Organic Gems

The Definitive Gemstone Encyclopedia — 500+ Gems, 10 Scientific & Spiritual Dimensions

38 gemstones in Organic Gems

Pearl

Mohs -2.0 · White, cream, pink, black, gol

Akoya Pearl

Mohs 3.5 · White, cream, pink

South Sea Pearl

Mohs 3.5 · White, silver, gold

Tahitian Pearl

Mohs 3.5 · Black, grey, green, peacock

Keshi Pearl

Mohs 3.5 · White, cream (irregular shape)

Conch Pearl

Mohs 3.5 · Pink, coral, white

Melo Pearl

Mohs 3.5 · Orange, yellow, brown

Red Coral

Mohs 3.5 · Red, pink, salmon

Black Coral

Mohs 3 · Black, dark brown

Amber

Mohs 2 · Yellow, orange, brown, green,

Blue Amber

Mohs 2 · Blue under UV, yellow normally

Green Amber

Mohs 2 · Green

Copal

Mohs 2 · Yellow, orange, brown

Ivory

Mohs 2.5 · White, cream

Tortoiseshell

Mohs 2.5 · Brown, amber, spotted

Jet

Mohs 2.5 · Black

Ammolite

Mohs 4 · Red, green, rainbow iridescent

Petrified Wood

Mohs 7 · Brown, red, yellow, green

Fossil Coral

Mohs 7 · White, brown, red, pink

Dinosaur Bone

Mohs 7 · Brown, red, blue, yellow

Peanut Wood

Mohs 7 · Brown with white spots

Mother of Pearl

Mohs 2.5 · White, iridescent

Operculum

Mohs 3.0 · Brown, green, eye-shaped

Shark Tooth Fossil

Mohs 5.0 · Grey, brown, black

Trilobite Fossil

Mohs 4.0 · Brown, black

Sand Dollar Fossil

Mohs 4.0 · White, grey

Orthoceras Fossil

Mohs 4.0 · Black, grey, white

Japanese Pearl (National Gem)

Mohs 3.5 · White, cream

Golden South Sea Pearl

Mohs 3.5 · Deep gold, champagne, golden

Conch Pearl Gem

Mohs 3.5 · Pink, salmon, coral, white (fl

Melo Pearl Gem

Mohs 3.5 · Orange, yellow, brown (flame s

Abalone Pearl

Mohs 3.0 · Blue, green, silver iridescent

Pink Coral

Mohs 3.5 · Pink, salmon, angel skin

Gold Coral

Mohs 3.5 · Golden, yellow, champagne

Angel Skin Coral

Mohs 3.5 · Pale pink, peach, salmon

Hawaiian Black Coral

Mohs 3.0 · Black, dark brown

Burmese Amber (Burmite)

Mohs 2.0 · Red, brown, golden (oldest amb

Baltic Amber (Succinite)

Mohs 2.0 · Yellow, honey, cognac, white