Biome-Specific Gems

Emerald	This Vanilla Minecraft gem can be found in the Extreme Hills Biome.
Tanzanite	Can be found in most snowy biomes, except the Alps. Maple Woods Dead Forest Snowy Coniferous Forest Cold Desert Tundra Snowy Forest
Ruby	Can be found in Dry Biomes. Wasteland Lush Desert Outback Brushland Steppe
Malachite	Can be found in Swampy Biomes. Ominous Woods Xeric Shrubland Fen Bayou Moor Quagmire Bog Land of Lakes Lush Swamp Dead Swamp Marsh
Peridot	Can be found in Grassy Biomes. Chaparral Lavendar Fields Orchard Flower Field Prairie Grassland Shrubland Meadow
Sapphire	Can be found in Water-based Biomes. Coral Reef
Topaz	Can be found in Tropical Biomes. Cherry Blossom Grove Bamboo Forest Tropical Rainforest Eucalyptus Forest Rainforest Sacred Springs Mystic Grove
Amber	Can be found in Forest Biomes. Coniferous Forest Redwood Forest Shield Seasonal Forest Boreal Forest Grove Woodland Temperate Rainforest
Ender Amethyst	Can only be found in The End Dimension.

Terrestrial Artifact