A rare beryllium-aluminium tectosilicate with a structure similar to that of sodalite.

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  • Tugtupite — is a rare beryllium aluminium tectosilicate. It also contains sodium and chlorine and has the formula Na4AlBeSi4O12Cl. Tugtupite is a member of the silica deficient feldspathoid mineral group. It occurs in high alkali intrusive igneous… …   Wikipedia

  • tugtupite — …   Useful english dictionary

  • Tugtupit — in Quarz vom Kuannersuit (Kvanefjeld) Plateau, Narsaq, Provinz Kitaa, Grönland Chemische Formel Na4[(Cl,S)|BeAlSi4O12] Mineralklasse Silicate und G …   Deutsch Wikipedia

  • List of minerals S-T (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… …   Wikipedia

  • Sodalite — Sodalite[1] Catégorie IX : silicates[2] …   Wikipédia en Français

  • List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… …   Wikipedia

  • Tenebrescence — Tenebrescence, also known as reversible photochromism , is the ability of minerals to change colour when exposed to sunlight. The effect can be repeated indefinitely, but is destroyed by heating.Tenebrescent minerals include hackmanite sodalite,… …   Wikipedia

  • Nabesite — is a rare silicate mineral of the zeolite group with the chemical formula Na2BeSi4O10·4(H2O). It occurs as colorless to white orthorhombic crystals in thin platy mica like sheets. It has the zeolite structure. Its Mohs hardness is 5 to 6 and its… …   Wikipedia

  • Hauyne — Haüyne Haüyne Catégorie IX : silicates Haüyne sur Augite Monte Somma Italie (XX 2mm) …   Wikipédia en Français

  • Hauynite — Haüyne Haüyne Catégorie IX : silicates Haüyne sur Augite Monte Somma Italie (XX 2mm) …   Wikipédia en Français

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