http://dbpedia.org/data/Cryolite.atom2026-07-03T14:48:55.951554ZOData Service and Descriptor Documenthttp://dbpedia.org/resource/Cryolite2026-07-03T14:48:55.951554Zr < vVery common, often repeated or polysynthetic with simultaneous occurrence of several twin lawsMonoclinicminéralVitreous to greasy, pearly on {001}260mineral, der tidligere blev brugt til fremstilling af soda og alun og som flusmiddel ved fremstilling af aluminium.Weakly thermoluminescent. Small clear fragments become nearly invisible when placed in water, since its refractive index is close to that of water. May fluoresce intense yellow under SWUV, with yellow phosphorescence, and pale yellow phosphorescence under LWUV. Not radioactive.Crlnα = 1.3385–1.339, nβ = 1.3389–1.339, nγ = 1.3396–1.34None observedminerał z gromady halogenków209.9Brittlec = 5.4024 Å; β = 90.18°; Z = 243かつてアルミニウムの製錬に要した鉱石PrismaticNa3AlF6a = 7.7564 Å,Soluble in AlCl3 solution, soluble in H2SO4 with the evolution of HF, which is poisonous. Insoluble in water.b = 5.5959 Å,mineraleP21/nrelativ seltenes Mineral, Natrium-Aluminium-Fluoritrazmeroma redek mineral; natrij-aluminijev fluoritmineral2.5Colorless to white, also brownish, reddish and rarely black3CryoliteUnevenTransparent to translucentmineral haluroUsually massive, coarsely granular. The rare crystals are equant and pseudocubic11.6perovskite, halide mineral (as opposed to the chemical compound)CryoliteBiaxial24White