg
Harry and Bessie Berman
Formula:
Mn2+Mn3+2(PO4)2(OH)2 · 4H2O
Colour:
Reddish-brown; yellowish brown to brownish red with red internal reflections in transmitted light
Lustre:
Sub-Vitreous, Resinous, Greasy, Dull
Hardness:
3½
Specific Gravity:
2.84 - 2.85
Crystal System:
Monoclinic
Name:
Named by Cornelius S. Hurlbut in 1936 in honour of Dr. Harry Berman [February 16, 1902 Boston, Massachusetts, USA - August 27, 1944 Prestwick, Scotland], co-author of seventh edition of Dana's System of Mineralogy, systematic mineralogist, early classifier of the structures of silicates, Professor of Mineralogy, Harvard University, Cambridge, Massachusetts, USA.
A late-stage secondary hydrothermal mineral replacing primary phosphate species.

The Mn2+ analogue of magnesiobermanite.

Structurally related to ercitite, mengeite and coralloite (chemically the arsenate analogue of bermanite).


Unique IdentifiersHide

Mindat ID:
634
Long-form identifier:
mindat:1:1:634:7
GUID
(UUID V4):
19392d74-c4c1-4e4f-90c7-0ca11f975b72

IMA Classification of BermaniteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1936
Type description reference:
Hurlbut, C.S., Jr. (1936) A new phosphate, bermanite, occurring with triplite in Arizona. American Mineralogist: 21: 656-661.

Classification of BermaniteHide

Strunz-mindat (2024):
8.DC.20

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
Dana 8th ed.:
42.11.17.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:
19.12.2

19 : Phosphates
12 : Phosphates of Mn

Mineral SymbolsHide

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

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

Physical Properties of BermaniteHide

Lustre:
Sub-Vitreous, Resinous, Greasy, Dull
Transparency:
Transparent, Translucent
Colour:
Reddish-brown; yellowish brown to brownish red with red internal reflections in transmitted light
Comment:
Colour darkens on exposure.
Streak:
Light red brown
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {001}, perfect; on {110}, imperfect.
Density:
2.84 - 2.85 g/cm3 (Measured)    2.87 g/cm3 (Calculated)

Optical Data of BermaniteHide

Type:
Biaxial (-)
RI values:
nα = 1.685 - 1.690 nβ = 1.725 - 1.729 nγ = 1.748 - 1.751
2V:
Measured: 72° to 75°, Calculated: 74°
Birefringence:
0.062
Max Birefringence:
δ = 0.063
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v weak
Optical Extinction:
Y ∧ a = 32.5°, Y ∧ c = -36.5°, X = b.
Pleochroism:
Visible
Comments:
X = Light red
Y = Pale yellow
Z = Deep red

Chemistry of BermaniteHide

Mindat Formula:
Mn2+Mn3+2(PO4)2(OH)2 · 4H2O
Elements listed:
H, Mn, O, P - search for minerals with similar chemistry

Crystallography of BermaniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/b
Cell Parameters:
a = 5.425 Å, b = 19.206 Å, c = 5.425 Å
β = 110.29°
Ratio:
a:b:c = 0.282 : 1 : 0.282
Unit Cell V:
530.17 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals tabular {010}. Sheaflike aggregates and rosettes commonly as thin films or druses on fractures.
Twinning:
Polysynthetic about [101] with composition plane {101} or about [101] with composition plane {101}, common. As reflection twins on {001} about [100], or with two or more individuals twinned on {301} about [100], producing composite fourlings.
Comment:
Pseudo-orthorhombic; Space group: P21

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000544BermaniteKampf A R, Moore P B (1976) The crystal structure of bermanite, a hydrated manganese phosphate American Mineralogist 61 1241-124819760293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.63 Å(100)
5.10 Å(16)
4.82 Å(28)
3.673 Å(19)
3.263 Å(23)
3.062 Å(11)
2.905 Å(36)
1.828 Å(10)
Comments:
ICDD 20-712

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]
47e : [Vanadates, chromates, manganates]
Geological Setting:
In late-stages of phosphate mineralization in complex granite pegmatites.

