Bluestone Garden Capping Tiles

About Bluestone in Melbourne

Bluestone in Melbourne

Bluestone is the local Victorian name for Basalt, which means a volcanic rock. Bluestone is a very hard and durable stone. It has many qualities making it an outstanding paving solution. There are also many different qualities to examine before buying your Bluestone, (in other words not all bluestone is the same)..

  • Colour: The colour of bluestone varies, and this also helps determine the final price. Generally the attractive blue/grey type costs a little more than the flat grey varieties.
  • Type of finish: The surface of the Bluestone tiles can be sawn which leaves it with a rougher and more non slip surface. It can also be honed which makes it smoother and generally brings out the dark colours. Bluestone can be honed right up to a semi polished or polish finish, due to the inherent hardness of the stone.
  • Distribution of “cats paw.”: Bluestone has little holes in the surface which were created as the hot volcanic rock cooled down. Some types of Bluestone are very compact (without any small holes); although this is not always considered an advantage aesthetically as the final result may be too plain for some applications. Cats Paw is a word used to explain a pattern of slightly larger holes running through some of the tiles and is generally considered very attractive when it is present in the right quantity.
  • Thickness: The thickness of the stone helps determine its longevity, after it has been fixed into position. Some companies will suggest a 15mm thick Bluestone for exterior use, however we suggest 20mm should be the minimum thickness for external use. 20mm Bluestone tiles perform well in driveway applications and general landscaping as its additional thickness and therefore strength, allows for expansion and contraction and improved impact resistance. We also stock 30mm tiles for commercial applications, when a thicker tile is required.

Bluestone is used effectively for driveways, patios, pool surrounds and interior applications. Bluestone is a traditional stone and has been used in Melbourne since our inception and due to its colour and quality is used extensively in modern building applications.

Basalt Boulders For Tiles Cutting

Bluestone Pavers And Tiles from Edwards Slate & Stone

Edwards Slate & Stone has implemented a quality control procedure from selection of Bluestone blocks to cutting and packing in the factory and finally delivery to our warehouse at 12 Lionel Road Mt. Waverley.
This ensures all the Bluestone/Basalt tiles sold through Edwards Slate & Stone is of a high standard.

Bluestone Pavers And Tiles from Edwards Slate & Stone

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Basalt Round Pavers

Basalt or Bluestone

Victorians have a local name for Basalt which is Bluestone. Basalt/Bluestone is a blueish grey stone used in building. Basalt is a volcanic rock which has been formed from the rapid cooling of lava. It has been used in Victoria as building stone since our inception and can be seen in many of our early buildings and churches.

Basalt or Bluestone?

Basalt is defined by its mineral content and texture, and physical descriptions without mineralogical context may be unreliable in some circumstances. Basalt is usually grey to black in colour, but rapidly weathers to brown or rust-red due to oxidation of its mafic (iron-rich) minerals into rust. Although usually characterized as “dark”, basaltic rocks exhibit a wide range of shading due to regional geochemical processes. Due to weathering or high concentrations of plagioclase, some basalts are quite light coloured, superficially resembling rhyolite to untrained eyes. Basalt has a fine-grained mineral texture due to the molten rock cooling too quickly for large mineral crystals to grow, although it is often porphyritic, containing the larger crystals formed prior to the extrusion that brought the lava to the surface, embedded in a finer-grained matrix.

There are two distinct building materials called “Bluestone” in Australia. In Victoria, what is known as bluestone is a basalt or olivine basalt. It was one of the favoured building materials during the Victorian Gold Rush period of the 1850s.

In Melbourne it was extracted from quarries throughout the inner northern suburbs, such as Clifton Hill, Brunswick and Coburg, where the quarry used to source the stone for Pentridge Prison is now Coburg Lake. Bluestone was also sourced in many other regions of the Victorian volcanic plains, and used in towns and cities of central and western regions, including Ballarat, Geelong, Kyneton, Port Fairy and Portland. It is still quarried at a number of places around the state.

Ref Wikipedia

Bluestone honing machine disc

Where do Bluestone pavers come from? Part 6

The purpose of this machine is to remove any visible surface saw marks on the Bluestone. Various degrees of honing can be achieved using different discs with varying abrasive properties to achieve a lightly honed to polished finish.

