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Paulmooreite

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Paulus B. Moore
Formula:
Pb2[As2O5]
System:
Monoclinic
Colour:
Colourless to pale orange
Lustre:
Sub-Adamantine
Hardness:
3
Name:
Named in 1979 by Pete J. Dunn, Donald R. Peacor, and B. Darko Sturman in honor of Dr. Paul (Paulus) B. Moore [1940 New Jersey, USA -], former Professor of Physics, University of Chicago. He specialized in the study of phosphates from granite pegmatites, mineralogy of Långban, Sweden and Franklin-Ogdensburg, New Jersey, USA and in the physics, mineralogy, and structure of boron-bearing minerals. He was a prolific student of crystal structures analysis and proposed a number of crystallo-chemical relationship in minerals. He was a also student of the Franklin Marble formation, NJ and NY. Paul was noted for his field studies as well as his laboratory work. As a recreational pursuit, he had a fascination for butterflies, discovering gender-specific fluorescent properties of wing pigments. (In his retirement years, Paul legally changed his named to its Latinized version, Paulus, in homage to the time-honored practice of many early scientists. Few, if any, of his voluminous publications use "Paulus" on the by-line.)
This page provides mineralogical data about Paulmooreite.


Classification of Paulmooreite

Approved
4.JA.50

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
45.1.8.1

45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
23.6

23 : Arsenites

Physical Properties of Paulmooreite

Sub-Adamantine
Diaphaneity (Transparency):
Transparent
Colour:
Colourless to pale orange
Streak:
White
Hardness (Mohs):
3
Tenacity:
Very brittle
Cleavage:
Distinct/Good
{100}
Density:
6.95(5) g/cm3 (Measured)    6.86 g/cm3 (Calculated)

Optical Data of Paulmooreite

Type:
Biaxial (+)
RI values:
nβ = 1.900 - 2.000 n = 1.9 - 2.0
2V:
Measured: 65°
Max Birefringence:
δ = 0.000
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v very strong
Optical Extinction:
Z^a = 10°, Y=b
Pleochroism:
Non-pleochroic

Chemical Properties of Paulmooreite

Formula:
Pb2[As2O5]
IMA Formula:
Pb2As23+O5
Elements listed in formula:

Crystallography of Paulmooreite

Crystal System:
Monoclinic
Cell Parameters:
a = 13.58 Å, b = 5.65 Å, c = 8.55 Å
β = 108.78°
Ratio:
a:b:c = 2.404 : 1 : 1.513
Unit Cell Volume:
V 621.09 ų (Calculated from Unit Cell)
Morphology:
Tabular on {100} or {001}; Observed faces include {100}, {001}, {011} with small or uncommon {201}, {110}, {111}
Comment:
Space group 2 or 2/m
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.30 (100)
3.02 (70)
2.905 (80)
2.761 (80)
2.024 (60)
1.768 (70)
1.726 (60)

Type Occurrence of Paulmooreite

General Appearance of Type Material:
Tabular crystals and grains to 0.5-1.0 mm
Geological Setting of Type Material:
Metamorphosed iron-manganese stratabound deposit containing unusual enrichment of many trace elements.
Associated Minerals at Type Locality:

Relationship of Paulmooreite to other Species

4.JA.05LeiteiteZn(As2O4)
4.JA.10ReineriteZn3(AsO3)2
4.JA.15KaribibiteFe3+(As3+O2)4(As23+O5)(OH)
4.JA.20KusachiiteCuBi2O4
4.JA.20SchafarzikiteFe2+Sb23+O4
4.JA.20TrippkeiteCu[As2O4]
4.JA.25ApuaniteFe2+Fe43+Sb43+O12S
4.JA.30VersiliaiteFe2Fe4Sb6O16S
4.JA.35SchneiderhöhniteFe2+Fe33+[As5O13]
4.JA.40Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18
4.JA.45LudlockitePbFe43+As103+O22
4.JA.55StibivaniteSb2VO5
4.JA.60Chadwickite(UO2)[HAsO3]
23.2NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14
23.3LeiteiteZn(As2O4)
23.5Kuznetsovite(Hg2+)Hg2+(AsO4)Cl
23.7EcdemitePb6Cl4(As2O7)
23.8HeliophyllitePb6Cl4(As2O7)
23.9FinnemanitePb5(AsO3)3Cl
23.10GebharditePb8(As2O5)2OCl6
23.11Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18
23.13RouseitePb2Mn2+[AsO3]2 · 2H2O
23.14FreediteCu+Pb8(AsO3)2O3Cl5
23.15ManganarsiteMn3(As2O4)(OH)4
23.17ArmangiteMn262+(AsO3)14(HAsO3)4(CO3)
23.18KaribibiteFe3+(As3+O2)4(As23+O5)(OH)
23.19SchneiderhöhniteFe2+Fe33+[As5O13]
23.20Lazarenkoite(Ca,Fe2+)Fe3+As33+O7 · 3H2O
23.21StenhuggariteCaFeSb(AsO3)2O
23.22Tomichite(V,Fe)4Ti3AsO13(OH)

Other Names for Paulmooreite

Name in Other Languages:

Other Information

Not fluorescent in UV
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 Paulmooreite

Reference List:
Dunn, Pete J., Peacor, Donald R., and Sturman, B. Daerko (1979): Paulmooreite, a new lead arsenite from Långban, Sweden. American Mineralogist 64, 352-354.

Araki, Takaharu, Moore, Paul B., and Brunton, G. D. (1980): The Crystal Structure of paulmooreite, Pb2[As2O5]: Dimeric arsenite Groups. American Mineralogist 65, 340-345.

Internet Links for Paulmooreite

mindat.org URL:
https://www.mindat.org/min-3135.html
Please feel free to link to this page.
Specimens:
The following Paulmooreite specimens are currently listed for sale on minfind.com.

Localities for Paulmooreite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
Schnorrer-Köhler, G., Standfuss, K. & Standfuss, L. (1985): Neue Schlackenmineralien von Lavrion. Lapis, 10 (5), 13-16; 50.
        • Passa Limani area
Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals of the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
Sweden (TL)
 
  • Värmland
    • Filipstad
Araki, T. , Moore, P.B. and Brunton, G.D. (1980). "The crystal structure of paulmooreite Pb2(As2O5): dimeric arsenite groups." American Mineralogist, 65(3/4), 340-345; Am. Min. (1979) 64, 352-354; Rocks & Min.: 63:228; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
Mineral and/or Locality  
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