Kamenolom Žlutava
Geology
The sandy sediments gave rise to:
- quartzite
- argillous sediments
- and sandy argillite slate.
Slate metamorphosed to crystalline slate, and lime sediments turned into
crystalline limestone and dolomites, together labelled as marble. They form
tiles or dentilated structures and are mostly compact. They tend to be whitish
or in various colours, depending on the contaminants they contain. The
contaminants tend to manifest in concentrated form as stripes, often with a
furrow structure. 
Depending on the ratio of calcite to dolomite, or carbonate to
silicate, we distinguish a number of variants: crystalline limestone, dolomitic
limestone, calcitic dolomites; largely uncontaminated marble transmutes into
erlans poor in carbonates, etc. Crystalline limestone with dolomitic
contamination is prevalent; uncontaminated crystalline limestone is relatively
rarer, as is uncontaminated dolomite.
In the last two centuries, crystalline limestone was intensively quarried.
The quarry walls often exposed karst caves with sparse stalactite and stalagmite
decoration. In 1954, a survey registered 21 caves, mostly in the quarry walls.
Pec is the longest cave with 87 metres. Roušarova cave in the middle section
of the quarry is also well-known. The largest underground hall is in the cave
Velký dóm, where stalactites and stalagmites take up 24×14 m. 
