ASTERIATED. Radiated, with rays diverging from a centre, as in a star--as exhibited by an asteriated or star sapphire.
AVICULIDAE. Wing-shells, or Pearl Oysters.
Asteria: Asteriated or asterism refer to a property possessed by some gem stones when cut cabochon or when viewed in transmitted light, of reflecting the light as a star, or surrounding the light source with radiating rays.
Asterism, Asteriated (n, a) Optical phenomenon displayed by some rubies, sapphires that disperses reflected light in the shape of a star.
Beryl (n) Beryl is a mineral made up of beryllium aluminium cyclosilicate.
The name Star Sapphire is reserved for asteriated, blue corundum. Paradoxically, star stones that are not blue are sometimes referred to as Star Ruby, even those that are not red! ...
a needle of ruttle in asteria
specks (piqués) of carbon in some diamonds
specks of mica in aventurine quartz
insects etc., embedded in amber ...
Sources -- Kenya, Myanmar (Burma), Sri Lanka, Canada. Kornerupine is a rather scarce collector's item and very rare in asteriated (star) material. Light green stones from Kenya are particularly attractive.
These rubies contain needle-shape rutile-like inclusions, referred to as silk, that create the illusion of a six-rayed star inside the ruby. The asteriated effect is clearest in a ruby that is cut as a half-dome shaped cabochon, ...
The aforementioned needles can also lead to a six-pointed star or asteriated effect from light reflections bouncing off of these microscopic needle-shaped rutile crystals.
Near this place, brown crystals of sapphire have been found, in which, when they are cut en cahochon, so that the dome of the cut'stone is parallel with the perpendicular axis of the crystal, an asteria effect is produced, ...
 See also: Crystal, Diamond, Jewel, Stone, Sapphire
  
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