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Ylämaa spectrolite quarries, Ylämaa area, Lappeenranta, South Karelia, Finlandi
Regional Level Types
Ylämaa spectrolite quarriesGroup of Quarries
Ylämaa areaMunicipality (Former)
South KareliaRegion

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Latitude & Longitude (WGS84):
60° 46' 30'' North , 27° 56' 10'' East
Latitude & Longitude (decimal):
Locality type:
Group of Quarries
Nearest Settlements:
Ylämaa1,415 (2014)4.4km
Miehikkälä2,506 (2014)17.6km
Vainikkala400 (2015)23.1km
Virojoki1,328 (2015)25.2km
Luumäki5,305 (2014)25.5km

Located about 30 km SSW from Lappeenranta and 6 km SW of Ylämaa. Famous for excellent "spectrolite" ("spectrolite" is a variety of labradorite used as a gemstone).

According to Gübelin & Wolgensinger (1976), "the locality was discovered by a Finnish mineralogist who stumbled upon granite blocks which contained labradorite crystals during the Finnish-Russian campaign in the winter of 1939-1940 during the construction of border fortifications."

Note: there appear to be several quarries in the region, therefore, the GPS coordinates are approximate.

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

Formula: Ca(Al2Si2O8)
Reference: Hytönen,K. (1999): Suomen Mineraalit. Geologian tutkimuskeskus. Erillisjulkaisu, Jyväskylä, 399 pp.
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Gübelin, E., Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel [in Dutch].; Hytönen, K. (1999) Suomen Mineraalit. Geologian tutkimuskeskus. Erillisjulkaisu, Jyväskylä, 399 pages.
Anorthite var: Spectrolite
Reference: Gübelin, E., Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel [in Dutch].

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
var: Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
var: Spectrolite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]

List of minerals arranged by Dana 8th Edition classification

Unclassified Minerals, Mixtures, etc.
var: Labradorite-(Ca,Na)[Al(Al,Si)Si2O8]
var: Spectrolite-(Ca,Na)[Al(Al,Si)Si2O8]

List of minerals for each chemical element

O Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
O AnorthiteCa(Al2Si2O8)
Na Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Al Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Al AnorthiteCa(Al2Si2O8)
Si Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Si AnorthiteCa(Al2Si2O8)
Ca Anorthite (var: Labradorite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca AnorthiteCa(Al2Si2O8)


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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Gübelin, E., Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel [in Dutch].

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

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