Dendritic Black Opal 4mm Round - 15-16 Inch Featured_03052026 this semi to precious variety

this semi to precious variety of quartz is found in many locations around the world

which tends to be a strong blue color

Botswana Agate was formed nearly 187 million years ago by lava flowing in waves from long faults in the earth

” meaning “a stream of lava

resulting in fossils that are chalk-white

Dendritic Black Opal 4mm Round - 15-16 Inch Featured_03052026 this semi to precious varietyThis 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.