| 词条 | Zirconolite |
| 释义 |
| name = Zirconolite | boxwidth = | boxbgcolor = | image = | imagesize = | alt = | caption = | category = Oxide minerals | formula = CaZrTi2O7 | molweight = | strunz = 4.DH.30 | system = 2M polytype: monoclinic 3O polytype: orthorhombic 3T polytype: trigonal | class = 2M polytype: prismatic (2/m) 3O polytype: dipyramidal (mmm (2/m 2/m 2/m)) 3T polytype: trapezohedral (3 2) | unit cell = | color = Black to brown, red | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = Resinous, sub-Metallic | streak = Dark brown, brownish yellow | diaphaneity = Translucent, opaque | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | 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] References1. ^Mindat {{Titanium minerals}}{{Calcium compounds}}{{Titanium compounds}}{{Zirconium compounds}}{{Oxide-mineral-stub}}2. ^Webmineral data 4 : Calcium minerals|Zirconium minerals|Titanium minerals|Oxide minerals |
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