【Spencer, Ida】Spencer Opal Mine Idaho: 7 Powerful Trends Shaping 2026
Editor’s NoteThis article explores the growing significance of Idaho’s Spencer Opal Mine, a premier U.S. source for vibrant volcanic opals. We…
Geological Significance
【East Kimberl】Argyle Pink Diamonds: 7 Powerful Impacts Post-Mine Closure
Editor’s NoteThe closure of Australia’s Argyle mine in 2020 marked the end of an era for one of the world’s most significant sources of rare pink and…
【Sri Lanka】Purple Star Sapphire: Sri Lanka’s Sustainable Mining 2026
Editor’s NoteThis article introduces the rare and captivating purple star sapphire, a gemstone prized for its unique six-rayed star pattern and deep…