Yttrocrasite-(Y)
Yttrocrasite-(Y) is a rare mineral with the chemical formula (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6. It is a complex oxide hydroxide containing yttrium, thorium, calcium, uranium, titanium, and iron. The mineral crystallizes in the monoclinic crystal system and is classified under the Strunz system as 4.DG.05 and under the Dana system as 8.3.8.4. It typically exhibits a dull to earthy luster, with a hardness of approximately 4 to 5 on the Mohs scale. Its density is moderate, and it is generally found in dark brown to black colors. Yttrocrasite-(Y) is part of the oxide mineral group and is notable for its complex composition and association with rare earth elements.
Composition
- OOxygen34.2%
- TiTitanium34.1%
- YYttrium31.7%
Overview
Yttrocrasite-(Y) is a rare mineral with the chemical formula (Y,Th,Ca,U)(Ti,Fe)2(O,OH)6. It is a complex oxide hydroxide containing yttrium, thorium, calcium, uranium, titanium, and iron. The mineral crystallizes in the monoclinic crystal system and is classified under the Strunz system as 4.DG.05 and under the Dana system as 8.3.8.4. It typically exhibits a dull to earthy luster, with a hardness of approximately 4 to 5 on the Mohs scale. Its density is moderate, and it is generally found in dark brown to black colors. Yttrocrasite-(Y) is part of the oxide mineral group and is notable for its complex composition and association with rare earth elements.
Etymology
The mineral is named after yttrium, a chemical element present in its composition. The name reflects the significant presence of yttrium in the mineral's structure.
How to recognize it
Yttrocrasite-(Y) can be identified through its hardness of 4 to 5 on the Mohs scale, which is relatively low for an oxide mineral. It typically appears dark brown to black in color, with an earthy luster. Its streak is likely dark, though specific details are not provided. Due to its rarity and complex composition, it is often confused with other rare titanium-iron oxide minerals, particularly those containing rare earth elements.
Trivia
Yttrocrasite-(Y) is notable for its complex chemical formula, which includes multiple rare earth elements and heavy metals. It is one of the few minerals that incorporate both thorium and uranium in its structure, making it chemically unique. Additionally, the mineral's name highlights the importance of yttrium in its composition, which is a rare feature among oxide minerals.