Crystal Silicon

Crystal silicon is a refined intermediate material made by further processing High-Purity Silicon. It is the silicon equivalent of Diamond in that it represents a highly purified, specialized form of a basic industrial material, and it cannot be crafted manually. In production terms, it sits above High purity silicon in the refining chain and can also be produced directly from the rare resource Fractal Silicon in a single step, which makes it a convenient route when that resource is available.

Its defining characteristic is extreme purity: the material is produced by melting High purity silicon and passing it through a strong electric field at a controlled speed, removing ionic impurities and yielding a spectrally pure crystal with almost no crystal defects. Because of that high purity, Crystal silicon is used where ordinary silicon is not sufficient, especially in ultra-high-precision optical equipment and other advanced components.

In practice, its demand is relatively limited compared with bulk industrial materials. The recipes that consume it are concentrated in a small set of advanced products, including Accumulator, Particle Broadband, Crystal Explosive Unit, and Signal Tower. Among those, only Particle Broadband is directly tied to matrix production, and even then it requires only a small amount per Information Matrix, so Crystal silicon is typically a selective rather than universal bottleneck material.

• It is an item, component, material, and crafting material.
• It cannot be hand-crafted.
• It is obtained either by refining High purity silicon or by processing Fractal silicon.
• Its main use is in advanced, low-volume recipes rather than mass manufacturing.
• Because its recipe chain is more specialized than basic silicon products, production planning should focus on matching output to the few items that actually consume it.