Lammerite-β
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About Lammerite-β
Formula:
Cu3(AsO4)2
Crystal System:
Monoclinic
Name:
Named for the polymorphic relation to lammerite.
Type Locality:
Dimorph of:
Classification of Lammerite-β
Approved
Approval Year:
2009
8.AB.30
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
38.3.8.2
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
Chemical Properties of Lammerite-β
Formula:
Cu3(AsO4)2
Elements listed:
Crystallography of Lammerite-β
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 6.306(1) Å, b = 8.643(1) Å, c = 11.310(1) Å
β = 92.26(1)°
β = 92.26(1)°
Ratio:
a:b:c = 0.73 : 1 : 1.309
Unit Cell V:
615.95 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.41 Å | (20) |
| 4.02 Å | (30) |
| 3.39 Å | (50) |
| 2.79 Å | (100) |
| 2.34 Å | (20) |
| 2.13 Å | (20) |
| 2.02 Å | (20) |
| 1.89 Å | (20) |
| 1.64 Å | (20) |
Type Occurrence of Lammerite-β
Synonyms of Lammerite-β
Related Minerals - Nickel-Strunz Grouping
| 8.AB. | Borisenkoite | Cu3[(V,As)O4]2 | Mon. 2/m : P21/b |
| 8.AB.05 | Farringtonite | Mg3(PO4)2 | Mon. 2/m |
| 8.AB.10 | Ferrisicklerite | Li1-x(Fe3+xFe2+1-x)PO4 | Orth. |
| 8.AB.10 | Heterosite | (Fe3+,Mn3+)PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
| 8.AB.10 | Lithiophilite | LiMn2+PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
| 8.AB.10 | Natrophilite | NaMn2+PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
| 8.AB.10 | Purpurite | Mn3+(PO4) | Orth. mmm (2/m 2/m 2/m) : Pmna |
| 8.AB.10 | Sicklerite | Li1-x(Mn3+xMn2+1-x)PO4 | Orth. |
| 8.AB.10 | Simferite | Li(Mg,Fe3+,Mn3+)2(PO4)2 | Orth. |
| 8.AB.10 | Triphylite | LiFe2+PO4 | Orth. mmm (2/m 2/m 2/m) : Pmna |
| 8.AB.10 | Karenwebberite | NaFe2+PO4 | Orth. mmm (2/m 2/m 2/m) : Pnma |
| 8.AB.15 | Sarcopside | (Fe2+,Mn2+,Mg)3(PO4)2 | Mon. 2/m : P21/b |
| 8.AB.15 | Chopinite | (Mg,Fe2+)3(PO4)2 | Mon. 2/m : P21/b |
| 8.AB.20 | Beusite | Mn2+Mn2+2 (PO4)2 | Mon. |
| 8.AB.20 | Graftonite | Fe2+Fe2+2(PO4)2 | Mon. 2/m : P21/b |
| 8.AB.25 | Xanthiosite | Ni3(AsO4)2 | Mon. 2/m : P21/b |
| 8.AB.30 | Lammerite | Cu3(AsO4)2 | Mon. |
| 8.AB.35 | Mcbirneyite | Cu3(VO4)2 | Tric. 1 : P1 |
| 8.AB.35 | Stranskiite | Zn2Cu(AsO4)2 | Tric. 1 : P1 |
| 8.AB.35 | Pseudolyonsite | Cu3(VO4)2 | Mon. 2/m : P21/b |
| 8.AB.40 | Lyonsite | Cu3Fe4(VO4)6 | Orth. |
Related Minerals - Dana Grouping (8th Ed.)
| 38.3.8.1 | Lammerite | Cu3(AsO4)2 | Mon. |
| 38.3.8.4 | Pseudolyonsite | Cu3(VO4)2 | Mon. 2/m : P21/b |
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 Lammerite-β
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Starova, G.L., Vergasova, L.P., Filatov, S.K., Britvin, S.N., and Ananyev V. V. (2011) Lammerite-β, Cu3(AsO4)2 - a new mineral from fumaroles of the Great Tolbachic [sic] eruption (Kamchatka, Russia). Zapiski RMO (Proceedings of the Russian Mineralogical Society) 140(5), 46-51 (in Russian) [http://www.minsoc.ru/articles.php?id=34&mid=21405&eid=2140503].
Internet Links for Lammerite-β
mindat.org URL:
https://www.mindat.org/min-29291.html
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Localities for Lammerite-β
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| IMA Approvals - April 2009 |
| IMA approvals-April 2009 | |
| Rick Turner (2014), pers. com. |
| Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G., Pushcharovsky, D.Yu. (2014): New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. II. Ericlaxmanite and kozyrevskite, two natural modifications of Cu4O(AsO4)2. Mineralogical Magazine, 78, 1553–1569. |
Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik volcano, Kamchatka Krai, Russia