Due to its cloudy pattern, the black slate from India is particularly suitable for large-area applications, in- and partially outdoors. Moreover, due to its veined structure, the material is ideal for naturally elegant spaces.
description material type
Slate is a homogeneous metamorphic rock. It consists of many slabs and leaflet-like structures pressed together. Slate is mostly composed of clay minerals (phyllosilicates), quartz and feldspar. Subordinated and in many cases eponymous minerals from the mica group such as chlorite (chlorite schist) and garnet (garnet-mica schist) occur. The color of the slate varies with the composition and the contained minerals from grey to black, green and blue as well as silver and whitish. The rock can be used indoors and outdoors.
technical information*
type of rock Slate
origin India
color Black
petrographic denomination Phyllite
characteristics Cloudy, Veined
acid resistance no
application field interiors and partly exteriors
compressive strength (MPa) 143
flexural strength (MPa) 48,04
frost resistance partly
water absorption (%) 0,09