Just an FYI... only 5% of Meteorite "falls" are of the nickel-iron type, making them "rare" to begin with. It is true there is more land in India, but unless the "fall" is witnessed, located and recovered, it is likely that the meteorite will be ignored unless it is a sizeable chunk. This makes the Prambanan meteorite very special meteorite indeed, as if it were meant to be.
Here are some definitions that may be helpful:
Meteoroid - when it is in space
Meteor - the light given off by a meteoroid entering the atmosphere
Meteorite - when it rest on the surface of a planet, that which you make a keris from
Nickel-iron type will average around 5 to 8% nickel and to 92 to 95% iron, and some can be relalitively soft, such as the Gibeon Meteorite from Namibia, Africa.
I hope this information is useful.