Lavendulan
A valid IMA mineral species - grandfathered
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About Lavendulan
Formula:
NaCaCu5(AsO4)4Cl · 5H2O
Colour:
Turquoise-blue, greenish blue, pale blue
Lustre:
Vitreous, Waxy
Hardness:
2½
Specific Gravity:
3.54
Crystal System:
Monoclinic
Member of:
Name:
Named after the lavender colour of the "type" specimen, which has been determined to be a mixture with no relationship to modern lavendulan (Ondruš et al., 2006). Lavendulan does not exhibit a lavender colour.
Dimorph of:
Isostructural with:
Lavendulan Group.
A polymorph of Lemanskiite, the Ca analogue of Zdenekite and the arsenate analogue of Sampleite.
Compare also the chemically and visually similar mahnertite.
May appear visually similar to slavkovite.
Data regarding this species have been significantly defined in recent years [see Ondruš et al. (2006) and the crystal structure determination by Giester et al. (2007)], including a re-examination of Breithaupt's type specimen. That effort disclosed that the "type specimen" of lavendulan was a mixture unrelated to present-day lavendulan. The second locality from which "lavendulan" was found is Jachymov (Joachimsthal), Czech Republic; therefore, the type locality of the species was changed to the latter locality, pending any formal declarations to the contrary.
A polymorph of Lemanskiite, the Ca analogue of Zdenekite and the arsenate analogue of Sampleite.
Compare also the chemically and visually similar mahnertite.
May appear visually similar to slavkovite.
Data regarding this species have been significantly defined in recent years [see Ondruš et al. (2006) and the crystal structure determination by Giester et al. (2007)], including a re-examination of Breithaupt's type specimen. That effort disclosed that the "type specimen" of lavendulan was a mixture unrelated to present-day lavendulan. The second locality from which "lavendulan" was found is Jachymov (Joachimsthal), Czech Republic; therefore, the type locality of the species was changed to the latter locality, pending any formal declarations to the contrary.
Unique Identifiers
Mindat ID:
2349
Long-form identifier:
mindat:1:1:2349:4
GUID
(UUID V4):
(UUID V4):
7ad54c9d-f0bf-4440-8a64-e3873cd13376
IMA Classification of Lavendulan
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1837
Classification of Lavendulan
8.DG.05
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
G : With large and medium-sized cations, (OH, etc.):RO4< 0.5:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
G : With large and medium-sized cations, (OH, etc.):RO4< 0.5:1
42.9.4.2
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
9 : (AB)7(XO4)4Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
9 : (AB)7(XO4)4Zq·xH2O
22.2.2
22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Lvd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Lavendulan
Vitreous, Waxy
Transparency:
Translucent
Comment:
Satinly in aggregates
Colour:
Turquoise-blue, greenish blue, pale blue
Hardness:
2½ on Mohs scale
Cleavage:
Distinct/Good
Good on {010}
Distinct on {100} {001}
Good on {010}
Distinct on {100} {001}
Density:
3.54 g/cm3 (Measured) 3.597 g/cm3 (Calculated)
Optical Data of Lavendulan
Type:
Biaxial (-)
RI values:
nα = 1.660 nβ = 1.715 nγ = 1.734
2V:
Measured: 33° , Calculated: 58°
Max Birefringence:
δ = 0.074
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak
Pleochroism:
Visible
Comments:
O= pale blue to pale greenish blue
E= blue to greenish blue
E= blue to greenish blue
Chemistry of Lavendulan
Mindat Formula:
NaCaCu5(AsO4)4Cl · 5H2O
Crystallography of Lavendulan
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 10.011 Å, b = 19.478 Å, c = 10.056 Å
β = 90.37°
β = 90.37°
Ratio:
a:b:c = 0.514 : 1 : 0.516
Unit Cell V:
1960.8 ų
Z:
4
Morphology:
Thin rectangular, pseudo-orthorhombic plates.
Twinning:
Commmon.
