Nullnite's Echoes - pieces of splitted nullnite, that lost ability to charge, but still keep gravity power to absorb energy of sun or void.

Echoes can be mined. Ore spawns under surface of islands, most often - in oblivion blocks, where covered by obsidian and fallen stars.
To mine it, wait till changing of ore and once it changed its texture - right click with pickaxe, after 4 times ore will be able to drop nullnite's echo.

Once player've got 5 echoes - nullnite can be created. To craft nullnite, player need to put 4 echoes above inverted day detector, under of what placed poslished obsidian, and 5th one - on void shard block.

Nullnite - united echos of nullnite, that may contains solar, aqua and void energy.
Each energy type can be charged via absorbing of environment by nullnite.
To get:

• aqua charge - throw nullnite into water for 50 seconds for full charge,
• solar charge - till time of day, stay in overworld with nullnite inside your inventory,
• void charge - stay under 9 coordinate of 'y' in End dimension while not standing on ground.

When charged, right click with item in hand while pressing shift to change current ability of nullnite. If in left hand player has nullnited pendant, nullnite will transfer all of its charge to pendant, and then removed.

Nullnited Pendant - covered by nullnite, shattered pendant that may hold energy of nullnite. Pendant can be transformed, if nullnite is close, and both item entities of nullnite and pendant are in End city,

While pendant on player, nullnite or its echoes in inventory won't calls Echo of Sparkle, else after 150 seconds echo of sparkle spawns to remove nullnite from player.

Nullnited pendant also can keep charge like nullnite does. When it's charged by nullnite, press 'left alt(button can be changed) + shift' to choose mode, and press 'left alt(button can be changed)' to activate its ability.