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Lawsonbauerite

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About LawsonbaueriteHide

Lawson H. Bauer
Formula:
(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O
Colour:
colourless to white; grayish tan
Lustre:
Resinous, Greasy, Dull
Hardness:
Specific Gravity:
2.87
Crystal System:
Monoclinic
Name:
Named in 1979 by Pete J. Dunn, Donald Ralph Peacor, and Bozidar Darko Sturman in honor of Lawson Henry Bauer [August 18, 1888 Mertztown, Pennsylvania, USA - January 29, 1954 Franklin, New Jersey, USA], former Head Chemist of the New Jersey Zinc Co. laboratory, Franklin, NJ, and specialist in Franklin minerals. He graduated Phi Beta Kappa from Lafayette College and was a Fellow in the Mineralogical Society of America. He served as a member of the Franklin Board of Education and President of the Franklin Board of Health. He co-authored 18 mineralogical papers including the description of 9 new species: cahnite, calcium larsenite (renamed esperite), ferroschallerite (renamed nelenite), larsenite, loseyite, manganpyrosmalite, mcgovernite, mooreite, and yeatmanite.
Isostructural with:
The manganese analogue of Torreyite.


Classification of LawsonbaueriteHide

Approved
7.DD.40

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
31.1.4.2

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq·xH2O, where m:p > 6:1
25.9.12

25 : Sulphates
9 : Sulphates of Mn

Physical Properties of LawsonbaueriteHide

Resinous, Greasy, Dull
Transparency:
Transparent, Translucent
Colour:
colourless to white; grayish tan
Streak:
White
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.87 g/cm3 (Measured)    2.92 g/cm3 (Calculated)

Optical Data of LawsonbaueriteHide

Type:
Biaxial (-)
RI values:
nα = 1.590 nβ = 1.608 nγ = 1.611
2V:
Measured: 42° , Calculated: 44°
Birefringence:
0.021
Max Birefringence:
δ = 0.021
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v strong
Optical Extinction:
Y || b; Z^c = 7°
Pleochroism:
Non-pleochroic

Chemical Properties of LawsonbaueriteHide

Formula:
(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O
IMA Formula:
Mn2+9Zn4(SO4)2(OH)22 · 8H2O

Crystallography of LawsonbaueriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 10.54 Å, b = 9.62 Å, c = 16.46 Å
β = 95.21°
Ratio:
a:b:c = 1.096 : 1 : 1.711
Unit Cell V:
1,662.06 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Bladed to lath-like crystals

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.5 (100)
8.2 (10)
6.24 (30)
5.24 (60)
4.77 (20)
4.61 (20)
4.19 (10)
3.90 (50)
3.77 (20)
Comments:
ICDD 33-873

Type Occurrence of LawsonbaueriteHide

Synonyms of LawsonbaueriteHide

Other Language Names for LawsonbaueriteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Fluorite4 photos of Lawsonbauerite associated with Fluorite on mindat.org.
Pyrochroite4 photos of Lawsonbauerite associated with Pyrochroite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2OMon. m
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2OMon. m : Pm
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2OMon. m : Pm
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.20KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2OMon.
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric.
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon.
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OOrth. mm2 : Pca21
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OMon. 2/m : B2/b
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2OMon. 2/m : P21/m
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6·4H2O Mon. 2/m : P21/b
7.DD.35Carrboydite(Ni1-xAlx)(SO4)x/2(OH)2 · nH2OHex.
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35Hydrohonessite(Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : R3m
7.DD.35Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
7.DD.35WoodwarditeCu1-xAlx(OH)2(SO4)x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2•6H2OHex.
7.DD.35NikischeriteFe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
7.DD.40Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]Trig. 3 : P3
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2OMon. 2/m : P21/b
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2OMon. 2/m : P21/b
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2OMon. 2 : P21
7.DD.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2OMon.
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12·3H2OMon.
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig.
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl·6H2OHex.
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2OOrth. mm2 : Cmc21

Related Minerals - Dana Grouping (8th Ed.)Hide

31.1.4.1Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.9.1SzmikiteMnSO4 · H2OMon.
25.9.2JôkokuiteMnSO4 · 5H2OTric.
25.9.3MallarditeMnSO4 · 7H2OMon. 2/m : P2/m
25.9.4ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3
25.9.5Chvaleticeite(Mn,Mg)SO4 · 6H2OMon. 2/m : B2/b
25.9.6DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
25.9.7ApjohniteMn2+Al2(SO4)4 · 22H2OMon.
25.9.8ShigaiteMn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2OTrig.
25.9.9Ilesite(Mn,Zn,Fe)SO4 · 4H2OMon. 2/m
25.9.10MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
25.9.11Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
25.9.13Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2OMon. 2/m : P21/b

Fluorescence of LawsonbaueriteHide

Not fluorescent

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.

References for LawsonbaueriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1982): 67: 1029-1034.

Internet Links for LawsonbaueriteHide

Localities for LawsonbaueriteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • New Jersey
    • Sussex Co.
      • Franklin mining district
        • Ogdensburg
          • Sterling Hill
Dunn, P.J., et al: Am.Min.:64:949-952 (1979); Dunn(1995):Pt5:635-636.
Mineral and/or Locality  
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