Kaolínka

Kaolínka is a flooded former kaolin quarry in Přímětice, a district of Znojmo in South Moravia, Czech Republic. Today the site holds the status of a natural monument (přírodní památka), covering 5.05 hectares on the Jevišovice Plain at an elevation of 310–320 metres above sea level. For locals it is both a geological curiosity and a small pocket of wild nature right on the edge of town.

Where does the lake come from?

Kaolin mining at this location began after 1953 and ceased in the 1970s. The raw material extracted here was used mainly for sanitary ceramics — sinks, bathtubs, and similar everyday porcelain products. Once mining stopped, the pit gradually filled with water, forming the lake that now dominates the landscape of Kaolínka.

What exactly is kaolin?

Kaolin is a whitish, unconsolidated rock made up mainly of the mineral kaolinite together with fine quartz grains. It formed through tropical weathering of the underlying biotitic gneiss roughly 60–70 million years ago, when heat and moisture broke down the feldspars contained in the bedrock. The deposit near Znojmo is considered unique for this part of Moravia. Kaolin ranks among the most important non-metallic raw materials mined in Czechia; besides sanitary ceramics and porcelain, it is also used in papermaking, paint production, and construction, for instance in fire-resistant bricks and plasters.

What lives in Kaolínka today?

Despite its industrial past, the site has renaturalized and is now valuable for conservation. The lake and its surroundings are home to the great crested newt (Triturus carnifex), a critically endangered species found in only a handful of locations across Czechia — a fact that alone justifies the site's protected status. Wetland-adapted plants also grow around the water, including marsh helleborine and variegated horsetail, both indicators of the area's healthy ecological condition.

Can you visit?

Kaolínka lies within Přímětice, now part of Znojmo, making it easily reachable for residents of the town and the surrounding area. Because of its natural monument status, visitors should respect the site's conservation rules, particularly given the protected amphibian and plant species living there. It is a place where the history of local kaolin mining meets its present-day role as a small nature reserve.

Frequently asked questions

Is Kaolínka a natural lake? No — it is a flooded former kaolin quarry, mined from 1953 until the 1970s.

Why is Kaolínka protected? Because it hosts the critically endangered great crested newt along with rare wetland plants such as marsh helleborine and variegated horsetail.

What was the kaolin mined here used for? Mainly sanitary ceramics; kaolin in general is also used in papermaking, paint production, and construction materials.

How large is the protected area? The natural monument covers 5.05 hectares and sits at an elevation of 310–320 metres on the Jevišovice Plain.