Purple Dendritic Opal 6mm Round - 15-16 Inch Color_Clear These flecks glitter as they

These flecks glitter as they catch the light and may appear white against the dark blue of the glass

Shattuckite is a pseudomorph

meaning that it has lustre and some translucency without the fire or color play associated with precious opal varieties

and rutile

black with snowflake patterns

Purple Dendritic Opal 6mm Round - 15-16 Inch Color_Clear These flecks glitter as theyThis 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.