Silver has different properties than gold, for example better themal
here are some suggestions to experiment with:
vary the pour height
vary melt temperature
add ice cubes to water
add other materials to the water
silver seems to crystallize, sometimes, almost by looking at it.
Gold, on the other hand, forms perfect crystals in nature, however
the crystals are almost always formed out of solution exchange,
rather than by crystalline action in a mass of metal (as with
the good news: as you experiment, you simply keep remelting the
results from the experiments that do not work. you will waste some
time, maybe a little torch gas, but you will learn quite a bit about
the metal as you go.
good luck, keep experimenting.