Turkish Dendritic Opal Rough Specimen, Central Anatolia, Turkey yellow quartz There are some rainbows

There are some rainbows

well‑developed tabular crystal geometry

choose from a set of (mostly) natural rough specimens and a set that has mostly polished pieces

Nashik District

Turkish Dendritic Opal Rough Specimen, Central Anatolia, Turkey yellow quartz There are some rainbowsThis is a beautiful Turkish opal consisting of a combination of dendritic, white, and honey color hyalite opal. This piece is from nn District, Eskiehir Province, Central Anatolia Region, Turkey. The piece is UV reactive and fluoresces shades of white and light colors with long wave UV light source (365 nm) and a beautiful green with 254nm short wave UV. Weight is 90 grams, and the size is 63 x 56 x 35 mm. This material is sometimes referred to as