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CeladoniteCeladonite is a mica group mineral, a phyllosilicate of potassium, iron in both oxidation states, aluminium and hydroxide with formula: K(Mg,Fe2+)(Fe3+,Al)[Si4O10](OH)2. Additional recommended knowledgeIt crystallizes in the monoclinic system and usually forms massive aggregates of prismatic crystallites or in dull clay masses. It is soft with a Mohs hardness of 2 and a specific gravity of 3. Typically occurs as dull gray-green to bluish green masses. It forms vesicle fillings and linings in altered basaltic lavas. It was first described in 1847 on Mt. Baldo, near Verona, Italy. The name is from the French celadon, for sea-green. Categories: Potassium minerals | Iron minerals | Magnesium minerals | Aluminium minerals | Hydroxide minerals | Silicate minerals |
| This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Celadonite". A list of authors is available in Wikipedia. |
