The coins also has a authentic fragment of the meteorite inlayed on the coin. Gosses Bluff (Gosse's Bluff) is thought to be the eroded remnant of an impact crater.
Known as Tnorala, it is located in the southern Northern Territory, near the centre of Australia, about 175 km (109 mi) west of Alice Springs and about 212 km (132 mi) to the northeast of Uluru (Ayers Rock). It was named by Ernest Giles in 1872 after Australian explorer William Gosse's brother Henry, who was a member of William's expedition.
Coins comes with a certificate of authenticity from the Mint of Poland presented in a prestige wooden box with a custom sleeve. Metal: 999 Fine Silver Finish: Copper Plated & Antique Finish Diameter: 38.61 mm Features: Ultra High Relief (2mm) with a Real Henbury Meteorite Denomination. NZD Year of Issue: 2017 Mintage: 666 Weight: 1 Troy oz.