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where variations in environmental conditions cause layers of fluorite to grow at different rates
particularly in specimens that exhibit such a well-balanced combination of features: crystal clarity
hand-carved six-sided tower
each of these pieces represents a higher-quality example from a region known for producing some of the most aesthetic calcite formations in China
Quality Grade: A
Natural Citrine Heart (Untreated) – DR Congo Blue Tiger's Eye where variations in environmental conditionsGeological Overview These hearts are carved from 100% natural Citrine, a rare yellow variety of Quartz. Unlike the common heat treated stones on the market, these specimens from the Democratic Republic of the Congo owe their golden champagne hue to natural irradiation and trace amounts of aluminum or iron within the silicon dioxide (SiO2) crystal lattice. Formed in pegmatite veins, this material often exhibits a "smoky" transition, characteristic of
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