Topaz 4mm Round A-Grade - 15-16 Inch ROUND ” Aquamarine was once thought

” Aquamarine was once thought to be the treasure of mermaids

Opals are hydrated amorphous forms of silica

red and magenta hues

It also occurs in golden yellows and browns as well as milky white

Rhyolite or Tuff

Topaz 4mm Round A-Grade - 15-16 Inch ROUND ” Aquamarine was once thoughtTopaz obtains much of its popularity from its beautiful colors and its status as a birthstone. Natural topaz colors include rare and valuable yellow, orange, pink, red, purple, and blue. One of the best known physical properties of topaz is its hardness. It has a hardness of 8 on the Mohs hardness scale, making it the hardest silicate mineral. It also serves as the Mohs hardness scale index mineral for a hardness of 8.