Dendritic Green Opal 10mm Round - 15-16 Inch Stone Type_Mica who performed early research into

who performed early research into the many optical properties of mica

a phenomenon that occurs when light hits the chips of silica inside the gemstone and a rainbow of different colors refract inside the stone

These inclusions create black and brown spots that resemble the random patterns found on its namesake

Labradorite is remarkable for the way its aggregate layers refract light

also known as Rainbow Jasper

Dendritic Green Opal 10mm Round - 15-16 Inch Stone Type_Mica who performed early research intoThis variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns. These inclusions consist of iron, manganese and other metallic oxides captured during the forming of the rock. Opals are hydrated amorphous forms of silica, created when silica hardens within the fissures of other stones.