Silicon machine slice wrapped in silver copper wire, the strand has natural silver metal beads, pewter spacers, and glass crystals. A amazing rare piece that shows the amazing properties of the basic element silicon.Silicon is the seventh most abundant element in the universe and the second most abundant element in the earth's crust. Today, silicon is produced by heating sand (SiO 2) with carbon to temperatures approaching 2200°C. Two allotropes of silicon exist at room temperature: amorphous and crystalline. Amorphous appears as a brown powder while crystalline silicon has a metallic luster and a grayish color.Silicon is present in the sun and stars and is a principal component of a class of meteorites known as aerolites. It is also a component of tektites, a natural glass of uncertain origin. Silicon makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, being exceeded only by oxygen. Silicon is not found free in nature, but occurs chiefly as the oxide and as silicates. Sand, quartz, rock crystal, amethyst, agate, flint, jasper, and opal are some of the forms in which the oxide appears. Granite, hornblende, asbestos, feldspar, clay, mica, etc. are but a few of the numerous silicate minerals.
Silicon is prepared commercially by heating silica and carbon in an electric furnace, using carbon electrodes. The Czochralski process is commonly used to produce single crystals of silicon used for solid-state or semiconductor devices.Si is the chemical initials on the periodic table of elemens.Almost pure Silicon, metal beads, pewter, glass crystals, wire. The materials are all natural and will do well in an outside environment.