Comment:
Space group P21/n. Pseudo-orthorhombic metrics.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0007195 | Lavendulan | Giester G, Kolitsch U, Leverett P, Turner P, Williams P A (2007) The crystal structures of lavendulan, sampleite, and a new polymorph of sampleite European Journal of Mineralogy 19 75-93 | 2007 | Hilarion mine, Lavrion, Greece | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.716 Å | (100) |
| 7.084 Å | (5) |
| 6.970 Å | (5) |
| 5.003 Å | (7) |
| 4.865 Å | (16) |
| 4.449 Å | (7) |
| 4.371 Å | (5) |
| 3.243 Å | (4) |
| 3.156 Å | (6) |
| 3.110 Å | (9) |
| 3.082 Å | (5) |
| 2.968 Å | (9) |
| 2.752 Å | (7) |
| 2.668 Å | (4) |
| 2.513 Å | (5) |
| 2.482 Å | (5) |
Comments:
From ICDD-PDF no. 49-1857 (based on crystal structure).
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 55 : Anthropogenic mine minerals | |
| 56 : Slag and smelter minerals (see also #51 and #55) |
Geological Setting:
Secondary mineral in the oxidized zone of some copper deposits.
Type Occurrence of Lavendulan
Place of Conservation of Type Material:
Mining Academy, Freiberg, Germany, 20944.
Reference:
Breithaupt, A. (1837) Bestimmung neuer Mineralien. 3. Lavendulan. Journal für praktische Chemie: 10: 505-506.
Synonyms of Lavendulan
Other Language Names for Lavendulan
German:Lavendulanit
Lavendulit
Lavendulit
Japanese:ラヴェンデュラン
Simplified Chinese:氯砷钠铜石
Spanish:Lavendulanita
Lavendulita
Lavendulita
Traditional Chinese:氯砷鈉銅石
Varieties of Lavendulan
| Zinclavendulan | Zn-bearing lavendulan (originally thought to be the Zn-dominant analogue of lavendulan). Modern reinvestigation desirable. First reported from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia. |
Relationship of Lavendulan to other Species
Member of:
Other Members of this group:
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
| 46 photos of Lavendulan associated with Conichalcite | CaCu(AsO4)(OH) |
| 24 photos of Lavendulan associated with Olivenite | Cu2(AsO4)(OH) |
| 21 photos of Lavendulan associated with Erythrite | Co3(AsO4)2 · 8H2O |
| 20 photos of Lavendulan associated with Azurite | Cu3(CO3)2(OH)2 |
| 19 photos of Lavendulan associated with Lammerite | Cu3(AsO4)2 |
| 17 photos of Lavendulan associated with Magnesiokoritnigite | Mg(AsO3OH) · H2O |
| 13 photos of Lavendulan associated with Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
| 13 photos of Lavendulan associated with Cyanotrichite | Cu4Al2(SO4)(OH)12 · 2H2O |
| 12 photos of Lavendulan associated with Ondrušite | CaCu4(AsO4)2(HAsO4)2 · 10H2O |
| 10 photos of Lavendulan associated with Canutite | NaMn3[AsO4][AsO3(OH)]2 |
Related Minerals - Strunz-mindat Grouping
| 8.DG. | Jasonsmithite | Mn2+4ZnAl(PO4)4(OH)(H2O)7 · 3.5H2O |
| 8.DG. | Davidbrownite-(NH4) | (NH4)5(V4+O)2(C2O4)[PO2.75(OH)1.25]4 · 3H2O |
| 8.DG. | Relianceite-(K) | K4Mg(V4+O)2(C2O4)(PO3OH)4(H2O)10 |
| 8.DG. | Pleysteinite | [(H2O)0.5K0.5]2Mn2Al3(PO4)4F2 · 14H2O |
| 8.DG. | Rewitzerite | [K(H2O)]Mn2Al3(PO4)4(OH)2 · 14H2O |
| 8.DG.05 | Sampleite | NaCaCu5(PO4)4Cl · 5H2O |
| 8.DG.05 | Shubnikovite | Ca2Cu8(AsO4)6(OH)Cl · 7H2O |
| 8.DG.05 | Zdenĕkite | NaPbCu5(AsO4)4Cl · 5H2O |
| 8.DG.05 | Lemanskiite | NaCaCu5(AsO4)4Cl · 3H2O |
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.
