Recognize the session layer of the OSI model ; List the seven layers of the OSI model ; Discuss the responsibilities, functions and protocols of the session layer ; Specify the six session layer protocols
Currently, the most popular color for this gem is the blue zircon. Most blue zircon, which is considered an alternate birthstone for December, is normally a pastel to medium blue in color, but some exceptional gems have a bright blue color. Beyond blue, Zircon is also available in green, deep red, yellow, brown, and orange.
Zircon (/ËzÉrkÉn/ or /ËzÉrkÉn/ ; including hyacinth or yellow zircon) is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is Zr SiO4.A common empirical formula showing some of the range of substitution in zircon is (Zr 1ây, REE y)(SiO 4) 1âx (OH) 4xây. Zircon forms in silicate melts with large proportions of high field strength incompatible elements.ts chemical name is zirconium silicate and its corresponding chemical formula is Zr SiO4. A common empirical formula showing some of the range of substitution in zircon is (Zr 1ây, REE y)(SiO 4) 1âx (OH) 4xây. Zircon forms in silicate melts with large proportions of high field strength incompatible elements.