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doubly terminated
A hard to find "cogwheel"-esque group of sharp
Specimen # BOL711B91
These specimens are some of the most classic Quartz after Calcite pseudomorphs or "casts" from any world locality and this specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were coated by very small
Opal (var: Opal-AN) / (var: Hyalite Opal) (“Blood Vessel Opal”) silicate doubly terminatedA 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
