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El Hoyazo, Níjar, Almería, Andalusia, Spain

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Latitude & Longitude (WGS84): 36° 57' 37'' North , 2° 10' 9'' West
Latitude & Longitude (decimal): 36.96028,-2.16917
GeoHash:G#: eyw6q8kmn
Köppen climate type:BSk : Cold semi-arid (steppe) climate
Name(s) in local language(s):Cerro del Hoyazo / Cráter de las Granatillas (Cráter de La Granadilla), Níjar, Almería, Andalucía, España

Old underwater volcanic cone topped by a coral reef crown of 600 m in diameter. Volcanism is calc-alkaline potassic type. Rocks are biotite-rich dacites with many phenocrystals of almandine, plagioclase, cordierite, biotite, and xenoliths of cordierite / sillimanite gneiss and other metamorphic rocks.
Due to almandine-rich dacite weathering and decomposition, some areas of the crater bottom are sowed with trapezohedral garnets up to 1,5 cm

Mineral List

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

6 valid minerals.

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

Messinian - Serravallian
5.333 - 13.82 Ma

ID: 2506242

Age: Miocene (5.333 - 13.82 Ma)

Description: Calc-alkaline volcanic rocks (andesite, dacite, rhyolite, shoshonite, lamproite)

Lithology: Volcanics and volcaniclastic rocks

Reference: Mapa Geológico de la Península Ibérica, Baleares y Canarias a escala 1:1.000.000. Instituto Geológico y Minero de España. [77]

Mesozoic - Paleozoic
66 - 541 Ma

ID: 3189233
Paleozoic-Mesozoic crystalline metamorphic rocks

Age: Phanerozoic (66 - 541 Ma)

Lithology: Crystalline metamorphic 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]

Mesozoic - Paleozoic
66 - 541 Ma

ID: 3134878
Alpujarride Complex

Age: Phanerozoic (66 - 541 Ma)

Stratigraphic Name: Alpujarride Complex

Description: undifferentiated metamorphic

Lithology: Major:{marble}, Minor{phyllite,mica schist,migmatite/anatexite}

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

Localities in this Region
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This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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Memory of Geologic Map MAGNA/50 sheet #1.046 (Carboneras). Antonio Pineda et al. 1981, Instituto Geológico y Minero de España (IGME).

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