Sillicone

from wikpedia

Silicones are largely inert, man-made compounds with a wide variety of forms and uses. Typically heat-resistant, nonstick, and rubber-like, they are commonly used in cookware, medical applications, sealants, adhesives, lubricants, insulation, and breast implants.

From me

Silicon is an a basic element, SI. . It is the basics of the electronics industry. Elemental silicon is grown in long crystals that are sliced into waffers that IC chips are printed and etched from.It is a grey metalic material.Quite brittle. It has been cut and polished into gems, and decrotive items like spheres. Most gem cutters hate it beacause of the mess left from cutting and polishing. . Silicon dioxide SIO2, quartz, the most comon mineral on earth. From it come a range of products, from Amethest and Citrine gem stones. to the basefor window glass. Itis also the the basic frequencykeeper for our RC equipment, the Crystals whihchare cut from syntheticQuartz today, but during WWII, it was a stratigic mineral and was horded by the governmet as synthetic quartz had not yet been developed. When the govennment released it stock pile of quartz,some of the finest mineral specimens ever know were put on the market, asthe hord of quratz for"crystals" forradio and radarequipment, had to be a pure as possible in order to give accurate frequency control. Synthetic Quartz made the natural quartz obsolite for this purpose.

Silica is one form of Silicon Dioxide.

The two, Silicone and Silicon arecompletly different materials.

Don