Vanilla
Redstone Armor ← Illuminated (Redstone Level)

Biomes O' Plenty
Amethyst/Ruby/Peridot/Topaz/Tanzanite/Malachite/Sapphire/Amber ← Experience Giving

NetherEx
Nether Amethyst ← Powerful
Nether Rime ← Frosty + Illuminated
Worn Iron ← Immovable

Quark
Iron Plate ← Immovable
Rusty Iron Plate ← Immovable

Tinkers Construct
Ardite ← Fiery
Cobalt ← Lightweight
Manyullin ← Powerful
Knightslime ← Speedy
Pig Iron ← Flame Resistant
Aluminum Brass ← Experience Giving
Silky Jewel ← AutoSmelt

Here are some more suggestions for blocks from my mod:
Regeneration Stone: Healing
Blaze Block: Fiery, Illuminated
Ender Pearl Block: Ender (Ability to teleport)