Agate Gemstone

Australia · 1973 · 7¢

This Australian definitive stamp from 1973 features a detailed illustration of an agate, a banded gemstone composed of chalcedony and quartz. It belongs to the 'Marine Life and Gemstone Life' series.

Issued as part of a definitive series, this stamp highlights Australia's rich natural resources by showcasing a prominent gemstone. Definitive stamps serve as the backbone of a nation's postal system, often reflecting cultural or natural heritage.