DESCRIPTION OF THE ROUGH
Fazenda Bonfim emeralds typically consist of crystal
fragments with homogeneous color. Well-formed
crystals showing hexagonal prisms are rarely recovered
as broken segments that commonly lack flat (pinacoidal)
terminations. Transparent fragments and crystals (figure
9) typically range between 2 and 5 mm, though larger included crystals measuring a few centimeters long
have been found.
The color of the emeralds ranges from light slightly
bluish green to medium-dark bluish green. Very pale
green beryl is also found.