Call an element renewable if it can be generated in potentially unbounded quantities by a TPT factory which does not use any elements with cloning behaviour. For version 99.2 the list of banned elements is:

Various types of clone, c-rays and d-rays allow cloning and duplicating elements indefinitely, converter allows converting any particle into the desired type, while EXOT can also duplicate any element it touches.

Some elements allow producing other elements if set up correctly, like snow can melt to its ctype, and we exclude these cases as well, to prevent, for example, snow melting into EXOT.

Note that a renewable element need not be synthesized from nothing, for instance, the factory for generating water may use some amount of water to kickstart the process.

This page tracks which TPT elements are renewable at the moment, and provides some reactions proving the renewability.

Salt

Saltwater slowly turns water into more saltwater:

+ → 2×

Sponge absorbs saltwater and drops salt in 1/4 of cases:

+ 4× → (wet) +

Wet sponge releases water when heated:

(wet) → +

This reaction cycle has no water loss and produces excess salt.

Water, saltwater

Saltwater turns salt into more saltwater:

+ → 2×

So saltwater is also renewable, and by purifying it (say, with sponge), water is renewable.

Quartz, powdered quartz

Quartz grows in saltwater, and hence is renewable:

+ → 2×

Powdered quartz can be obtained by breaking quartz under pressure.

Ceramic, clay dust

Molten clay dust and molten powdered quartz produce molten ceramic:

+ → 2×

Ceramic breaks into clay dust under low pressure, closing the cycle.

Paste, bricks, stone

Clay dust and water give solid paste:

+ →

Solid paste turns into liquid paste or brick under sufficient pressure or temperature. Brick turns into stone under high pressure.

Carbon Dioxide

fusion produces

Above 0K, platinum catalyzes smoke's transformation into carbon dioxide. >0K + → +

Oxygen Gas

fusion produces

+ → +