sinkkikivilän

Sinkkikivilän is a Finnish geological term used to refer to a zinc-bearing rock unit or ore locality. The toponym is formed from sinkki, zinc, and kivilä, stone or rock, with the suffix -n indicating a possessive or attributive form in Finnish geographic names. In geological literature, the name is applied to specific outcrops that display zinc mineralization and associated sulfide minerals.

Geology: The unit commonly hosts sphalerite, often with galena, pyrite and quartz, within a metamorphic or low-grade metasedimentary host rock. The coloration and alteration vary; ore lenses may be disseminated or bedded. The genesis is often discussed in terms of hydrothermal fluid activity during Precambrian tectonics in the Fennoscandian Shield, though local variations exist.

Distribution and research: Sinkkikivilän outcrops have been identified in several areas of Finland and have been used as reference localities in geological mapping and mineral resource assessments by the Geological Survey of Finland (GTK). The deposits are generally small and of limited economic value today, but they contribute to understanding regional metallogeny and zinc mineralization processes.

Further information is provided by educational and governmental resources on Finnish metallogeny and the Geological Survey of Finland.