Smithery is a mod about decoration with metal blocks (inspired by the copper variants) and turning Minecraft's gear progression line into a progression tree, one branch at a time

Rubies: A shiny blood red gem found near the top of The Nether with very ornate blocks
Rose Gold: A mid-game copper-gold alloy that piglins still love just as much.
Quicksilver: A sludgy silver material found in pockets around The End (main ingredient in Wyrmsteel)
Wyrmsteel: A late game material forged from the mysterious Quicksilver and Copper Ingots

Grates, Chains, and Bars: Each metal now has more decorative block variants inspired by vanilla copper block variants. (connected chains are part of the Connectible Chains mod)

Wyrmsteel Gear: A late game set of tools prioritizing speed over durability, capable of instamining deepslate with haste 2 and effeciency 5! Wyrmsteel Upgrades can be found in End Cities.
Rose Gold Gear: A golden armor / toolset reinforced with copper to provide durability similar to stone and about as much protection as chainmail. And Piglins love it!
Ruby Gear: Like diamonds, but red! Yes, it's pretty much just recolored diamonds (for now).