Put away your sifting pans and pick axes because there's a tree that grows the next best thing to money. Don't expect to ...

Spruce tree needles contain tiny gold particles — and they could indicate large gold deposits beneath the surface.

Rapid height growth may positively influence fiber length in Swedish spruce wood. A case study investigated wood samples from 38-year-old Norway spruces (Picea abies) in one of Sweden's most naturally ...