LANGKAWI: A granite dropstone, said to be dating back a billion years, exists in a mudstone at Pulau Tepor, southwest of Langkawi.
Two British geologists, who used a radio-metric system to determine its age, discovered the stone 30 years ago.
Already a subscriber? Log in
Get 20% OFF The Star Digital Access
Cancel anytime. Ad-free. Unlimited access with perks.
