Thieves have stolen a valuable stone valued at $100,000 from a rural museum in northern NSW.
The 80 kg piece of quartz was stolen when an unknown number of people entered a museum in Tingha about 1am on Saturday.
The stone is described as being a dark brown smoky quartz grass stone and valued at an estimated $100,000, NSW Police said.
Police are appealing for information over the brazen robbery.
Officers attached to the New England Police District attended and established a crime scene.
Anyone who may have been in the area or has any information about the theft to contact Crime Stoppers on 1800 333 000.