Dendritic Green Opal 10mm Round - 15-16 Inch 48HR03142023 Diamonds actually form at high

Diamonds actually form at high temperatures and pressures that occur in Earth's mantle about 100 miles below Earth's surface

gray and peach

with inclusions that appear in patterns similar to moss or lichen

This semi to translucent stone occurs in an array of hues

Dendritic Green Opal 10mm Round - 15-16 Inch 48HR03142023 Diamonds actually form at highThis 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.