Type Occurrence of BermaniteHide

Type Locality:
ⓘ 7U7 Ranch (7-U-7 Ranch), Bagdad Mine area, Hillside, Eureka Mining District, Yavapai County, Arizona, USA
General Appearance of Type Material:
Narrow veinlets and in drusy cavities in triplite.
Place of Conservation of Type Material:
Harvard University, Cambridge, Massachusetts, USA: #97863 thru #97865.; U.S. National Museum of Natural History, Washington, D.C., USA: #120405.
Geological Setting of Type Material:
In granite pegmatite.
Associated Minerals at Type Locality:
TripliteStrengitePhosphosideritePaulkerriteLeucophosphite
Hureaulite
Reference:
Hurlbut, C.S., Jr. (1936) A new phosphate, bermanite, occurring with triplite in Arizona. American Mineralogist: 21: 656-661.
Download:
https://rruff.info/rruff_1.0/uploads/AM21_656.pdf

Synonyms of BermaniteHide

Other Language Names for BermaniteHide

German:Bermanit
Spanish:Bermanita

Relationship of Bermanite to other SpeciesHide

Structurally related to group(s):
Arthurite GroupM2+M3+2(TO4)2(OH)2 · 4H2O

Common AssociatesHide

Associated Minerals Based on Photo Data:
49 photos of Bermanite associated with StrengiteFePO4 · 2H2O
43 photos of Bermanite associated with PhosphosideriteFePO4 · 2H2O
18 photos of Bermanite associated with RockbridgeiteFe2+Fe3+4(PO4)3(OH)5
13 photos of Bermanite associated with StewartiteMn2+Fe3+2(PO4)2(OH)2 · 8H2O
11 photos of Bermanite associated with LaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2O
10 photos of Bermanite associated with SerrabrancaiteMnPO4 · H2O
9 photos of Bermanite associated with HureauliteMn2+5(PO3OH)2(PO4)2 · 4H2O
8 photos of Bermanite associated with CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2O
7 photos of Bermanite associated with RobertsiteCa2Mn3+3(PO4)3O2 · 3H2O
7 photos of Bermanite associated with LeucophosphiteKFe3+2(PO4)2(OH) · 2H2O

