Amethyst.
Yellow Stone Park
It was called Yellowstone National Park.
national stone
I am pretty sure that they do not have a national stone
The geyser called Old Faithful.
The national stone of Antigua and Barbuda is called "Antiguan Black." This unique stone is a type of volcanic rock characterized by its dark color and is often associated with the island's geological history. It is used in various forms of construction and as a decorative stone, reflecting the cultural heritage of the nation.
Florence Stone Fevergeon died on October 7, 2011, in Costa Mesa, California, USA.
Yellow Stone National Park is located in Wyoming
Germany does not have an officially designated national stone. However, amber has been used as a national geological symbol.
Gardens of Stone National Park was created on 1994-11-30.
Big Stone National Wildlife Refuge was created in 1975.
Stone Lakes National Wildlife Refuge was created in 1994.