Ground Gabbro Slab 30x30

A slab for rubbing pigments with a binder.

Either pick-up or paid delivery only.

Dimensions: ~30 x 30 cm. Thickness: 17-20 mm. Hand-cut, so slight variations may occur.

The surface is lapped, matte on one side and glossy on the other.

• Chemical description: Intrusive rock Gabbro

• Hardness on the Mohs scale: 6-7

• Igneous plutonic rock of basic composition, normal alkalinity.

• Alkali Resistance: 5

• Lime Resistance: 5

• Acid Resistance: 5

• Suitable for all substances (except strong hydrochloric or sulfuric acid)

• Black, uniformly grained

• Melting Point: 1250 degrees Celsius

A natural rock, Karelian gabbro possesses exceptional strength and durability. It's no wonder it's used as a finishing material for the exterior cladding of metro stations and buildings, for decorative panels and interior details, and in garden and park design. Gabbro is a highly wear-resistant stone; it's not susceptible to temperature fluctuations, frost-resistant, chemically stable, and light-resistant, as our pigment from this rock demonstrates.

After polishing the surface, the natural shine and noble iridescence of gabbro suggest that the stone is not only original but also long-lasting.

In terms of its technological properties, gabbro is a rock similar to basalt (an effusive analogue of gabbro). Its sanitary and hygienic properties allow it to be used in construction, and thanks to its excellent thermal conductivity, it is successfully used in saunas and baths. Therefore, gabbro can confidently be considered a completely non-radioactive rock, suitable for interior finishing.

Being a virtually unique rock in its physical properties, gabbro, unlike granite, is mined from only three deposits. Major gabbro quarries are located in Karelia (the deposit is located on the southern shore of Lake Onega), the Urals, and the Kola Peninsula. Gabbro is also mined in Australia and Ukraine.

With low moisture absorption, gabbro is unaffected by moisture, and the porosity of the stone means it absorbs even less moisture than granite. Gabbro has a very high density and is a very durable rock. Its low abrasion resistance means it will retain its magnificent appearance and stability for centuries.

Gabbro has a high tensile strength and can withstand even heavier loads than granite.