Zirconolite
| Zirconolite | |
|---|---|
| General | |
| Category | Oxide minerals |
| Formula (repeating unit) | CaZrTi2O7 |
| Strunz classification | 4.DH.30 |
| Crystal system | Monoclinic |
| Identification | |
| Color | Black to brown, red |
| Crystal symmetry |
Monoclinic - prismatic (2/m, zirconolite-2M) Orthorhombic - dipyramidal (mmm (2/m 2/m 2/m), zirconolite-3O) Trigonal - trapezohedral (3 2, zirconolite-3T) |
| Luster | Resinous, sub-Metallic |
| Streak | Dark brown, brownish yellow |
| Diaphaneity | Translucent, opaque |
| References | [1] |
Zirconolite is a mineral, calcium zirconium titanate; formula CaZrTi2O7. Some examples of the mineral may also contain thorium, uranium, cerium, niobium and iron; the presence of thorium or uranium would make the mineral radioactive. It is black or brown in color.[2]
References
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