Appearance: Odourless black pellets or extremely fine powder ; Black, odorless solid.
Products:
Si
Names: Silicon, Si, Element 14Elemental silicon, [Note: Does not occur freely in nature, but is found in silicon dioxide (silica) and in various silicates.]
Appearance: Steel-grey crystals or black-to-brown amorphous powder ; Black to gray, lustrous, needle-like crystals. [Note: The amorphous form is a dark-brown powder.]
Appearance: Colorless gas ; Odourless tasteless colourless compressed gas ; Colorless, odorless gas. [Note: Shipped as a nonliquefied or liquefied compressed gas.]