NOVA Treasures of the Earth: Gems (2016)
Douban
地球宝藏：宝石
director:
Kate Dart
/
Doug Hamilton
playwright:
Doug Hamilton
genre:
Documentary
region:
United States
language:
English
length: 53m
release date: 2016-11-02
IMDb: tt6213988
Overview
This program explains the formation, chemistry, variations and allure of the most notable gemstones; diamonds, emeralds, sapphires, rubies, jade and opals.