here's some info on the ores there's 9 ores jade, sapphire, topaz, aquamarine, electrum, flamearon, endaron, heartstone, cobalt

jade, sapphire and topaz have different stats

like sapphire mines fast but doesn't do much damage

but topaz does a lot of damage but its slow at mining

and jade is a bit of both.

sapphire jade and topaz spawns at y30 to y0 the deepslate versions spawns at y0 to -y60

electrum and aquamarine spawns at y30 to y0 and the deepslate versions spawns at y0 to -y60

flamearon spawns at y30 to y0 or in the nether

heartstone spawns in the nether from y1 to y125

endaron spawns in the end from y1 to y150

cobalt spawns at y30 to y0 in the overworld

you need a reinforced diamond pickaxe to mine the ores

a lot of the items are crafted in the sapphire crafting table

a way to get double the resources is by making a crusher it works on ores and a lot of other items there's also a super crusher that is for more advanced materials

some mobs will drop summon staff's they can summon a mob to help you fight

a good and easy food to get is sweet berry soup it's cheap to craft and gives a lot of hunger bars

Excalibur is a strong sword it can't be enchanted but it can be upgraded to stronger swords

all the excaliburs are crafted in the sapphire crafting table

if you want to repair a excalibur you need a excalibur repair core it can be crafted in the crafting table