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Natural Colour Variations of Jura Limestone


Natural colour

Before looking at the colours in which Jura stone is quarried, it’s worth pausing for a moment to examine the diverse range of geological prints on the surface.

More than 150 million years old, Jura stone is known particularly for having many different fossils, shells and remnants of tiny sea creatures and plants which have been preserved for eternity into the rock. There are typically also very visible seams of quartz running through the stone, adding another dimension to its appearance.

It’s therefore important to emphasise that no matter what colour of Jura limestone you purchase, you won’t end up with a uniform appearance. For many people that is one of the attractions of the stone: the unique individuality and the knowledge that no-one else will be able to have exactly the same item made, regardless.

Therefore if you want to purchase some tiles where it’s imperative that you have a uniform appearance, Jura limestone would not be the right material for you.

Available colours

Jura limestone is available in two colours naturally: beige and a greyish-blue. This latter type of stone is typically just known as grey Jura limestone.

Although very different in appearance both of these types of stone are mined from the same quarry, having the same main attributes and strengths.

 A golden coloured Jura Limestone tile

Jura limestone comes from a rock bed which has 25 different layers and grey and beige rock may intertwine or invade slabs of the opposite colour. It’s therefore not uncommon to find a huge section of different coloured stone appear in another specimen.

Beige Jura limestone

This is possibly the more popular type of Jura limestone in the UK, coming in two particular variants - light and dark beige.

As a general rule, the variants in the surface colour can be much stronger in the beige, with a marked contrast being seen between the base colour, and red elements which scatter through it.

Jura beige limestone has found a particular demand in the UK where it is used far more frequently than grey Jura limestone, very often in external cladding projects on buildings.

Grey Jura limestone

Far more commonly seen in the US, grey Jura limestone is often a more popular choice for internal projects such as flooring. This is typically because a slightly darker colour is required.

Although each piece of Jura limestone will be entirely unique, there is usually less contrast between the markings with grey Jura. Although the same geological imprints and quartz seams can also be found, the effect is rather less.

Finishes

Although Jura limestone only comes in two colours, the end result and the complexity of the tones which arise will also depend in a great on the way in which it is finished.

Buffing the stone for either a polished or honed finish brings out the depth of colour and the small intricacies far more than erosive techniques such as sandblasting. Antiquing the surface can often disguise the overall colour and also make it much more difficult to see the fossils and other surface details too.

Conclusion

Both grey and beige Jura limestone offer a natural stone which is tough, durable with a very attractive surface colouring. Your choice will depend on the type of project you are doing and whether you need a light or dark stone to complement your design.

 

 

Image Credits: Wikipedia and Wikipedia