La pedra en sec. Materials, eines i tècniques tradicionals a les illes ...

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Description
A wedge-shaped iron piece and two
very thin pieces of iron.
Size
The wedge is approximately 13 cm
long with a head of 3.5 cm in diameter.
Each thin piece is 13 cm long and
0.5 cm thick.
Approximate weight
The wedge weigh 600 g while the thin
pieces 200 g.
Materials of the parts
Iron.
Use
To open, crack or break a stone.
Ways of using it
A series of wedges are set out (the
wedge between two flat pieces) in the
holes made in the rock and located
along the line where we want to break
the stone. The head of the wedge is
hit with a work large hammer or a
sledge hammer until the stone is broken.
The two thin pieces prevent the
stone from braking off in the wrong
direction,
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