Respiratory syncytial virus (RSV) in adults is typically less severe than RSV in children or the elderly. This eMedTV segment explains the transmission, symptoms, incubation period, and treatment of RSV in adults.
Prices for blue zircons average around $75 per carat for 5 to 6 carat gems. The better colors with fancy shapes can wholesale from $125 to $150 per carat. Top gem blues can reach $200 per carat.rices for blue zircons average around $75 per carat for 5 to 6 carat gems. The better colors with fancy shapes can wholesale from $125 to $150 per carat. Top gem blues can reach $200 per carat.
Common brown zircons can be transformed into colorless and blue zircons by heating to 800 to 1000 Â°C. However, only some brown materials have the appropriate physical structure to turn blue when heated, typically only deposits found in Southeast Asia - which is why most blue zircon comes from the Ratanakiri Province in northeastern Cambodia, where we are, or Burma.