Lanarkite (original) (raw)
A valid IMA mineral species - grandfathered
About LanarkiteHide
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Colour:
Greenish white, greyish-white, more rarely pale-yellow, colourless; colourless in transmitted light.
Lustre:
Adamantine, Resinous, Pearly
Crystal System:
Monoclinic
Name:
Named in 1832 for the type locality, the Susanna Mine, Leadhills, Lanarkshire, Scotland.
White to greyish-white or greenish-white prismatic crystals, often in clusters or sprays, usually tiny to microscopic.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2316:6
4b2ee5bf-e673-4f77-a7a7-81f81aef11a1
IMA Classification of LanarkiteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Type description reference:
Classification of LanarkiteHide
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7.BD.40
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
D : With only large cations
30.2.1.1
30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)2(XO4)Zq
25.7.4
25 : Sulphates
7 : Sulphates of Pb
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Lan | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Lan | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Pronunciation of LanarkiteHide
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Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of LanarkiteHide
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Adamantine, Resinous, Pearly
Transparency:
Transparent, Translucent
Comment:
Cleavage surfaces pearly.
Colour:
Greenish white, greyish-white, more rarely pale-yellow, colourless; colourless in transmitted light.
Cleavage:
Perfect
Perfect on {201}, imperfect on {402} and {201}; also on {010}.
Density:
6.92 g/cm3 (Measured) 7 g/cm3 (Calculated)
Optical Data of LanarkiteHide
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RI values:
_n_α = 1.928(3) _n_β = 2.007(3) _n_γ = 2.036(3)
δ = 0.108
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of LanarkiteHide
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Crystallography of LanarkiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 13.769 Å, b = 5.698 Å, c = 7.079 Å
β = 115.79°
Ratio:
a:b:c = 2.416 : 1 : 1.242
Unit Cell V:
500.07 ų (Calculated from Unit Cell)
Morphology:
Crystals prismatic, elongated parallel to [010], typically microscopic and in clusters or sprays; massive.
Twinning:
Polysynthetic in zone [010], but rare.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0010717 | Lanarkite | Sahl K (1970) Zur kristallstruktur von lanarkit, Pb2O(SO4) Zeitschrift fur Kristallographie 132 99-117 |  |
1970 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.37 Å | (20) |
| 4.43 Å | (20) |
| 3.34 Å | (100) |
| 2.963 Å | (80) |
| 2.958 Å | (20) |
| 2.87 Å | (20) |
| 2.85 Å | (40) |
| 2.05 Å | (20) |
Geological EnvironmentHide
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Geological Setting:
A secondary mineral of lead deposits, typically formed by the alteration of galena or other secondary minerals formed from galena.
Type Occurrence of LanarkiteHide
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Place of Conservation of Type Material:
Natural History Museum, Paris, France
Associated Minerals at Type Locality:
Reference:
Beudant, F.S. (1832) Traité élémentaire de minéralogie, second edition, 2 volumes: 2: 366.
Synonyms of LanarkiteHide
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Other Language Names for LanarkiteHide
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Varieties of LanarkiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of LanarkiteHide
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Other InformationHide
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Notes:
Alters to cerussite, leadhillite, and anglesite.
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 LanarkiteHide
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References for LanarkiteHide
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Reference List:
Localities for LanarkiteHide
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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.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.