![Charoite with Aegirine inclusions ((K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4.0-3.0 * nH2O + NaFeSi2O6) — mineral](https://media.rock.id/charoite-with-aegirine-inclusions-6b8ce407-ed97-4e85-8ac7-bf124c624da0-compressed.jpg)
mineral
Charoite with Aegirine inclusions
(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4.0-3.0 * nH2O + NaFeSi2O6
Hardness 5-6 (Mohs), purple to violet color with black needle-like inclusions, vitreous to pearly luster, monoclinic crystal structure, good cleavage, specific gravity 2.54-2.58
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Physical properties
Hardness 5-6 (Mohs), purple to violet color with black needle-like inclusions, vitreous to pearly luster, monoclinic crystal structure, good cleavage, specific gravity 2.54-2.58
Formation & geological history
Forms in syenites resulting from the alteration of limestone by alkali-rich magma. Exclusively found in the Murun Massif in Siberia, Russia.
Uses & applications
Used primarily as a gemstone in jewelry, carving, and ornamental objects.
Geological facts
Charoite is known for its distinct swirling purple patterns and is often found with inclusions of black aegirine, orange tinaksite, and greenish microcline.
Field identification & locations
Identify by its unique purple color, swirling patterns, and black needle-like inclusions. Found only in Russia. Beware of dyed substitutes.
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