Assertion: asterism | /r/HasProperty | optical phenomenon
Facets:
value: in the shape of a star
type: OTHER
Source sentences:
text: An asterism is an optical phenomenon displayed by some rubies, sapphires, and other gems (i.e. star garnet, star diopside, star spinel, etc.) of an enhanced reflective area in the shape of a “star” on the surface of a cabochon cut from the stone.
text: Asterism is an extremely rare natural phenomenon; it is an optical effect in the shape of a star found on Cabochon stones like rubies and sapphires.
text: An asterism is an optical phenomenon displayed by some rubies, sapphires, and other gems (e.g. garnet, diopside, spinel) of an enhanced reflective area in the shape of a "star" on the surface of a cabochon cut from the stone.
text: An asterism is an optical phenomenon displayed by some rubies, sapphires, and other gems (i.e. star garnet, star diopside, star spinel, etc.) of an enhanced reflective area in the shape of a “star” on the surface of a cabochon cut from the stone.
text: Asterism is an optical phenomenon that occurs sparingly in some gemstones.