Related Minerals - Strunz-mindat GroupingHide

8.DC.IanbruceiteZn2(AsO4)(OH) · 3H2OMon. 2/m : P21/b
8.DC.CésarferreiraiteFe2+ Fe3+2(AsO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.FerrivauxiteFe3+Al2(PO4)2(OH)3 · 5H2OTric. 1 : P1
8.DC.05NissoniteCu2Mg2(PO4)2(OH)2 · 5H2OMon. 2/m : B2/b
8.DC.07EuchroiteCu2(AsO4)(OH) · 3H2OOrth. 2 2 2 : P21 21 21
8.DC.10LegranditeZn2(AsO4)(OH) · H2OMon. 2/m : P21/b
8.DC.12StrashimiriteCu8(AsO4)4(OH)4 · 5H2OMon.
8.DC.15ArthuriteCuFe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15EarlshannoniteMn2+Fe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15OjuelaiteZnFe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15WhitmoreiteFe2+Fe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15Cobaltarthurite(Co,Mg)Fe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15BendadaiteFe2+Fe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15KunatiteCuFe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15UM2006-27-PO:FeHZnZnFe3+2(PO4)2(OH)2 · 4H2OMon.
8.DC.15UKI-2006-(PO:AlCuFeH)Fe2+Al3+2(PO4)2(OH)2 · 4H2O
8.DC.17KleemaniteZnAl2(PO4)2(OH)2 · 3H2OMon.
8.DC.20CoralloiteMn2+Mn3+2(AsO4)2(OH)2 · 4H2OTric. 1 : P1
8.DC.20MagnesiobermaniteMgMn3+2(PO4)2(OH)2 · 4H2OMon. 2 : P21
8.DC.22KovdorskiteMg2(PO4)(OH) · 3H2OMon. 2/m : P21/b
8.DC.25FerristrunziteFe3+Fe3+2(PO4)2(OH)3 · 5H2OTric.
8.DC.25FerrostrunziteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric.
8.DC.25MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
8.DC.25MetavivianiteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.25StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.25ZincostrunziteZnFe3+2(PO4)2(OH)2 · 6.5H2OTric. 1 : P1
8.DC.27BerauniteFe3+6(PO4)4O(OH)4 · 6H2OMon. m : Bb
8.DC.27TvrdýiteFe2+Fe3+2 Al3(PO4)4(OH)5(H2O)4 · 2H2OMon. 2/m : B2/b
8.DC.27ZincoberauniteZnFe3+5(PO4)4(OH)5 · 6H2OMon. 2/m : B2/b
8.DC.30GordoniteMgAl2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30LaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30PseudolaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
8.DC.30SigloiteFe3+Al2(PO4)2(OH)3 · 7H2OTric. 1 : P1
8.DC.30StewartiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30UshkoviteMgFe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30FerrolaueiteFe2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30Kastningite(Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30MaghrebiteMgAl2(AsO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30NordgauiteMnAl2(PO4)2(F,OH)2 · 5H2OTric. 1 : P1
8.DC.30Kayrobertsonite[MnAl2(PO4)2(OH)2(H2O)4] · 2H2OTric. 1 : P1
8.DC.30KummeriteMn2+Fe3+Al(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.32TinticiteFe3+3(PO4)2(OH)3 · 3H2OTric. 1 : P1
8.DC.32KamarizaiteFe3+3(AsO4)2(OH)3 · 3H2OTric. 1 : P1
8.DC.35VauxiteFe2+Al2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.37VantasseliteAl4(PO4)3(OH)3 · 9H2OOrth.
8.DC.40CacoxeniteFe3+24AlO6(PO4)17(OH)12 · 75H2OHex. 6/m : P63/m
8.DC.45Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
8.DC.45Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric. 1
8.DC.47KingiteAl3(PO4)2F2(OH) · 7H2OTric.
8.DC.50WavelliteAl3(PO4)2(OH,F)3 · 5H2OOrth. mmm (2/m 2/m 2/m)
8.DC.50AllanpringiteFe3+3(PO4)2(OH)3 · 5H2OMon. 2/m : P21/m
8.DC.50FluorwavelliteAl3(PO4)2(OH)2F · 5H2OOrth. mmm (2/m 2/m 2/m)
8.DC.52KribergiteAl5(PO4)3(SO4)(OH)4 · 4H2OTric. 1 : P1
8.DC.55MapimiteZn2Fe3+3(AsO4)3(OH)4 · 10H2OMon. m : Bm
8.DC.57OgdensburgiteCa2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
8.DC.60Nevadaite(Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2OOrth. mmm (2/m 2/m 2/m)
8.DC.60CloncurryiteCu0.5(VO)0.5Al2(PO4)2F2 · 5H2OMon. 2/m : P21/b
8.DC.62KenngottiteMn2+3Fe3+4(PO4)4(OH)6(H2O)2 Mon. 2/m : P2/b
8.DC.67MolinelloiteCu(H2O)(OH)V4+O(V5+O4)Tric. 1 : P1
8.DC.70WhitecapsiteH16Fe2+5Fe3+14Sb3+6(AsO4)18O16 · 120H2OHex. 6/m : P63/m
8.DC.75HeimitePbCu2(AsO4)(OH)3 · 2H2OMon. 2/m
8.DC.80LedneviteCu[PO3(OH)] · H2OMon. 2/m : P21/b

Fluorescence of BermaniteHide

In UV light:
Not fluorescent

Other InformationHide

Notes:
Soluble in nitric acid.
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 BermaniteHide

References for BermaniteHide

Localities for BermaniteHide

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.
Argentina
 
  • Córdoba Province
    • Cruz del Eje department
      • Candelaria District
Kampf et al. (2010)
    • Punilla Department
      • San Roque District
        • Tanti
Dina (1993)
Demartin et al. (1997)
  • San Luis Province
    • Coronel Pringles Department
      • El Trapiche
        • La Florida
OYARZABAL et al. (H2O)
Australia
 
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
Pring et al. (1992)
    • Olary Province
      • Bimbowrie Conservation Park
        • Old Boolcoomata Station
          • White Rock Feldspar Mine
Kampf et al. (2018)
      • Boolcoomatta Reserve (Boolcoomata Station)
Elliott et al. (2023)
Brazil
 
  • Minas Gerais
    • Conselheiro Pena
      • Barra do Cuieté
various photographs
e-rocks.com (n.d.) +2 other references
Sergio Varvello collection
Mineralogical Record 24: 384-385
    • Divino das Laranjeiras
      • Linópolis
Martens da Pedra
    • Galiléia
      • Sapucaia do Norte
Atencio et al. (2004)
Cassedanne et al. (1999)
Mineralogical Society of America - ...
    • Mantena
King (n.d.)
  • Paraíba
    • Pedra Lavrada
Knut Eldjarn Collection
Bulgaria
 
