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Holywell, Flintshire, Wales, UK

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Latitude & Longitude (WGS84): 53° 16' 37'' North , 3° 13' 20'' West
Latitude & Longitude (decimal): 53.27713,-3.22240
GeoHash:G#: gcmxndv9b
UK National Grid Reference:SJ185763
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical names associated with this locality:Clwyd

Appears to be a generic location. There were a number of lead-zinc mines within about a 5 mile radius of the town of Holywell, including Trelogan to the west, and the mines of the Halkyn mining field to the south.

OS national grid reference is for the town of Holywell itself and is not a specific mineral location.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

4 valid minerals.

Detailed Mineral List:

Formula: ZnSO4 · 7H2O
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.
Formula: Zn4Si2O7(OH)2 · H2O
Reference: F. Rutley: "Elements of Mineralogy", 12th Ed. (1900)
Formula: Pb5(PO4)3Cl
Reference: F. Rutley: "Elements of Mineralogy", 12th Ed. (1900)
Formula: ZnCO3
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Goslarite'7.CB.40ZnSO4 · 7H2O
Group 8 - Phosphates, Arsenates and Vanadates
Group 9 - Silicates
'Hemimorphite'9.BD.10Zn4Si2O7(OH)2 · H2O

List of minerals arranged by Dana 8th Edition classification

Goslarite29.6.11.2ZnSO4 · 7H2O
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O

List of minerals for each chemical element

H GoslariteZnSO4 · 7H2O
H HemimorphiteZn4Si2O7(OH)2 · H2O
C SmithsoniteZnCO3
O GoslariteZnSO4 · 7H2O
O HemimorphiteZn4Si2O7(OH)2 · H2O
O PyromorphitePb5(PO4)3Cl
O SmithsoniteZnCO3
Si HemimorphiteZn4Si2O7(OH)2 · H2O
P PyromorphitePb5(PO4)3Cl
S GoslariteZnSO4 · 7H2O
Cl PyromorphitePb5(PO4)3Cl
Zn GoslariteZnSO4 · 7H2O
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn SmithsoniteZnCO3
Pb PyromorphitePb5(PO4)3Cl

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

Late Carboniferous
298.9 - 323.2 Ma

ID: 3144255
Late Carboniferous claystone

Age: Pennsylvanian (298.9 - 323.2 Ma)

Lithology: Major:{claystone}, Minor{siltstone,sandstone,coal}

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]

Bashkirian - Tournaisian
315.2 - 358.9 Ma

ID: 2035969
Bowland High Group And Craven Group (Undifferentiated)

Age: Carboniferous (315.2 - 358.9 Ma)

Stratigraphic Name: Bowland High Group; Craven Group

Lithology: Mudstone, siltstone and sandstone

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

419.2 - 443.8 Ma

ID: 3185808
Paleozoic sedimentary rocks

Age: Silurian (419.2 - 443.8 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]

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

Localities in this Region
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