P. Pauliš, Libor Hrůzek, Oldřich Janeček, Z. Dolníček, Volker Betz, Luboš Vrtiška, Radana Malíková, Ondřej Pour, F. Fediuk
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引用次数: 1
摘要
一个新的沸石矿物产地出现在Jedlka村的东北边缘，在Hlídka山的东南斜坡上，距离Benešov nad Ploučnicí(捷克共和国波希米亚北部)2公里。成矿发育于新生代钙霞石碧玉中。在软玉的小淀粉体孔洞中发现了10种沸石矿物(闪辉石- k、安钙石、调和石、辉辉石- ca、lsamvyne - ca、间沸石、钠沸石、offrite、phillipsite-K、thomsonite-Ca)。最有趣的是闪辉石- k，这是一种世界上罕见的沸石，它形成透明的，白色或微黄色的六角形透镜状晶体，高达7毫米，总是与辉石- ca共生。根据粉末x射线数据，得到gmelite - k的单位胞参数为a = 13.795 (19)， c = 9.811(6) Å， V = 1616.8(3) Å3;其定量化学分析符合实验式(K2.32Ca1.86Sr0.53Na0.20Ba0.19)Σ5.10(Al8.14Si16.01O48)·22H2O。
Zeolitová mineralizace s gmelinitem-K z Jedlky u Benešova nad Ploučnicí (Česká republika)
A new locality of zeolite minerals occurs on the NE edge of the Jedlka village, at the SE slope of the Hlídka hill, 2 km to W of Benešov nad Ploučnicí (northern Bohemia, Czech Republic). The mineralization is developed in Cenozoic analcime-nepheline tephrite. Ten zeolite mineral species (gmelinite-K, analcime, harmotome, chabazite-Ca, lévyne-Ca, mezolite, natrolite, offretite, phillipsite-K, thomsonite-Ca) were found in small amygdule cavities of tephrite. The most interesting is gmelinite-K, a rare zeolite worldwide, which forms clear, white or slightly yellowish, hexagonal lenticular crystals up to 7 mm, always intergrown with the chabazite-Ca. The unit-cell parameters of gmelinite-K, refined from the powder X-ray data, are a = 13.795 (19), c = 9.811(6) Å and V = 1616.8(3) Å3; its quantitative chemical analyses correspond to the empirical formula (K2.32Ca1.86Sr0.53Na0.20Ba0.19)Σ5.10(Al8.14Si16.01O48)·22H2O.
期刊介绍：
Bulletin Mineralogie Petrologie is a peer-reviewed journal focused especially on: mineralogy, crystal chemistry and study of crystal structures of minerals study of mineral associations and processes of their origin meteoritics, research of tectites economic geology (of ore deposits) and study of history of mining of ore deposits topographic mineralogy petrology of igneous, metamorphic and sedimentary rocks instrumental analytical methods at mineralogy and petrology mineralogy and petrology as tools for archeology and similar disciplines
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