tremolite
51Pyroxénoïdes — Pyroxénoïde Les pyroxénoïdes sont des inosilicates en chaîne qui, comme les pyroxènes, ont rapport Si : O = 1 : 3. La chaîne tétraédrique a une période supérieure à deux tétraèdres et cette caractéristique différencie les pyroxénoïdes… …
52Scheelite — [1] Catégorie VII : sulfates, sélénates tellurates, chromates, molybdates, tungstates[2] …
53Uvarovite — Uvarovite[1] Catégorie IX : silicates[2] …
54Vallée d'Aure — La vallée d Aure sous une mer de nuages Massif Pyrénées Pays …
55Тремолит — Формула Сa2Mg5Si8O22(OH)2 Сингония …
56nephrite — /nef ruyt/, n. Mineral. a compact or fibrous variety of actinolite, varying from whitish to dark green: a form of jade. [1785 95; < G Nephrit. See NEPHR , ITE1] * * * Gem quality, usually green silicate mineral in the tremolite actinolite… …
57pyroxene — pyroxenic /puy rok sen ik/, adj. /puy rok seen, peuh , puy rok seen /, n. any of a very common group of minerals of many varieties, silicates of magnesium, iron, calcium, and other elements, occurring as important constituents of many kinds of… …
58talc — /talk/, n., v., talcked or talced /talkt/, talcking or talcing /tal king/. n. 1. Also, talcum /tal keuhm/. a green to gray, soft mineral, hydrous magnesium silicate, Mg3(Si4O10)(OH)2, unctuous to the touch, and occurring usually in foliated or… …
59richterite — ▪ mineral also called soda tremolite amphibole mineral, a sodium silicate of calcium and magnesium or manganese. It occurs in thermally metamorphosed limestones and skarns or as a hydrothermal product in alkaline igneous rocks. Richterite …
60Ometepe (archaeological site) — Ometepe Island is an important archaeological site, located in the Lake Nicaragua in the Republic of Nicaragua, administratively belongs to the Rivas Department. Its name derives from the Nahuatl words ome (two) and tepetl (mountain), meaning two …
