$208Median
2Sold (12 mo)
$150Last sale
FluAmphibolerrichterite specimens for sale
4 for sale · $230–$2,000 USD
9 in the gallery
FluAmphibolerrichterite is a mineral in the amphibole group, typically forming elongated, prismatic crystals with a vitreous to silky luster. Its color can range from brown to green, and crystals often occur in columnar to hornblende-like habits within metamorphic rocks or aluminous granitoids. Specimens may display well-formed prisms and fibrous aggregates, sometimes with contrasting cleavage surfaces that enhance their sculptural appearance. Notable localities historically include alpine and high-grade metamorphic regions where complex hydrothermal and metamorphic processes concentrate trace fluorine and aluminum in crystal lattices.
- Formula
- Na(NaCa)Mg5Si8O22F2
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Inosilicate; amphibole supergroup, sodic-calcic amphibole; Strunz 9.DE
Key characteristics
- Crystal system
- monoclinic
- Mohs hardness
- 5–6
- Specific gravity
- 3.05–3.2
- Luster
- vitreous
- Transparency
- transparent, translucent
- Color
- colorless, white, gray, brown, yellow, green, blue
- Streak
- white
- Cleavage
- perfect
- Fracture
- uneven, splintery
- Crystal habit
- prismatic, acicular, fibrous, granular, massive
Buy FluAmphibolerrichterite specimens
View all 4About FluAmphibolerrichterite
Collectors prize FluAmphibolerrichterite for its rarity and distinct habit, especially when crystals reach appreciable size or form harmonious clusters. Its provenance from specialized assemblages—where fluorine-bearing fluids influence crystal chemistry—adds to its allure, offering a window into high-temperature metamorphic environments. While such specimens are scarce, well-documented examples from classic European localities and select pegmatites provide memorable highlights for a curated collection. The mineral’s aesthetic, combined with its geological intrigue, makes FluAmphibolerrichterite a sought-after addition for enthusiasts pursuing nuanced amphiboles and metamorphic mineralogy.