Internet Links for Lavendulan
mindat.org URL:
https://www.mindat.org/min-2349.html
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References for Lavendulan
Reference List:
Guillemin, Claude (1956) Contribution à la minéralogie des arséniates, phosphates et vanadates de cuivre. I. — Arséniates de cuivre. Bulletin de Minéralogie, 79 (1) 7-95 doi:10.3406/bulmi.1956.5049
Localities for Lavendulan
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Argentina | |
| Singer et al. (2008) |
| Sureda |
Australia | |
| Day +3 other references |
| Uwe Kolitsch collection +2 other references |
| Kolitsch et al. (1999) |
| Jack Leach collection & Museum of ... |
| Kleeman et al. (1973) +1 other reference |
| South Australian Museum collection |
| |
| Nickel et al. (1993) |
| Mineralogical Record 24 | |
| Grice et al. (1991) | |
| Clissold (2007) |
| P Haas and RD Green collections |
| Government Chemical Laboratories. In: ... +1 other reference |
Austria | |
| Brandstätter et al. (2009) |
| Strasser (1989) |
Bolivia | |
| J.Coordination Chemistry 61 (2008) +1 other reference |
Canada | |
| Transactions of the Canadian Institute ... +2 other references |
Chile | |
| SEM-EDS by Joy Desor |
| - (n.d.) |
| U. Kolitsch collection (SXRD analysed) +2 other references |
| Samples analysed by Dr. Jochen Schluter |
| Samples analysed by Dr. Jochen Schluter | |
| Samples analysed by Dr. Jochen Schlüter (Hamburg University) |
| SEM-EDS by Joy Desor |
| Robert A. Jenkins find - personal ... | |
| Samples analysed by Tony Kampf of LAC ... +2 other references | |
| Yang et al. (2011) | |
| maurizio dini collection - quantitative ... | |
| Palache et al. (1951) +1 other reference |
| Kampf et al. (2013) +1 other reference |
Czech Republic (TL) | |
| Palache et al. (1951) |
| Lapis (2002) | |
| Brent Thorne specimen with hlousekite. |
| Lapis 2002 (7/8) +1 other reference | |
France | |
| Pélisson et al. (1987) |
| Caubel (1997) |
| Jean-Marie Claude collection +1 other reference |
| Stephane Maury Collection | |
| Georges FAVREAU and CLAUDE Jean-Marie ... | |
Germany | |
| Walenta (1992) +1 other reference |
| Walenta (1992) |
| Weiß (1990) | |
| |
| |
| Walenta (1992) | |
| [Lapis 1992 |
| Walenta (1992) |
| Walenta (1992) |
| Wittern (2001) |
| 54. +1 other reference |
| Weiß (1990) |
| J. Gröbner: Neufunde aus den Bergbaurevieren St. Andreasberg et al. (2007) |
| 62. +1 other reference |
| Wittern (2001) |
| Wittern (2001) |
| Wittern (2001) | |
| Heinrich et al. (2011) |
| Blaß et al. (1995) |
| Graf et al. (1992) |
| Blaß et al. (1995) |
| Schnorrer-Köhler (1988) |
| Weiß (1990) |
| |
| Wittern (2001) | |
| 58. +1 other reference |
| A. Breithaupt (1837) |
| Möhn et al. (08/2020) |
| Wittern (2001) | |
| Hajek (2010) |
| J. Gröbner (7/8) |
| Lapis (2008) |
| Wittern (2001) |
Greece | |
| Elbin et al. (1996) |
| Simone Citon specimen | |
| LAPIS 24 (7/8) +1 other reference | |
| 62 +2 other references |
| Lapis (May 2003) |
| Gröbner (2003) | |
| Schnorrer-Köhler et al. (1988) | |
| Gelaude et al. (1996) | |
Hungary | |
| Szakáll: Minerals of Rudabánya |
| Szakáll: Minerals of Rudabánya | |
| HOM Collection |
Iran | |
