description Phosphosiderite Overview
Phosphosiderite is a hydrated iron(III) phosphate mineral with the formula FePO4·2H2O and a monoclinic crystal structure. It occurs in colors ranging from purple and reddish violet to rose, peach-pink, brownish yellow, green, or colorless, and it has a relatively low Mohs hardness of 3.5 to 4. The mineral was described in 1890 from the Kalterborn Mine in Germany, and its name combines phosphate with the Greek word sideros, meaning iron; colored material is used for collector specimens and occasional jewelry.
help Phosphosiderite FAQ
How good is Phosphosiderite?
Phosphosiderite scores 4.05/10 (Poor) on Lunoo, making it rated in the Gemstone category.
What are the best alternatives to Phosphosiderite?
See our alternatives page for Phosphosiderite for a ranked list with scores. Top alternatives include: Rhodolite Garnet, Blue Lace Agate, Turquoise.
How does Phosphosiderite compare to Rhodolite Garnet?
See our detailed comparison of Phosphosiderite vs Rhodolite Garnet with scores, features, and an AI-powered verdict.
Is Phosphosiderite worth it in 2026?
With a score of 4.05/10, Phosphosiderite is a solid option in Gemstone. See all Gemstone ranked.
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