On first glance, you might mistaken it for amber or topaz; but the unassuming mineral speck has value beyond measure. The stone itself was purchased in 2010 at a market in Chaung-gyi in Myanmar by ...

large crystals of topaz, as well as the recently discovered hsianghualite and baolite. The Mineral Deposits of China Hall displays specimens and geological maps and models, which illustrate the ...

has doubled its land package at the Topaz project in Minnesota from 2,089 to 4,181 net acres. The transaction saw Pulsar ...