greenstone

/green-stohn/US // ˈgrinˌstoʊn //UK // (ˈɡriːnˌstəʊn) //

绿石,绿岩,绿宝石,青石

Definitions

n.名词 noun

1
- : any of various altered basaltic rocks having a dark-green color caused by the presence of chlorite, epidote, etc.

“Bud tender” Allie Greenstone (her real name) answers the door.
Indistinct specimens of greenstone, with adhering quartz; apparently a primitive rock.
It is found in connection with isolated blocks of amygdaloid, of primitive greenstone, and of petrosilex.
Greenstone or diorite is usually a dull greenish rock, sometimes gray, however, speckled with green.
Greenstone is an excellent rock, and has a fine surface, but it is unmanageable.
The gold exists in spangles and in grains, disseminated among fragments of greenstone and porphyry.