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Moylisha, Shillelagh, Co. Wicklow, Irelandi
Regional Level Types
Moylisha- not defined -
Shillelagh- not defined -
Co. Wicklow- not defined -
IrelandCountry

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Latitude & Longitude (WGS84): 52° 44' 42'' North , 6° 37' 37'' West
Latitude & Longitude (decimal): 52.74522,-6.62710
GeoHash:G#: gc7k11yr1
Köppen climate type:Cfb : Temperate oceanic climate


Spodumene pegmatites were prospected in the early 1970s along the flank of the Leinster granite. Moylisha was one of the larger prospects. There are no outcrops, the pegmatites are known from boulders and drill core. The spodumene forms laths up to about 20 cm long, and is usually white, though occasionally has a pinkish tint. The area is now under a dense forestry plantation. Occasional boulders may be found along the tracks. The access point for these is at Irish grid ref. S 923 673. In the course of the prospecting work an occurrence of exceptional cassiterite crystals was found. These are up to 2 or 3 cm across, euhedral and in quartz matrix. A fine example is in the Hunterian Museum (specimen GLAHM 111414). They were traced to a single vein exposed in a trench at grid ref. S 9270 6629. The trench is still visible at the top of a field, but is partly filled in and grassed over. There are no outcrops, nor any sign of cassiterite there now.

Regions containing this locality

Eurasia Plate

Plate - 7,320 mineral species & varietal names listed

Ireland (island)

Island - 488 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

'Apatite'
Reference: Steiger, R. & von Knorring, O. (1974) A lithium pegmatite belt in Ireland. J Earth Sci. Leeds Geol. Assoc. 8(3), 433-34.
Cassiterite
Formula: SnO2
Reference: Steiger, R. & von Knorring, O. (1974) A lithium pegmatite belt in Ireland. J. Earth Sci., Leeds Geol. Assoc. 8(3), 433-43.
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Steiger, R. & von Knorring, O. (1974) A lithium pegmatite belt in Ireland. J Earth Sci. Leeds Geol. Assoc. 8(3), 433-34.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Steiger, R. & von Knorring, O. (1974) A lithium pegmatite belt in Ireland. J Earth Sci. Leeds Geol. Assoc. 8(3), 433-34.
Spodumene
Formula: LiAlSi2O6
Reference: Steiger, R. & von Knorring, O. (1974) A lithium pegmatite belt in Ireland. J. Earth Sci., Leeds Geol. Assoc. 8(3), 433-43.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
Group 9 - Silicates
'Spodumene'9.DA.30LiAlSi2O6
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Garnet Group'-X3Z2(SiO4)3

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Spodumene65.1.4.1LiAlSi2O6
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

LiLithium
Li SpodumeneLiAlSi2O6
OOxygen
O CassiteriteSnO2
O Garnet GroupX3Z2(SiO4)3
O SpodumeneLiAlSi2O6
AlAluminium
Al SpodumeneLiAlSi2O6
SiSilicon
Si Garnet GroupX3Z2(SiO4)3
Si SpodumeneLiAlSi2O6
SnTin
Sn CassiteriteSnO2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Carboniferous
323.2 - 358.9 Ma



ID: 3192030
Paleozoic sedimentary rocks

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Devonian - Ordovician
358.9 - 485.4 Ma



ID: 3156638
Ordovician granite

Age: Paleozoic (358.9 - 485.4 Ma)

Lithology: Granite group

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Steiger, R. & von Knorring, O. (1974) A lithium pegmatite belt in Ireland. J of Earth Sci., Leeds Geol. Assoc. 8(3), 433-43.
Steiger, R. Prospecting for lithium and tungsten in Ireland. In Jones, M.J. (ed.) Prospecting in areas of glaciated terrain (1977), Inst. Mining & Metall., London. p. 14-24.
Whitworth, M. P. (1992). Petrogenetic implications of garnets associated with lithium pegmatites from SE Ireland. Mineralogical Magazine, 56(382), 75-83.


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