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Fossil coral is porous
High-contrast swirls in russet
“Afghan Jade” is a trade name commonly used for light-toned serpentine (sometimes bowenite)
especially those with this level of clarity
collector-worthy take on a beloved jasper variety
Aragonite Star Cluster (Sputnik Aragonite) – Morocco Specimen:H: 140g (4.94 oz) Fossil coral is porousGeological Overview These specimens are premier examples of cyclic twinning in the Orthorhombic crystal system. Formed within the Triassic gypsiferous claystone of Morocco, these clusters of Aragonite (Calcium Carbonate, Ca2CO3) precipitate from iron rich mineral fluids. This process results in their characteristic burnt sienna and honey amber saturation. The "Sputnik" formation occurs when three individual crystals grow outward from a common center