Your Cart


Silicosis can kill, but exposure to silica dust is preventable. SafeWork NSW is spreading this message by educating workers and the public about the risks of exposure

What is Crystalline Silica?

When products or materials containing crystalline silica are cut, sanded or drilled into, a very fine dust is created. This dust is harmful when inhaled and can lead to silicosis. Silicosis can be fatal within five to 10 years sometimes for people as young as 20 or 30.

Where is Crystalline Silica found?

Engineered materials containing silica, such as manufactured stone.

Typical crystalline silica levels in different materials are:

  • sand and sandstone: 70-100%
  • manufactured stone: 93% or higher
  • granite: 20-45% (typically 30%)
  • concrete and mortar: 25-70%
  • calcium-silicate bricks: 50-55%
  • slate: 20-40%
  • brick: up to 30%
  • fibre cement sheets: 10-30%
  • demolition dust:3-4%
  • marble:2%
  • limestone: 2%

More about crystalline silica

Learn more about crystalline silica harms, where it’s found and other relevant publications please click here


Comments posted to this page are moderated for suitability. Once your comment has been checked it will be uploaded to the site.

Terms and Condition

These Terms and Conditions must be read in conjunction with TLA’s Privacy and Copyright Policy Statements.

Descriptions of contracts contained on this website are a guide only and do not outline a specific fitness for purpose. The Landscape Association gives no representation or warranty about suitability of a particular contract for a specific function.

The Landscape Association does not accept responsibility for loss or damage suffered by any person or body relying directly or indirectly on any information contained within the pro forma contracts or the LNA Master Landscapers Rates Guide Schedule of Rates for Landscape Works. All contracts and Guides are purchased at the risk of those making the purchase.

TLA does not have access to the customer’s credit card number which is encrypted for security purposes. The credit card will be debited at the time of processing the payment. A tax invoice/receipt will be automatically generated and emailed to the customer.

Orders are ordinarily dispatched by Australia Post, Express Post, within seven working days. Five days should be allowed for delivery. This timeframe is indicative only. Every reasonable effort will be made to notify the customer if a delay is expected.

Provided an order has not been dispatched, it may be cancelled in full or part by calling The Landscape Association on (02) 9630 4844. Returns are not accepted by The Landscape Association unless the customer has received an unordered or faulty item, or unless otherwise required under Australian legislation.

The Landscape Association reserves the right to change these terms and conditions at any time.

a a a