Xanthoxenite
A variety of Minerals
What is Xanthoxenite?
Xanthoxenite is a rare calcium iron(III) phosphate mineral with formula: Ca4Fe2(PO4)4(OH)2·3H2O. It occurs as earthy pale to brownish yellow incrustations and lath shaped crystals. It crystallizes in the triclinic crystal system. It occurs as an alteration product of triphylite in pegmatites. It occurs associated with apatite, whitlockite, childrenite–eosphorite, laueite, strunzite, stewartite, mitridatite, amblygonite and siderite. It has been found in Australia, Brazil, Portugal, Spain, Ukraine, and the United States. It was first described in 1920 for an occurrence in North Groton, Grafton County, New Hampshire.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Xanthoxenite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Xanthoxenite Localities Map
See where Xanthoxenite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Pale yellow, brownish-yellow; pale yellow to pale lemon-yellow in transmitted light.
- Hardness (Mohs)
- 2.5
- Density
- 3.38 g/cm³
Chemical Properties
- Chemical Formula
- Ca4Fe3+2(PO4)4(OH)2 · 3H2O
- Elements
- Ca, Fe, H, O, P
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Xanthoxenite FAQs
How do I identify Xanthoxenite?
Xanthoxenite can be identified by its hardness of 2.5 on the Mohs scale, Pale yellow color. Look for these key characteristics when examining specimens.
What color is Xanthoxenite?
Xanthoxenite typically appears in Pale yellow, brownish-yellow; pale yellow to pale lemon-yellow in transmitted light.. Color can vary depending on impurities and formation conditions.
How hard is Xanthoxenite?
Xanthoxenite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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