Black Opal 4mm Round Faceted - 15-16 Inch Shape_Cabochon Apatite can exhibit chatoyancy —

Apatite can exhibit chatoyancy — an uncommon optical phenomenon in some stones that resembles the light reflection of a cat’s eye

The presence of Manganese in the stone produces its color

Garnet was used as far back as the Bronze Age

Stones will vary by inventory

Black Opal 4mm Round Faceted - 15-16 Inch Shape_Cabochon Apatite can exhibit chatoyancy —Black Opal is a naturally occurring variety of precious opal mined in Australia. this opal variety is characterized by their dark base tone. It is mined under extremely harsh conditions and the high grade specimens are more rare than diamonds. Australian Aboriginal tribes referred to Black Opal as "Fire of the Desert."