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Little Deerpark Quarry (Little Deer Park Quarry), Glenarm, Co. Antrim, Northern Ireland, UKi
Regional Level Types
Little Deerpark Quarry (Little Deer Park Quarry)Quarry
Glenarm- not defined -
Co. Antrim- not defined -
Northern IrelandConstituent Country

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Little Deer Park Quarry, Glenarm, Co. Antrim. Before the cliff fall.

Little Deerpark Quarry, Glenarm, Co. Antrim, Northern Ireland, UK
Little Deer Park Quarry, Glenarm, Co. Antrim. Before the cliff fall.

Little Deerpark Quarry, Glenarm, Co. Antrim, Northern Ireland, UK
Little Deer Park Quarry, Glenarm, Co. Antrim. Before the cliff fall.

Little Deerpark Quarry, Glenarm, Co. Antrim, Northern Ireland, UK
Latitude & Longitude (WGS84): 54° 57' 56'' North , 5° 55' 37'' West
Latitude & Longitude (decimal): 54.96547,-5.92707
GeoHash:G#: gcgb9nhj1
Locality type:Quarry
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
Carnlough1,427 (2016)5.0km
Glenariff1,286 (2016)12.9km
Larne18,421 (2016)14.6km
Cushendall1,226 (2016)15.4km
Broughshane2,581 (2016)19.7km

Abandoned 19th century chalk and basalt quarry on the west side of the coast road just south of Glenarm and opposite the natural sea arch known locally as "Madman's Window" or "Spy Window". It is the co-type locality for gmelinite, this honour being shared with Nero Mt., San Pietro, Montecchio Maggiore, Vicenza Province, Veneto, Italy. The first specimens were actually found at the Italian locality but were mistaken for a variety of analcime. When similar material was found at Little Deer Park it was passed to Sir David Brewster who, using both Irish and Italian material, proved it to be a new mineral and named it "gmelinite" in honour of the chemist Prof. Gmelin. Both Ca and Na dominant forms are present, even in the same crystal as zones (S. Moreton, unpublished XRF and SEM-EDS analyses).

Regions containing this locality

Eurasian PlateTectonic Plate
British IslesGroup of Islands
North Atlantic Igneous ProvinceLarge Igneous Province
Ireland (island)Island

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

6 valid minerals.

Detailed Mineral List:

Formula: Na(AlSi2O6) · H2O
Reference: Zeolites of the World, Rudy W. Tschernich 1992
Formula: CaCO3
Colour: Clear to honey coloured
Reference: Trevor Boyd collection
Reference: Trevor Boyd Collection
'Chabazite var: Phacolite'
Reference: Trevor Boyd Collection
Formula: Cu
Reference: Trevor Boyd Collection
Formula: Cu2O
Reference: Trevor Boyd Collection
Reference: Wilson O., Dyer A., Enamy H. (2003): Zeolites of the British Isles. British Micromount Society, Occasional Paper 15, 1-29
'Gmelinite var: Ledererite'
Reference: King, V. and Chenelatto, M., 2011, History of Ledererite. A Crystallographic Variety of Gmelinite, Mineral News, v. 27, p. 1-2, 5-7.
Formula: (Na,Ca)2(Si,Al)5O10 · 3H2O
Reference: Zeolites of the World, Rudy W. Tschernich 1992
Reference: Zeolites of the World, Rudy W. Tschernich 1992
Formula: Na2Al2Si3O10 · 2H2O
Reference: Zeolites of the World, Rudy W. Tschernich 1992
Description: Phillipsite-Ca confirmed in one specimen by XRD & quantitative XRF by Dr Stephen Moreton (unpublished data). Found as a radiating colourless cavity filling.
Reference: Zeolites of the World, Rudy W. Tschernich 1992

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Group 4 - Oxides and Hydroxides
Group 5 - Nitrates and Carbonates
Group 9 - Silicates
Analcime9.GB.05Na(AlSi2O6) · H2O
Gonnardite9.GA.05(Na,Ca)2(Si,Al)5O10 · 3H2O
Natrolite9.GA.05Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Rocks, etc.
'var: Phacolite'-
'var: Ledererite'-

List of minerals arranged by Dana 8th Edition classification

Metals, other than the Platinum Group
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Gonnardite77.1.5.7(Na,Ca)2(Si,Al)5O10 · 3H2O
Natrolite77.1.5.1Na2Al2Si3O10 · 2H2O
Unclassified Minerals, Mixtures, etc.
'var: Phacolite'-
'var: Ledererite'-

List of minerals for each chemical element

H AnalcimeNa(AlSi2O6) · H2O
H NatroliteNa2Al2Si3O10 · 2H2O
H Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
C CalciteCaCO3
O AnalcimeNa(AlSi2O6) · H2O
O NatroliteNa2Al2Si3O10 · 2H2O
O Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
O CalciteCaCO3
O CupriteCu2O
Na AnalcimeNa(AlSi2O6) · H2O
Na NatroliteNa2Al2Si3O10 · 2H2O
Na Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Al AnalcimeNa(AlSi2O6) · H2O
Al NatroliteNa2Al2Si3O10 · 2H2O
Al Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Si AnalcimeNa(AlSi2O6) · H2O
Si NatroliteNa2Al2Si3O10 · 2H2O
Si Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Ca Gonnardite(Na,Ca)2(Si,Al)5O10 · 3H2O
Ca CalciteCaCO3
Cu CopperCu
Cu CupriteCu2O

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 Cretaceous
66 - 100.5 Ma

ID: 2032596
Hibernian Greensands Formation And Ulster White Limestone Formation (Undifferentiated)

Age: Late Cretaceous (66 - 100.5 Ma)

Stratigraphic Name: Hibernian Greensands Formation; Ulster White Limestone Formation

Lithology: Chalk and sandstone

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

66 - 145 Ma

ID: 3187383
Mesozoic sedimentary rocks

Age: Cretaceous (66 - 145 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]

Triassic - Permian
201.3 - 298.9 Ma

ID: 3154725
Permian sandstone

Age: Phanerozoic (201.3 - 298.9 Ma)

Lithology: Major:{sandstone}, Minor{claystone,conglomerate}

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


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Brewster, D. (1825) Description of gmelinite, a new mineral species. Edinb. J. Sci., 2, 262-267.
King, V. and Chenelatto, M., 2011, History of Ledererite. A Crystallographic Variety of Gmelinite, Mineral News, v. 27, p. 1-2, 5-7.

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