Olivine · Peridot

Peridot

Peridot is the August birthstone — self-coloured iron-green olivine with lilypad inclusions and obvious doubling, mined from Egypt to Arizona and even falling from space.

Colour
green

Transparency
Transparent

RI
1.654–1.690

SG
3.27–3.48

Mohs
6.5–7.0

Birthstone
August

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