  • Pazardzhik Province
    • Panagyurishte Municipality
Chavdarova et al. (2022)
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
      • Krásno
        • Vysoký Kámen
Jirásek J. et al. (2016)
DR Congo
 
  • South Kivu
    • Mwenga Territory
Anthony et al. (2000)
Europe
 
Berbain et al. (2012)
France
 
  • Nouvelle-Aquitaine
    • Creuse
      • Guéret
        • Crozant
FONTAN F (1976)
  • Occitanie
    • Pyrénées-Orientales
      • Céret
        • Collioure
Berbain et al. (2012)
Germany
 
  • Bavaria
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Waidhaus
          • Hagendorf
www.berthold-weber.de (2001) +1 other reference
Greece
 
  • Eastern Macedonia and Thrace
    • Kavala
      • Kavala
Andrew P. Fornadel et al. (2011)
Madagascar
 
  • Amoron'i Mania
    • Ambatofinandrahana District
      • Mandrosonoro
Behier (1960)
Mozambique
 
  • Zambezia Province
Wilson et al. (2000)
    • Alto Mólocuè District
      • Murropoci-Nuaparra group
Neves et al. (1968)
Namibia
 
  • Erongo Region
    • Dâures Constituency
      • Sandamap North Farm 115
in the collection from F.J.Emmerich
    • Karibib Constituency
      • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
P. Keller and O. von Knorring
von Bezing (2007)
      • Tsaobismund Farm 85
von Bezing (2007)
Anthony et al. (2000)
Portugal
 
  • Guarda
    • Gouveia
      • Folgosinho
Pedro Alves collection
    • Guarda
      • Vela
Pedro Alves collection. Characterized ...
    • Sabugal
      • Bendada
Schnorrer-Köhler (1991)
Pedro Alves collection
  • Viana do Castelo
    • Caminha
      • Arga de Baixo
    • Ponte da Barca
      • Touvedo (São Lourenço e Salvador)
Self-find by Nuno Afonso +1 other reference
  • Vila Real
    • Vila Pouca de Aguiar
      • Alfarela de Jales
Neves (1960)
  • Viseu
    • Mangualde
      • Mangualde (Mesquitela e Cunha Alta)
Gramaccioli (1981) +1 other reference
Pedro Alves collection. +1 other reference
Mineralien Atlas
Rwanda
 
  • Western Province
    • Ngororero District
      • Muhororo
von Knorring et al. (1982) +2 other references
Sweden
 
  • Norrbotten County
    • Kiruna
      • Svappavaara
USA
 
  • Alabama
    • Coosa County
      • Rockford Mining District
        • Two Bit pegmatite
Cook et al. (1982)
Anthony et al. (2000)
  • Arizona
    • Yavapai County
      • Eureka Mining District
        • Hillside
          • Bagdad Mine area
Hurlbut et al. (1936) +4 other references
  • California
    • San Diego County
      • Pala Mining District
        • Pala
          • Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
Seaman (1976)
  • Maine
    • Oxford County
      • Greenwood
        • Uncle Tom Mountain
Thompson et al. (1998) +1 other reference
      • Newry
King (n.d.)
King et al. (6)
      • Stoneham
Thompson et al. (1998)
  • New Hampshire
    • Grafton County
      • Groton
Nashua Mineralogical Society Disp. Cat. ... +1 other reference
Moore (1973) +1 other reference
  • North Carolina
    • Cleveland County
      • Kings Mountain
  • South Dakota
    • Custer County
      • Custer Mining District
        • Custer
Anthony et al. (2000)
Anthony et al. (2000)
        • Fourmile
Januzzi et al. (1976)
        • Pringle
          • Cicero Peak
Anthony et al. (2000)
    • Pennington County
      • Keystone Mining District
        • Glendale
Campbell et al. (1985)
Smith et al. (2000)
  • Virginia
    • Amelia County
      • Winterham
Kearns et al. (2000)
  • Wisconsin
    • Florence County
R&M 73:11-12 pp 378-399 Wisconsin ...
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