| Collection of NHM |
| Bariand et al. (1993) | |
Ireland | |
| S. Burchmore Collection |
| S. MORETON et al. (1999) |
| |
| |
Italy | |
| Pagano et al. (2001) |
| Analyses of Anthony Kampf of Natural ... +1 other reference | |
| Redazione (2005) |
| Balestra C. (preliminary EDS analysis) +1 other reference |
| M.E. Ciriotti Probed 2005 |
| Fernando Caboni et al. (2023) |
| Stara et al. (1996) |
| Stara et al. (1996) | |
| Fernando Caboni et al. (2024) | |
| Sergio Mascia finding +1 other reference | |
| Brizzi et al. (1994) |
| Stara et al. (1996) | |
| Stara et al. (1996) | |
| Ferretti et al. (2018) |
| Bonifazi (2021) |
| Orlandi et al. (1994) +1 other reference |
| Orlandi et al. (2009) +1 other reference |
| Olmi et al. (1994) +1 other reference | |
| Orlandi et al. (2009) | |
| Orlandi et al. (2002) |
| Olmi F. et al. (1994) +1 other reference | |
| Orlandi et al. (2002) | |
Morocco | |
| Favreau et al. (2006) |
| Favreau et al. (2006) | |
| Favreau et al. (2006) |
| Barral et al. (2008) |
| Favreau et al. (2006) |
| Tomasz Praszkier (2010) |
| Favreau et al. (2006) | |
| Favreau et al. (2006) | |
| Favreau et al. (2006) |
| Favreau et al. (2006) |
| Favreau et al. (2006) |
Namibia | |
| Gebhard (1999) |
| Ettler et al. (2009) | |
Portugal | |
| Marques de Sá et al. (2010) |
| Pedro Alves collection and analytical ... |
| Pedro Alves collection and analytical ... |
| Pedro Alves collection and analytical ... |
Romania | |
| Udubasa et al. (2011) |
South Africa | |
| Cairncross et al. (1995) |
Spain | |
| Pesudo Verde Collection |
| FAVREAU et al. (2013) |
| Christiane & Jean-Robert Eytier ... |
| Ignacio Gaspar | |
| S.Rust Collection | |
| Rewitzer et al. (part 2) |
| Joan Rosell (2023) |
| Calvo (2008) |
| Joan Abella i Creus and Joan Viñals i Olià (2012) |
| Viñals et al. (1990) |
| Xavi Ortiz Collection |
| |
| MinRec-2003-0708-315 | |
| |
Switzerland | |
| Ansermet (2012) |
| Cuchet et al. (2002) |
UK | |
| Golley et al. (1995) |
| Elton et al. (1995) |
| Steve Rust collection | |
| Golley et al. (1995) |
| - (2006) |
| Minerals of the World MSN community ... +3 other references |
| Render (n.d.) |
| Day (1999) |
| Braithwaite et al. (1990) |
| Day (1999) | |
| Day (1999) | |
| R. S. W. Braithwaite and J. R. Knight (1990) +1 other reference |
USA | |
| Raman analyzed at the University of ... |
| MarekC pers. coll. 2017-2018 |
| [Mineralogical Record - Vol 23 No. 2] |
| |
| Castor et al. (2004) | |
| Castor et al. (2004) |
| Castor et al. (2004) |
| Castor et al. (2004) |
| The Minerals of Rhyolite Pass |
| Castor et al. (2004) +1 other reference |
| Jensen (1993) +1 other reference |
| Jensen (1993) | |
| Nickischer |
| collected by Brent Thorne |
| Min News 10:12 p5 |
| Kokinos et al. (1993) |
| collected by Brent Thorne +1 other reference | |
| Collected by Robert Meyer. | |
| Min Rec 24:1 pp11-22 | |
| Collected by and in the collection of ... |
| Collected by and in the collection of ... |
Zimbabwe | |
| Vetter et al. (1999) +1 other reference |
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Preamimma Mine, Callington, South Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia