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.
