Xenotime-(Yb)
Xenotime-(Yb) is a phosphate mineral with the chemical formula Yb(PO4), indicating it is composed of ytterbium, phosphorus, and oxygen. It belongs to the tetragonal crystal system and is part of the xenotime group within the phosphate mineral class. This mineral typically exhibits a yellowish to brownish color, a submetallic to resinous luster, and a hardness of approximately 5 on the Mohs scale. With a relatively high density, xenotime-(Yb) is notable for its association with ytterbium, a rare earth element. It is classified under the Strunz system as 8.AD.35 and the Dana system as 38.4.11.6.
Composition
- YbYtterbium64.6%
- OOxygen23.9%
- PPhosphorus11.6%
Overview
Xenotime-(Yb) is a phosphate mineral with the chemical formula Yb(PO4), indicating it is composed of ytterbium, phosphorus, and oxygen. It belongs to the tetragonal crystal system and is part of the xenotime group within the phosphate mineral class. This mineral typically exhibits a yellowish to brownish color, a submetallic to resinous luster, and a hardness of approximately 5 on the Mohs scale. With a relatively high density, xenotime-(Yb) is notable for its association with ytterbium, a rare earth element. It is classified under the Strunz system as 8.AD.35 and the Dana system as 38.4.11.6.
Etymology
Xenotime-(Yb) is named after the rare earth element ytterbium, which is a key component of its chemical composition.
How to recognize it
Xenotime-(Yb) can be identified by its hardness of approximately 5 on the Mohs scale, its yellowish to brownish color, and its submetallic to resinous luster. It typically does not have a distinct streak. Due to its moderate hardness and density, it can be distinguished from other phosphate minerals by testing its physical properties and examining its chemical composition.
Trivia
Xenotime-(Yb) is notable for containing ytterbium, a rare earth element, which is uncommon in most minerals. It belongs to the tetragonal crystal system, which is less common than the hexagonal or isometric systems. Additionally, its chemical formula, Yb(PO4), highlights its unique composition as a phosphate mineral.
Indicative prices
Xenotime-(Yb) is a rare mineral and is not commonly traded as a gemstone or jewelry material. As a mineral specimen, prices are indicative and vary by source, with high-quality crystals fetching between EUR 500 and EUR 2,000 depending on origin, clarity, and rarity. It is not typically cut into gems, so jewelry-grade material is virtually unknown in the market.