Baltic red
Baltic Red is a granite that is quarried on the Finnish southeast coast on the border with Russia in the Hamina province between Ruotila and Sippola . This natural stone is sold worldwide. Baltic Red was formed 1.2 billion years ago in the Precambrian .
Names
Baltik Rot , or Baltic Red (English) and Rosso Baltico (Italian) are based on the name Baltikum , a geographical and historical area on the east coast of the Baltic Sea south of the Gulf of Finland , where the rock is located.
Geology, rock description and mineral inventory
- Main article : → Rapakiwi
Baltic red originated in the Precambrian when plutons penetrated the lower earth crust and crystallized over millions of years, forming large feldspar crystals . In terms of rock science , Baltic red is a pyterlite in which the potassium feldspars are not coated with oligoclase , for example in contrast to the Baltic brown , a vyborgite.
Baltic Red is one of the Rapakiwi granites, which are represented by large, round red to reddish large crystals and can reach a size of 4 to 5 cm. The mineral crystals are randomly distributed throughout the rock, in which biotite is almost always embedded. Around the large crystals there is a border of red potassium feldspars, quartz and biotite.
Dismantling and use
In 1970 a quarry for Baltic Red was opened, which is still in operation today.
Baltik Red can be found regionally in the architecture of cities in southern Finland and in the Saint Petersburg region . This granite is exported worldwide and is often used overseas in the USA and Australia as facade panels and is often used in Germany for facades and tombs, but also for floor and stair coverings, kitchen worktops and washbasins.
Baltic Red is frost-resistant and can be polished.
See also
Individual evidence
- ^ Friedrich Müller: INSK compact. The international natural stone index for the current market . Sheet 19.4. Ebner Verlag, Ulm 1977
- ↑ finska.gsf.fi : One hundred years of granite - 1900-2000, in English, accessed on May 15, 2011