Sapphire

Dark blue sapphire, probably of Australian origin, showing the brilliant surface luster typical of faceted corundum gemstones.

Sapphire (Greek:σάπφειρος; sappheiros, 'blue stone', itself derived from Sanskrit "ShaniPriya" which probably referred instead at the time to lapis lazuli) is a typically blue gemstone variety of the mineral corundum, an aluminium oxide (α-Al₂O₃). Trace amounts of elements such as iron, titanium, chromium, copper, or magnesium can give corundum respectively blue, yellow, purple, orange, or green color. Chromium impurities in corundum yield pink or red tint, the latter being called ruby.

单词	Synthetic sapphire
释义	Synthetic sapphire 英语百科 Sapphire Sapphire (Greek:σάπφειρος; sappheiros, 'blue stone', itself derived from Sanskrit "ShaniPriya" which probably referred instead at the time to lapis lazuli) is a typically blue gemstone variety of the mineral corundum, an aluminium oxide (α-Al₂O₃). Trace amounts of elements such as iron, titanium, chromium, copper, or magnesium can give corundum respectively blue, yellow, purple, orange, or green color. Chromium impurities in corundum yield pink or red tint, the latter being called ruby.
随便看	holodedrism holodeme holodentography holodesmosome holodiagram holodiastolic holodicaryotic holodikaryotic HOLODIPTERIFORMES Holodiscus holodisk holodisks Holodomor Holodomors holodon holodontus Holodorm holodorsal shield holoed Holoendemic holoendemic disease holoendemic malaria holoentoblastia holoenzyme holoenzymes

Synthetic sapphire

Sapphire