baddeleyite


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baddeleyite

(ˈbædlɪˌaɪt)
n
(Minerals) a mineral consisting largely of zirconium dioxide: a source of zirconium. Formula: ZrO2
[C19: named after J. Baddeley, British geologist]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.baddeleyite - a mineral consisting of zirconium oxide
atomic number 40, zirconium, Zr - a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
References in periodicals archive ?
The mine is Russia's second largest producer of apatite concentrate and the world's only producer of baddeleyite concentrate.
Salvi, "An experimental study of the solubility of baddeleyite (Zr[O.sub.2]) in fluoride-bearing solutions at elevated temperature," Geochimica et Cosmochimica Acta, vol.
Their topics include local bulk composition effects of metamorphic mineral assemblages, diffusion: obstacles and opportunities in petrochronology, petrochronology by laser-ablation inductively coupled plasma mass spectrometry, secondary ionization mass spectrometry analysis in petrochronology, zircon: the metamorphic mineral, the petrochronology of zircon and baddeleyite in igneous rocks: reconstructing magmatic processes at high temporal resolution, garnet: a rock-forming mineral petrochronometer.
In nature it mainly occurs as the free oxide Zr[O.sub.2] (baddeleyite), but more commonly as zircon (ZrSi[O.sub.4]).
XRD analysis for the dry powder of white MTA Angelus root repair shows the presence of tricalcium silicate (alite of hatrurite, [Ca.sub.3](Si[O.sub.4])O; card number: 01-070-8632), calcium sulfate anhydrite (CaS[O.sub.4]; card number: 00-003-0368), calcium carbonate (aragonite, CaC[O.sub.3]; card number: 00-003-0893), calcium oxide (lime, CaO; card number: 00-004-0777), calcium hydroxide (portlandite, Ca[(OH).sub.2]; card number: 01-070-5492), silicon oxide (sristobalite low, Si[O.sub.2]; card number: 04-008-7818), zirconium oxide (baddeleyite, Zr[O.sub.2]; card number: 00-0241165), calcium pyrophosphate ([Ca.sub.2][P.sub.2][O.sub.7]; card number: 00-002-0647 and 00-003-0605), and tricalcium phosphate ([Ca.sub.3][(P[O.sub.4]).sub.2]; card number: 00-003-0681) (Figure 2(a)).
Designed to produce 948,000 mt/y of apatite concentrate and 130,000 mt/y of iron ore concentrate, the plant will raise Kovdorskiy's annual in-concentrate capacity to 2.5 million mt of apatite, 5.6 million mt of iron ore and 8,000 mt of baddeleyite. The company is also increasing capacity at its open pit.
Above 1,400[degrees]C, zircon (ZrSi[O.sub.4]) becomes unstable and partially melts to form baddeleyite (Zr[O.sub.2]) and silicate-rich phases (Wang et al., 2006; Vaczi et al., 2009).
apatite, zircon, ilmenite, baddeleyite) are commonly formed between early-precipitated crystals (e.g.
"It can go up to half a million times magnification." Moser and his team need this kind of precision to hunt their elusive quarry: tiny crystals of mineral called baddeleyite (Zr[O.sub.2]), a rare zirconium oxide that provides clues about Mars' past.