Queensland parents are seeking clarity over how authorities are dealing with potentially contaminated coloured sand that's sparked a national recall and the closure of multiple schools.

Almost 70 schools in Canberra and one school in Brisbane were shut on Monday after coloured sand containing traces of tremolite — a type of naturally occurring asbestos — was recalled.

Twenty-five public schools in Canberra will remain closed on Tuesday, while dozens will reopen or partially open.

Authorities confirmed on Monday evening several Catholic schools would be closed or partially closed in Tasmania in response to the issue. Loading...

For Gold Coast mum Janelle Wills, coloured sand is one of the main products her four-year-old son with "high sensory" issues uses on a day-to-day basis.

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