Water and air
Chemical Changes
Weathering and erosion would alter the shape of a rock, as would the application of stress possibly combined with high(er) temperature conditions.
Chemical weathering
In general, the changes in mineral assemblage and mineral composition that occur during burial and heating are referred to as prograde metamorphism.
I believe you are looking for the word "metamorphism".
It is a mineral or a number of minerals which are part of the composition of rock.
It is most similar to the composition of the rock basalt.
Chemical Changes
Weathering and erosion would alter the shape of a rock, as would the application of stress possibly combined with high(er) temperature conditions.
recrystallization
Rhyolite is a rock type that is categorized by mineral composition. Scoria is a textural rock type. Like, Rhyolite can be smooth, or it can be scoria (sharper, bumpier, lots of vesicles).Think of it as a rock adjective.
Chemical Weathering
Its mineral composition.
Each rock has a different composition.
felsic and something else i do not remember the second one.
recrystalllization
it undergoes transformation into another rock.