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Km-3 Mine, Lavrion (Laurion; Laurium), Lavrion District Mines, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece

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Latitude & Longitude (WGS84): 37° 43' 8'' North , 24° 2' 1'' East
Latitude & Longitude (decimal): 37.7188888889, 24.0336111111

A small ancient mine working a Ni deposit west of the town of Lavrion, situated close to the "Km 3" milepost on the road from the town of Lavrion to the village of Agios Konstantinos (formerly Kamareza), around 2.5 km from each.

One of the most famous localities within the Lavrion district, known for the world's best annabergite specimens, with bright green crystals reaching 1 cm. Most well-crystallized specimens are the Mg-rich variety termed "cabrerite" (obsolete name), showing bright apple-green color.
Specimens can still be found in the dumps.

This locality actually consists of several individual places where different minerals can be found. A planned future revision will separate these into distinctive localities.
The literature mentions also unnamed adits "in the vicinity of km-3" (e.g. Hanke, 1998), in one of which gordaite was found.

Notes on the mineral list: Glaukosphaerite has been described by Schnorrer & Breitenbach (1996). However, specimens of "glaukosphaerite" from this locality which have been fully analysed have turned out to be rosasite. It is therefore in doubt whether most of the glaukosphaerite in collections actually are correctly identified.

Mineral List

70 valid minerals. 1 (TL) - type locality of valid minerals. 2 erroneous literature entries.

This page contains all mineral locality references listed on 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 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.


Schnorrer, G. & Breitenbach, H. (1996): Lavrion: Neufunde aus dem antiken Bergbau und in historischen Schlacken. Lapis, 21 (1), 45-48; 62.

Hanke, H. (1998): Laurion - ein Rückblick auf die Funde der letzten drei Jahre. Mineralien-Welt, 9 (2), 37-45.

Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).

Kolitsch, U., Rieck, B. and Voudouris, P. (2015): Mineralogy and genesis of the Lavrion ore deposit: new insights from the study of ore and accessory minerals. MinPet 2015, Leoben, Austria, September 10-13; abstract in Mitt. Österr. Mineral. Ges. 161, 66.

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