Sugar gliders, Candy and Popcorn, enjoy their favourite food, Nectar, at Wild Life Sydney Zoo on February 14, 2017 in Sydney, Australia. The treat made up of honey, high protein baby cereal and egg yolks is the human equivalent to chocolate to the Sugar Gliders. St. Valentine's Day or the Feast of Saint Valentine began as a celebration of the early Christian Saint Valentinus. From the 18th Century onwards it has steadily transformed into a celebration of romantic love and sentiment in many countries around the world. (Photo by James D. Morgan/Getty Images)

Couples take part in a competition during a mass wedding of 64 doctoral student couples at Harbin Institute of Technology, a university in Harbin, Heilongjiang province, China, June 4, 2017. (Photo by Reuters/Stringer)

“Unexpected humour”. The Dog and the Faucet, in Kolkata, India on January 2017. (Photo by Pau Buscató/The Guardian)

A model presents a creation from the JianShangYun collection by Chinese designer Shuo Jiang at China Fashion Week in Beijing, Thursday, March 30, 2023. (Photo by Mark Schiefelbein/AP Photo)

Performers from “New Baby Junior Dance Crew” take part in a parade on the first day of the Lunar New Year of the Snake, in Hong Kong on January 29, 2025. (Photo by Lam Yik/Reuters)

A woman jumps over a puddle of rainwater in north London on August 2, 2023. Met Office has issued a yellow severe weather weather for heavy downpours, strong winds and thunderstorms throughout today in London, and in many other parts of England and Wales. (Photo by Dinendra Haria/London News Pictures)

A dog jumps into the air to catch a ball along the beach near the County Kerry village of Rossbeigh, Ireland, February 4, 2018. (Photo by Clodagh Kilcoyne/Reuters)

There is an endless bounty of eye-catching gemstones throughout the world and this spectacular boulder opal is one unique beauty that looks like a shimmering crystal encased in a tree fossil. Its opalescent sheen seeps through the cracks of the seemingly wooden rings in lustrous hues of emerald green and aqua blue. Like something out of a fairy tale, the triangular piece radiates through an organic pattern mimicking the growth rings of tree.