- Solnhofener Natural Stone
Jura Marble - Jura Limestone
Jura Marble or Jura Limestone are the trademarks of a beige, grey (grey-blue) Limestone which is found in the Franconian region, just north of upper Bavaria in the south of Germany.
The main quarrying area is the region around the villages Titting-Kaldorf-Petersbuch. The limestone has a very fine graininess and in addition contains fossils. Mostly the fossils are algae, ammonites, siliceous sponges and Belemnites. The Jura Limestone formed approximately 175 million years ago. This time is described as the upper Malm, which is also described as the earth's middle age. Economically, it is the most important stone in Germany.
The depth of the quarries is approximately a maximum of 50 meters. The layers of the Jura (the Jura is a sedimentary stone) are up to 1.50 meter high, which also makes it possible to quarry this stone in blocks. The layers are divided from each other by thin clay layers. The layers are quarried by drilling and splitting machinery into suitable block sizes. We have to consider special geological circumstances like cleaves and cracks within the layers.
Surfaces and colours of the stone
The colours of the Jura are beige, grey (grey-blue) and a mixture of these two colours (beige-grey).All surfaces illustrated and described in the following are alternatives for the stone.
History
Since the beginning of human colonization the Jura was used as building material. The stone was a very important element for building houses and castles for the upper classes. In addition due to the technical standards, the stone was mainly quarried in massive pieces for wall or basement constructions. The use of the stone in earlier times as a flooring material was seldom. Therefore, people mainly used the Fossilstone which was often used as flooring material for upper class buildings and churches.The production of flooring material with Jura raw materials was extraordinary hard in preindustrial times.
Usage
With the beginning of the industrial revolution the Jura Limestone found its way into daily construction work. Window sills, flooring material and steps were now also affordable for the middle classes. Nowadays, a lot of people in Germany associate the Jura Marble as the typical stone (flooring material) of the post war period.However, this natural stone is still being sold on the domestic market as well as on the international markets. We can offer and deliver a wide range of different surfaces and sizes.
