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Lavinskyite

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Dr. Robert Lavinsky
Formula:
K(Li,Cu,Mg,Na)2Cu6(Si4O11)2(OH)4
System:
Orthorhombic
Name:
Named for Dr Robert Lavinsky
Isotypic with plancheite. The formerly approved "liguriaite", thought to be a polymorph, is now regarded as the 1M polytype of lavinskyite.



Classification of Lavinskyite

Approved
Approval Year:
2012

Type Occurrence of Lavinskyite

General Appearance of Type Material:
Light blue plates, associated with wesselsite and scottyite.
Place of Conservation of Type Material:
Mineral Museum of the University of Arizona, Tucson, Arizona, USA, catalogue number 19335

Crystallography of Lavinskyite

Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Lavinskyite-1MLavinskyite-2O
K(Li,Cu)Cu6(Si4O11)2(OH)4 
Monoclinic Orthorhombic 
2/m - Prismatic
P21/b  
P21/c  
a = 10.224(2) Å, b = 19.085(4) Å, c = 5.252(1) Å
γ = 92.23(3)°
a = 19.046(3) Å, b = 20.377(2) Å, c = 5.2497(6) Å
α = 90°, β = 90°, γ = 90°
a:b:c = 0.536 : 1 : 0.275a:b:c = 0.935 : 1 : 0.258
V 0.00 ų
(Calculated from Unit Cell)
V 2037.4 ų
  
X-Ray Powder Diffraction Data:
d-spacingIntensity
10.189(100)
8.984(74)
4.921(25)
3.973(19)
3.343(32)
2.693(29)
2.522(27)
2.316(22)

Chemical Properties of Lavinskyite

Formula:
K(Li,Cu,Mg,Na)2Cu6(Si4O11)2(OH)4
Idealised Formula:
K(LiCu)Cu6(Si4O11)2(OH)4
All elements listed in formula:

Other Names for Lavinskyite

Name in Other Languages:

Other Information

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 Lavinskyite

Reference List:
Yang, H., Downs, R.T., Evans, S.H., Pinch, W.W. and Origlieri, M.J. (2012): Scottyite, IMA 2012-027. CNMNC Newsletter No. 14, October 2012, page 1284; Mineralogical Magazine, 76, 1281-1288.

Yang, H., Downs, R.T., Evans, S.H., Pinch, W.W. (2014): Lavinskyite, K(LiCu)Cu6(Si4O11)2(OH)4, isotypic with planchéite, a new mineral from the Wessels mine, Kalahari Manganese Fields, South Africa. American Mineralogist, 99, 525-530.

Internet Links for Lavinskyite

mindat.org URL:
http://www.mindat.org/min-42860.html
Please feel free to link to this page.

Localities for Lavinskyite

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.
Italy
 
  • Liguria
    • La Spezia Province
      • Vara Valley
        • Borghetto Vara
analysed by Dr. Anthony Kampf, Natural History Museum of Los Angeles County, USA
South Africa (TL)
 
  • Northern Cape Province
    • Kalahari manganese field
      • Hotazel
http://rruff.info/lavinskyite; Yang, H., Downs, R.T., Evans, S.H., Pinch, W.W. (2014): Lavinskyite, K(LiCu)Cu6(Si4O11)2(OH)4, isotypic with planchéite, a new mineral from the Wessels mine, Kalahari Manganese Fields, South Africa. American Mineralogist, 99, 525-530.
      • Kuruman
        • N'Chwaning Mines
Label from Kalahari Minerals.
Mineral and/or Locality  
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