Larimar 6-12mm Graduated Rondelle with Matrix - 15-16 Inch R1261 It features:

It features:

Onyx is a black and white banded Chalcedony

and typically appear in light yellow-green to blue-green to deep moss green

Prehnite is translucent to transparent

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

Larimar 6-12mm Graduated Rondelle with Matrix - 15-16 Inch R1261 It features:Larimar is a translucent blue, turquoise and white stone that can have streaks and patterns of white, as well as red or brown either from oxidation or Hematite inclusions. It is a rare variety of Pectolite, found only in the Dominican Republic. Copper within the Pectolite creates the beautiful blue and turquoise colors in the stone. The blue colors are photosensitive and may fade when exposed to excessive light or heat.