katophorite

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List of minerals K-M (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
Arfvedsonite — is a sodium amphibole mineral with composition: Na3(Fe,Mg)4FeSi8O22(OH)2: sodium, iron, magnesium, inosilicate, hydroxide. It crystallizes in the monoclinic prismatic crystal system and typically occurs as greenish black to bluish grey fibrous to … Wikipedia
TRACHYTES ET PHONOLITES — Les anciens géologues appelaient trachytes des roches volcaniques claires et rugueuses ( 精福見﨑羽﨟: raboteux), et réservaient le nom de phonolites ( 﨏諸益兀: son, 晴礼﨟: pierre) à des roches assez voisines, mais sonores sous le marteau, en raison… … Encyclopédie Universelle

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