Guide
Aegirine specimens for sale
27 for sale · $40–$10,000 USD
138 in the gallery
Aegirine is a silicate mineral that forms in sodium-rich pyroxene compositions. It typically crystallizes as dark green to black, needle-like to columnar prisms with a vitreous to submetallic luster and a prismatic habit. Fine specimens show sharp, elongated crystals that can form on or within igneous rocks, often associated with other alkali pyroxenes and minerals produced in alkaline or nepheline syenite settings. Localities known for high-quality aegirine crystals include Canada, Pakistan, Malawi, Russia, and Denmark, where late-stage hydrothermal processes and alkaline magmatic activity contribute to robust crystal growth and well-formed blades.
- Formula
- (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
- Rarity
- Common
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Inosilicate; pyroxene group (single-chain silicate)
Key characteristics
- Crystal system
- monoclinic
- Mohs hardness
- 6
- Specific gravity
- 3.5–3.6
- Luster
- vitreous
- Transparency
- transparent, translucent, opaque
- Color
- green, black, brown
- Streak
- gray, yellow
- Cleavage
- good
- Fracture
- uneven
- Crystal habit
- prismatic, acicular, radiating, granular, massive
- Gem mineral
- Classic / historic
Buy Aegirine specimens
View all 27Where Aegirine is found
Top localities
- Mount Malosa29 specimens
- Mont Saint-Hilaire23 specimens
- Poudrette Quarry21 specimens
- Zagi Mountain6 specimens
- Mount Malosa3 specimens
- Pakistan2 specimens
- Magnet Cove2 specimens
- N'Chwaning II Mine2 specimens
- Namibia1 specimen
- Nairobi Volcanic area1 specimen
Guides
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About Aegirine
Collectors prize aegirine for its distinctive color and robust, slender crystals that stand out in a cabinet or display. The contrast of dark hues against lighter matrixes, combined with the mineral’s glassy luster and sharp terminations, makes it appealing for both aesthetic and locality-based collections. Aegirine often occurs with other pyroxenes or feldspathoids, offering interesting matrix specimens and potential associations for study and display, which adds to its appeal among mineral enthusiasts seeking bold, high-clarity crystals.
