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Lammerite

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Big Photo

Abundancia Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile
© Dick Dionne

Show Lammerite Photos (29)



Formula:
Cu
 
3
(AsO
 
4
)
 
2
System:MonoclinicColour:Dark green
Hardness:3 - 4
Name:
For Franz Lammer, mineral collector of Leoben, Austria, who provided the first specimen.
Dimorph of:Lammerite-β
This page provides mineralogical data about Lammerite.

Classification of Lammerite

IMA status:Approved
Strunz 8th edition ID:7/A.09-10
Nickel-Strunz 10th (pending) edition ID:8.AB.30

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
Dana 7th edition ID:38.3.8.1
Dana 8th edition ID:38.3.8.1

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
Hey's CIM Ref.:20.1.1

20 : Arsenates (also arsenates with phosphate, but without other anions)
1 : Arsenates of Cu
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Type Occurrence of Lammerite

Type Locality:Laurani Mine, Laurani District, Aroma Province, La Paz Department, Bolivia
Year of Discovery:1981

Physical Properties of Lammerite

Diaphaneity (Transparency):Transparent
Colour:Dark green
Streak:Pale green
Hardness (Mohs):3 - 4
Density (measured):5.18 g/cm3

Crystallography of Lammerite

Crystal System:Monoclinic
Cell Parameters:a = 5.39Å, b = 11.64Å, c = 5.07Å
β = 111.73°
Ratio:a:b:c = 0.463 : 1 : 0.436
Unit Cell Volume:V 295.49 ų (Calculated from Unit Cell)

Optical Data of Lammerite

Type:Biaxial (+)
Dispersion:r > v extreme

Chemical Properties of Lammerite

Formula:
Cu
 
3
(AsO
 
4
)
 
2
Essential elements:As, Cu, O
All elements listed in formula:As, Cu, O

Relationship of Lammerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.AB.05Farringtonite
Mg
 
3
(PO
 
4
)
 
2
8.AB.10Ferrisicklerite
(Fe
3+
 
,LiMn
2+
 
)PO
 
4
8.AB.10Heterosite
(Fe
3+
 
,Mn
3+
 
)PO
 
4
8.AB.10Lithiophilite
LiMn
2+
 
PO
 
4
8.AB.10Natrophilite
NaMn
2+
 
PO
 
4
8.AB.10Purpurite
(Mn
3+
 
,Fe
3+
 
)PO
 
4
8.AB.10Sicklerite
(LiMn
2+
 
,Fe
3+
 
)PO
 
4
8.AB.10Simferite
Li(Mg,Fe
3+
 
,Mn
3+
 
)
 
2
(PO
 
4
)
 
2
8.AB.10Triphylite
LiFe
2+
 
PO
 
4
8.AB.10Karenwebberite
Na(Fe
2+
 
,Mn
2+
 
)PO
 
4
8.AB.15Sarcopside
(Fe
2+
 
,Mn
2+
 
,Mg)
 
3
(PO
 
4
)
 
2
8.AB.15Chopinite
(Mg,Fe
2+
 
)
 
3
(PO
 
4
)
 
2
8.AB.20Beusite
(Mn
2+
 
,Fe
2+
 
,Ca,Mg)
 
3
(PO
 
4
)
 
2
8.AB.20Graftonite
(Fe
2+
 
,Mn
2+
 
,Ca)
 
3
(PO
 
4
)
 
2
8.AB.25Xanthiosite
Ni
 
3
(AsO
 
4
)
 
2
8.AB.30Lammerite-β
Cu
 
3
(AsO
 
4
)
 
2
8.AB.35Mcbirneyite
Cu
 
3
(VO
 
4
)
 
2
8.AB.35Stranskiite
Zn
 
2
Cu(AsO
 
4
)
 
2
8.AB.35Pseudolyonsite
Cu
 
3
(VO
 
4
)
 
2
8.AB.40Lyonsite
Cu
 
3
Fe
 
4
(VO
 
4
)
 
6
Related Minerals - Hey's Index Grouping:

- +
20.1.2Olivenite
Cu
 
2
(AsO
 
4
)(OH)
20.1.3Clinoclase
Cu
 
3
(AsO
 
4
)(OH)
 
3
20.1.4Cornwallite
Cu
 
5
(AsO
 
4
)
 
2
(OH)
 
4
20.1.5Cornubite
Cu
 
5
(AsO
 
4
)
 
2
(OH)
 
4
20.1.6Chlorotile (of Frenzel)
20.1.7Geminite
Cu(HAsO
 
4
) · H
 
2
O
20.1.8Euchroite
Cu
 
2
(AsO
 
4
)(OH) · 3H
 
2
O
20.1.9Strashimirite
Cu
 
8
(AsO
 
4
)
 
4
(OH)
 
4
 · 5H
 
2
O
20.1.10Arhbarite
Cu
 
2
Mg(AsO
 
4
)(OH)
 
3
20.1.11Lindackerite
CuCu
 
4
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 8-9H
 
2
O
20.1.12Conichalcite
CaCu(AsO
 
4
)(OH)
20.1.13Liroconite
Cu
 
2
Al(AsO
 
4
)(OH)
 
4
 · 4H
 
2
O
20.1.14Ceruleite
Cu
 
2
Al
 
7
(AsO
 
4
)
 
4
(OH)
 
13
 · 11.5H
 
2
O
20.1.15Chenevixite
Cu
 
2
Fe
3+
2
(AsO
 
4
)
 
2
(OH)
 
4
20.1.16Arthurite
CuFe
3+
2
(AsO
 
4
,PO
 
4
,SO
 
4
)
 
2
(OH,O)
 
2
 · 4H
 
2
O

Other Names for Lammerite

Synonyms:
IMA1980-016
Other Languages:
German:Lammerit
Russian:Ламмерит
Spanish:Lammerita

Other Information

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

References for Lammerite

Reference List:

- +
American Mineralogist (1982): 67: 415.

American Mineralogist (1986): 71: 206-209.

Internet Links for Lammerite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Lammerite details from Handbook of Mineralogy (PDF)
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    • Specimens:The following Lammerite specimens are currently listed for sale on minfind.com.
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    • Localities for Lammerite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    Bolivia
     
    • La Paz Department
      • Aroma Province
        • Laurani District
    		Tschermaks Min.Petr.Mitt. (1981) 28, 157-164
    • Potosí Department
      • Antonio Quijarro Province
        • Huanchaca
    		W. Stoll collection (gift from Franz Lammer)
    Chile
     
    • Antofagasta Region
      • Antofagasta Province
        • Santa Catalina
          • Guanaco (Huanaco)
    		Ondruš, P., Veselovský, F, Sejkora, J., Skála, R., Pažout, R., Frýda, J., Gabašová, A., Vajdak, J. (2005): Lemanskiite, NaCaCu5(AsO4)4Cl•5H2O, a new mineral species from the Abundancia mine, Chile. Can. Mineral. 44, 523-531.
    U. Kolitsch collection (SXRD analysed); IMA submission #037-99, Dr. F. Veselovsky, Czech Geol. Survey
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
    Ettler, V., Johan, Z., Kříbek, B., Šebek, O. & Mihaljevič, M. (2009): Mineralogy and environmental stability of slags from the Tsumeb smelter, Namibia. Applied Geochemistry 24, 1-15.
    Russia
     
    • Far-Eastern Region
      • Kamchatka Oblast'
        • Tolbachik volcano
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
            • Northern Breakthrough (North Breach)
    		Pavel M. Kartashov data
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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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