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black and golden cyclic twinned crystal groups of Cassiterite sitting on white prismatic Quartz crystals
jet-black twinned crystal of Ferberite (twinned along the a{100} face)
orange to nearly colorless Hyalite / “Blood Vessel” Opal from this new find in San Luis Potosi
A beautiful stacked / curled group of glassy tightly intergrown “beads” of gemmy brilliant orange color “Blood Vessel Opal” from this newly discovered locality
Specimen # BOL711B81
Amblygonite Zimbabwe black and golden cyclic twinnedAmblygonite is a relatively rare stone and is only found from a few localities in top gem material. Stones that approach five carats are highly sought after by collectors and deeply appreciated by those who have experience with rare gems. This particular stone has a light greenish color, and a "Round Brilliant" cut. With the naked eye, I cannot see any inclusions in this gem, which is impressive for the material, even in smaller gems. Amblygonite is
US$ 164.50
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US$ 333.00
