Explainer: The world of gemstones

Update: 2025-10-15

Description

Ben Kennedy is a Professor at the School of Earth and Environment at the University of Canterbury. and joins Emile Donovan.

Comments

In Channel

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Waitomo flooding update

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Sandy and Robin Toy: caring for Kahurangi

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RNZ Pacific News at 10am on 16 October 2025

2025-10-1509:07

Morning Report Essentials for Thursday 16 October 2025

2025-10-1528:30

UK correspondent Natasha Clark

2025-10-1511:14

New Zealand arts and literary journal marks its 250th issue

2025-10-1510:32

How good gut bugs could help you sleep

2025-10-1514:46

'A man of integrity': Tā Tipene O'Regan reflects on Jim Bolger

2025-10-1513:25

RNZ Pacific news at 9am for 16 October 2025

2025-10-1508:29

North Island brown kiwi named Joker makes dramatic entrance

2025-10-1505:39

Awakino locals in clean up mode

2025-10-1503:56

Warehouse Group ends shipping to Great Barrier, Chatham Islands

2025-10-1504:06

Sports Chat for 16 October 2025

2025-10-1502:34

Market Update for 16 October 2025

2025-10-1501:50

Credit card mistakes that can cost you money

2025-10-1503:44

Onus is on farmers to reduce methane emissions

2025-10-1507:39

Sir John Key pays tribute to Jim Bolger who died on Wednesday

2025-10-1507:01

Sports News for 16 October 2025

2025-10-1501:09

RNZ Pacific news at 8am for 16 October 2025

2025-10-1506:43

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Explainer: The world of gemstones

#box-pro-ellipsis-176056710849179{-webkit-line-clamp:2;}Explainer: The world of gemstones

Explainer: The world of gemstones

Explainer: The world of gemstones