Bluestone is not a geological term, but rather a word for any form of rock that, by means of geological-specific conditions, is blue in colour. Bluestone gets its colour from the different minerals that have fossilised into the rock during formation. In Australia there are two varieties of bluestone, one found in Victoria and the other in South Australia. The Bluestone in Victoria better known as ‘Victorian Bluestone’ is a kind of basalt.
Basalt is an igneous rock made up primarily of feldspar and is usually grey to black and fine-grained due to rapid cooling of lava on the surface of a planet. This bluestone was a highly favoured building product during the gold rush and is seen throughout the streets and homes throughout the city and country side of Victoria. Victorian bluestone was extracted from quarries in the city areas of Coburg, Clifton Hill and Brunswick, as well as from more regional parts of Victoria including Ballarat, Geelong, Kyneton, Port Fairy and Portland. In South Australia the name Bluestone is given to a type of slate which is much less durable than Victorian bluestone, but was valued for its decorative appearance. The colour of this Bluestone is usually pale grey to beige in colour and was formed as a metamorphic rock which is mostly made up of quartz.
In other parts of the world, the name Bluestone can used for various limestones and also some sandstones. Chinese bluestone is generally a grey limestone which is a sedimentary rock made up of minerals calcite and aragonite, which are different crystal forms of calcium carbonate.
Feel free to ask us for any other details you’d like to know on the various bluestone products we supply.
- Where is your Bluestone from?
We supply a very large range of Bluestone from various regions throughout the world. Each bluestone has its unique tonings, textures and features. Please visit our showroom to explore the various types of Bluestone to select which is best for you.
- What are the benefits of choosing Bluestone?
Bluestone is an extremely popular product in the landscaping industry, and will add immediate value to your home. It can be seen throughout the city of Melbourne, and offers a timeless appeal to any application. As a paving material, Bluestone is an extremely durable, slip resistant, hard wearing, colour fast and easy to lay product. It offers various colours throughout its range, from soft light blues, to stormy grey tonings. Bluestone is a very versatile material, and is suitable for pool areas, patios, paths, steps, indoor and outdoor flooring, wall cladding, bathrooms, fireplace hearths, bbq benchtops and more.
- What is the difference between bluestone pavers, tiles and coping?
Pavers are stone tiles which are usually 20mm + in thickness and for outdoor applications. Tiles are normally less than 20mm in thickness and great for areas that have height or weight restrictions.
Coping is the cap or edging that is placed around the top edge of a swimming pool, and often used for steps and retaining walls.
- What thickness Bluestone should I use for my project?
We supply a wide range of thicknesses that suit many applications. 10mm tiles are generally best used for wall cladding, bathroom and indoor floors and areas that have height and weight restrictions. 20mm is our most popular thickness for paving and is perfect for all budgets. This thickness is best used when it is being laid on a concrete base or glued down on even, level surfaces. 30mm is great for heavy traffic areas or when they are being laid on a sand and crushed rock base. 40mm is ideal for driveways. We also supply 60 & 80mm pavers which meet Council sizing regulations.
- What surface finish is available in your Bluestone?
The main two finishes available are either sawn or honed. We can supply other finishes as required, including Flamed, Sandblasted, Polished and more. Lead times for custom orders may apply for some finishes.
- Which surface finish will suit me the best?
The most suitable finish will be determined by the application you require the stone for. For paving around wet areas such as pools, we recommend a sawn paver to ensure a good slip resistance. Honed paving and tiles offer a darker appearance to the stone, and are great for use for walling, bathroom areas and custom stone such as fireplace hearths. For slip rating tests, please contact our office.
- Is sealing required for my Bluestone tiles?
Bluestone does not necessarily require sealing, and if left unsealed it will develop a natural patina over time. It will depend on the area it is being installed and the requirements of the client. For information and recommendations on which sealer to use for your stone, please contact our experienced team members.
- Should I seal my Bluestone before grouting?
You may pre-seal if you wish, but it is not absolutely necessary. How do I clean cement residue off my Bluestone from grouting? To remove the cement residue off your Bluestone, we recommend using Guardit GAR (Green Acid Replacement) at 10 parts water to 1 part GAR. Apply using a stiff brush, then rinse before sealing.
- How do I remove white marks (efflorescence) from the stone?
To remove the cement residue off your Bluestone, we recommend using Guardit GAR (Green Acid Replacement) at 10 parts water to 1 part GAR. Apply using a stiff brush, then rinse before sealing.
- How do I remove rust marks from the stone?
We recommend using a new product from Guard It Solutions called GuardIt MVR. Apply a thin light coat and leave the stain to disappear. Please see the product PDS for further information.
- Will sealing of Bluestone change the color of the stone?
This will depend on the sealer you are using and whether it is solvent based or water based. If you want to keep the Bluestone the same colour as it is, we recommend using a water based sealer such as Porous All Stone penetrating sealer by Guard It Solutions. If you are looking to enhance and darken the colour of your Bluestone, we can supply you with our Revive and Seal’ enhanced colour sealer by Construction chemicals. Please contact us for further advice.
- What is the estimated cost involved in installation of bluestone?
The price of installation will vary depending on paver size, thickness, site preparation, site access and the quality of the job. Contact our office for our list of recommended installers