Lead time for your Bluestone project

A good supplier of Bluestone will hold at least three months stock to allow for fluctuation in demand. However stocks can deplete quickly and suddenly as the average size of a Bluestone project can be large. It is wise to order around 4 to 6 weeks prior to project commencement.

Bluestone church – St. Peters and Pauls Church

Basalt is a very hard and dense volcanic rock, which has been used in construction since our foundation. In Victoria we call Basalt by a local name “Bluestone“. The Saint Peters and Pauls Church on the corner of Montague St. and Bank St. is an wonderful example of the use of local Victoria Bluestone.

Bluestone Honed Step Tile

Selected Edwards Bluestone Tiles & Pavers

There are many different types of Bluestone, the colour, quality and essential aesthetic beauty varies according to where the Bluestone has been quarried.

Our Bluestone is exclusive to Edwards Slate & Stone and only available from our Mt.Waverley showroom/warehouse.

Our Bluestone has been carefully selected:-

1. Suitable for Australian conditions and fixing methods.

2 Aesthetic beauty and colour. Just the right amount of “cats paw” (little surface holes) are present to add interest. This Bluestone closely resembles Australian Bluestone, which is known for its aesthetic value as well as inherent quality.

In addition Edwards Slate & Stone is the only company to operate a quality control system from sourcing the raw material, cutting and processing to packing. This allows us to maintain a high standard of quality to the Australian public.

All our Bluestone is in stock and we invite inspection prior to purchase.



Basalt rock formed by molten lava

David Attenborough talks about the formation of Basalt (Bluestone)

David Attenborough talks about the formation of Basalt (Bluestone)

Bluestone Drop face tiles

Bluestone Paver Sizes

Bluestone Paver Sizes – How To Choose Dimensions

By choosing Bluestone paver sizes you will have an opportunity to choose from a wide variety of tile dimensions.

This is an important consideration, as the tile size plays an important role in determining the final result. In the past, the general rule of thumb was small tiles for small areas and large tiles for large areas.

However this is not the case for Bluestone. Large tiles formats are often used for small areas with dramatic results. For large external areas a tile of at least 500x500mm or greater works best. Common sizes for Bluestone are 500x500mm, 600x300mm, 800x400mm, 600x600mm and 1000x500mm.

Uses for Basalt

While it isn’t as widely used as limestone or granite, basalt does have some uses. It can be used for structural building materials, like bricks or foundations, and sculptures. Certain shapes of basalt can be used for cobblestones and exterior road or landscape materials. And when it is heated and processes in a certain way, it can produce a product known as stone wool, which is used as a thermal insulating product. Samples of basalt from the moon and Mars are most frequently seen as museum samples or in high-end personal rock collections.

Ref Source: what is Basalt

Basalt Crazy Paving Bluestone Pavers

Sealing Bluestone Pavers

Sealing Bluestone Pavers

When sealing Bluestone pavers or tiles, do not use hydrochloric acid to clean. When using coloured grout, always pre-seal the tiles prior to grouting, to minimise colour leaching into the tile. Sealing also reduces mineralisation in the stone (occasional iron pyrite reacting with water).

Sealing stone has many advantages, it provides protection from stains, facilitates easy clean up, reduces the effects from chemical attack and can enhance the beauty of the stone. Sealing stone can extend its life and as well reduces the effects of oxidisation by reducing the movement of water through the stone.

There are two main types of sealers, the first is an invisible penetrating type, which leaves the stone with a natural look. The second enhances the colours within the stone. The price of the sealers varies considerably according to its longevity and its application. For this reason, we always suggest seeking professional advice before making the final selection.

We always suggest sealing natural stone around a swimming pool coping, this is because swimming pools can contain salts and other chemicals, which can leach into the surrounding areas. There are different types of sealers for various applications.

Natural Stone Sealers

At Edwards Slate & Stone we stock two different brands of professional stone sealers. This means we can help you make your final decision based on, application, aesthetic finish, longevity and budget.

Dry Treat Sealers

Dry Treat is backed with a 15 year warranty. It includes a very good quality penetrating sealer for pool surrounds as it protects stone from chemical attack.

Tasman Chemicals Sealers

Tasman provides a range of quality sealers that are more budget orientated.

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