Request stone sample Description of natural stone

Steigerwald-Quarzit

light-grey sandstone

honed

“Steigerwald Quarzit” is particularly acclaimed for its proven, frost-resistant quality and fascinating appearance as well as for its characteristic colour and texture. From façades to flooring and staircase slabs, “Steigerwald Quarzit” is an ideal building material thanks to its good physical and technical properties including remarkable abrasion resistance. Its tested and certified resistance to weathering is another major asset.

The “Steigerwald Quarzit” quarry has been in operation for several centuries now.

Regional “Steigerwald Quarzit” is a highly sustainable building material.

SURFACE FINISHES

honed

pneumatically-chiselled

machine-chiselled

hand-chiselled

point-chiselled

shot-blasted

machine split

Lines split 7 mm

Lines split 30 mm

Specifications

Further trading names

Steigerwald Sandstein, Ebracher Sandstein, Obersteinbacher Sandstein

Petrographic classification

Sandstone

Description

Light-coloured, fine to medium-grained sandstone from the Middle Keuper formation in the Steigerwald Forest/Lower Franconia (Germany).

Mineralogical composition

Quartz (ca. 66%), quarzite (ca. 6%), plagioclase feldspar (ca. 2%), alkali feldspar (ca. 14%), iron minerals (ca. 4%), rock fragments (ca. 8%),

Structure

Light-grey to dunnish, fine to medium-grained sandstone with a uniformly to well-graded, layered texture. Occasional green inclusions.

Petrographic identification:

Light-coloured feldspathic sandstone with rock fragments and siliceous cementation.

Grain colours

Quartz:	translucent light-grey
Feldspar:	white-pink, flesh-coloured
Accessory minerals:	grey-black

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.