Km-3 Mine, Lavrion (Laurion; Laurium), Lavrion District Mines, Lavrion District (Laurion; Laurium), Attikí Prefecture (Attica; Attika), Greece
|Latitude & Longitude (WGS84):||37° 43' 8'' North , 24° 2' 1'' East|
|Latitude & Longitude (decimal):||37.71889,24.03361|
|Köppen climate type:||Csa : Hot-summer Mediterranean climate|
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.
70 valid minerals. 1 (TL) - type locality of valid minerals. 2 erroneous literature entries.
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
145 - 201.3 Ma
|Mesozoic crystalline metamorphic rocks|
Age: Jurassic (145 - 201.3 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. 
252.17 - 298.9 Ma