and specks of gold dust out of its crater regularly. While the gold particles may appear microscopic, the net quantity can make up about 80 grams of the valuable element, estimated to be worth $ ...

Mount Erebus is also spewing out gold dust, scientists discovered in the early 1990s. They spotted gold particles of up to 60 micrometers in the snow near the volcano. It releases around 80 grams ...

$700,000 worth of gold dust has been reported missing from a Pfizer medical ... Though Pfizer declined to comment on how it uses the gold, such particles can be used in drug delivery and ...

To select the best air purifiers, we focused on those that use high-efficiency particulate air (HEPA) filters, the gold standard for removing particles like dust, smoke and pet dander from the air ...