Our bildhau stones are natural stones in individual shapes & sizes, the dimensions & weights of which we cannot specify exactly in advance. You can choose your stone from different weight categories, in which the maximum price for a stone of the respective category is indicated. The stone supplied will be individually weighed and charged at the price per kilo stated here. The price charged will be lower than the maximum price of the respective category.
It is important to us that you receive exactly the material you need for your project. If you are looking for a stone with more specific dimensions (e.g. elongated, approx. 30 cm), please let us know in the message field at the end of the order process. We will endeavour to find a suitable stone for you. On request, we will send you a photo in advance for inspection. We charge a service fee of 9.50 euros for this service, which will be shown on the invoice.
Larger stones and cut-to-size pieces are usually also available for many types of stone. Please contact us by e-mail or telephone for a binding quotation.
Here you will find interesting information on calculating the weight of a sculptor's stone.
Very beautiful and characterful limestone that can be worked by hand and with a machine. It is challenging to carve as the stone varies greatly in hardness and has numerous pores (holes). We therefore recommend the stone primarily for free forms and less for figurative representations.
TECHNICAL DETAILS
| Origin: Iran | Iran |
| Degree of hardness Mohs | 2,5 |
| Appearance | light brown-grey, with strong line markings, banded |
| Structure | strongly bedded, firm bond |
| Water absorption | approx. 2.49 % |
PROCESSING
Travertine can be worked very well by hand with forged steel tools, such as point chisels and flat irons, as well as by machine. Due to its structure, travertine is not easy to work. The stone can be honed and polished.
Travertine can be placed outdoors. The stone is largely frost-resistant. A high-gloss polish will become matt over time if placed outdoors, as travertine, like all limestone, is not acid-resistant.
FURTHER INFORMATION
Travertines are sedimentary rocks that were formed in fresh water at springs, in lakes and rivers. Compared to other limestones, travertine is a very young rock; it was formed in the Pleistocene and is therefore 'only' around 1.7 million years old. The numerous pores, which are characteristic of travertine, could be formed by leached clay and sandstone deposits or by the inclusion of gases.
Silver-grey travertine limestone consists mainly of calcite; other components include iron oxide, silicon dioxide, sodium oxide and aluminium oxide.
Persian travertine is quarried in the north-west of Iran in the province of East Azerbaijan.
Stone is a natural product. We endeavour to reproduce the appearance of our sculpture stones as accurately as possible in the illustrations so that the character of the stone can be recognised. Ultimately, each stone is unique and the appearance may differ from the picture.
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