Pablo Holcer tests out a VR system made by Neurable that allows the user to control with their thoughts as the EEG headset interprets thoughts into actions in the VR environment at SIGGRAPH 2017 in Los Angeles, California, July 31, 2017. (Photo by Mike Blake/Reuters)

Models Lara Stone, Doutzen Kroes, CEO of l'Oreal Cyril Chapuy, Actress Eva Longoria, Models Karlie Kloss and Isabeli Fontana attend amfAR's 22nd Cinema Against AIDS Gala, Presented By Bold Films And Harry Winston at Hotel du Cap-Eden-Roc on May 21, 2015 in Cap d'Antibes, France. (Photo by Pascal Le Segretain/amfAR15/WireImage)

Mexican-American actress Salma Hayek visits Pompeii in the second decade of January 2024. (Photo by salmahayek/Instagram)

New Zealand singer and songwriter Kimbra Lee Johnson showed off her ageless appearance in a new photo shoot early February 2024. (Photo by Spencer Ostrander)

A Hindu devotee offers prayers during Shivaratri festival at Sri Parvathi Jadala Ramalingeshwara Swamy Devastanamu, in Narketpally, India, Wednesday, February 26, 2025. (Photo by Mahesh Kumar A./AP Photo)

American actress and model Barbie Ferreira in the second decade of April 2025 pouts for a selfie. (Photo by barbieferreira/Instagram)

Migle Politike (left) with son Aaron and friend Goda Zubkaityte on Wednesday, June 11, 2025 stop to look at the Singing Ringing Tree, a musical sculpture designed to look like a windswept tree, at Crown Point overlooking Burnley, Lancashire, UK. The wind-powered musical sculpture emits a low, tuneful song when the wind blows. (Photo by Martin Rickett/PA Wire)

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.