Opal (var: Opal-AN) / (var: Hyalite Opal) (“Blood Vessel Opal”) silicate A hard to find "cogwheel"-esque

A hard to find "cogwheel"-esque group of sharp

doubly terminated

Clarence Coil in 1975

so both ends had room to finish growing

thin blades of Brookites with a rich flame-red hue sitting among scattered Quartz crystals on matrix

Opal (var: Opal-AN) / (var: Hyalite Opal) (“Blood Vessel Opal”) silicate A hard to find "cogwheel"-esqueA rather gemmy, soft golden orange color, lustrous, globular group of Blood Vessel Opal Hyalite Opal featuring a group of intergrown spheres which get their color from tiny inclusions of iron oxide. A little below the surface, the specimen shows the thin capillary esque lines that give it such a unique appearance. One typically does not see Hyalite Opal of this quality and color on the market. Only a tiny bit of damage on the back, and attractive to