Request stone sample Description of natural stone

Epprechtstein Granit, grau

grey granite

polished

“Epprechtstein Granit” is particularly valued for its uses in natural stonework thanks to its proven quality and its distinctive colour and texture. Numerous historical buildings bear witness to this. The good physical and technical properties of this stone allow almost unlimited interior and exterior applications. Its tested and certified frost-salt resistance is another significant plus.

The Epprechtstein quarry has been in operation for several centuries. It is one of few quarries in Germany from which grey and yellowish granite can still be sourced today.

Regional “Epprechtstein Granit” is a highly sustainable building material.

SURFACE FINISHES

honed C120

honed C320

polished

satin finished

bush-hammered

shot-blasted

machine split

Lines split 7 mm

Lines split 30 mm

Specifications

Further trading names

Epprechtstein Granit, Fichtelgebirgsgranit

Petrographic classification

Granite

Description

Light-coloured, grey, grey-yellow to yellow medium-grained biotite muscovite granite from the Upper Carboniferous formation in the “Fichtelgebirge”.

Mineralogical composition

Alkalifeldspar (ca. 35%), quartz (ca. 32%), plagioclase (ca. 24%), biotite and chlorites (ca. 3%), muscovite (ca. 4,5%) and accessory minerals (ca. 1,5%)

Structure

Medium-grained, grey to pale yellow or yellow granite with a well-graded structure, grainy texture. Occasional minor grain size variations and black biotite nests.

Petrographic identification:

Medium-grained, grey to pale yellow or yellow granite with black biotite nests and a randomly oriented, grainy texture.

Grain colours

Biotite:	black
Feldspar:	beige, white to a pale pinkish-white, partly pink
Quartz:	translucent light-grey

Additional information

Request stone sample
Description of natural stone

Proof and confirmation of suitability by EC declaration of conformity, as well as CE marking available. We will be happy to provide you project related with references, test reports and further information.

The displayed stone samples illustrate the kind of material extracted from the quarry in question. As a natural material, stone is subject to variations in colour, texture and grain structure. It can also have natural inclusions, markings or veining. A typical stone patina may develop due to material-related or environmental influences.