Astrophyllite Ring
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Astrophyllite Ring

$54.99
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The Science Museum of Minnesota

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This ring features a polished piece of natural astrophyllite set in sterling silver. Astrophyllite is a rare, bronze-gold to brown silicate mineral that forms in radial, star-like crystal aggregates, giving it a distinctive appearance. Details: Mineral: Astrophyllite ((K,Na)₃(Fe²⁺,Mn)₇Ti₂Si₈O₂₄(O,OH)₇) Setting: Sterling silver Appearance: Metallic bronze to brown crystal clusters polished for a smooth finish Formation: Forms in igneous rocks such as nepheline syenites under slow cooling conditions Physical Properties: Mohs hardness 3–4; submetallic to vitreous luster Educational Value: Demonstrates silicate mineral formation, crystal aggregation, and igneous rock mineralogy This astrophyllite ring combines the rarity and unique crystal structure of the mineral with wearable design.

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