How can I slice granite boulders?

["Andrei Stefanescu" <andrei_stefanescu@xxxxxx>]

Don,

I have seen large marble blocks being split by the
method described below, I've done it myself, and I don't
see why it shouldn't work with granite.

The splitting involves the use of wedges driven into
holes drilled into the stone. The wedges consist of 4
two L-shaped pieces of steel. They are  inserted into
the hole with the long side of the L in, such that the
short sides point outward in opposite directions.

Into the space between the L-pieces a solid somewhat
pointed steel rod is driven by heavy blows with a
sledgehammer. The holes form a line along which the rock
is supposed to split. You need about 4-6 holes, equally
spaced, the depth being roughly the distance between
them. Obviously the holes need to be on the same plane,
which can be tricky. You need one wedge per hole, and
you drive them in one after the other, and repeating
until the stone spilts.

Hope it helps.
Regards,
Andrei