In September a cushion-shaped 5.44-carat Paraiba tourmaline ring flew past its US$60,000 upper estimate in auction at Bonhams ...
Artist uses natural crystals, stones and gems to create exploding celestial objects. The post 7 Jewel-Encrusted Sculptures ...
(Bloomberg) — Tourmaline Oil Corp. is now Canada’s largest emitter of planet-warming methane following a series of acquisitions in recent years. The company vented 3,862.5 cubic meters of natural gas ...