Yes it is
Fossilized monkey puzzle tree.
Whitby jet is fossilised Monkey Puzzle tree . It is used in Jewellery, it is a black stone
A tree fossilized by petrification process becomes a stone fossil
Chile
Yes, amber is a natural stone. It is fossilized tree resin that has hardened over millions of years.
see ~ http://www.asadoargentina.com/monkey-puzzle-nut-recipe/
15 cm
Chile pine
150 yrs
10 to 15 years
Chile Pine The botanical name is Araucaria araucana.
Amber is fossilized tree resin. Jade is stone .