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陨石名称: NWA 13986
交易地点:摩洛哥
购买日期:2020年12月
陨石分类: Winonaite 辉石无球粒陨石
陨石总重:1845克(2块)
风化等级:低
冲击变质等级:低
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NWA13986辉石无球粒陨石与其他的Winonaite有显著的区别,期待更多的研究成果。
Winonaites大致具球粒陨石质的矿物和化学组成,具无球粒陨石和重结晶的结构。为细-中粒的等粒状岩石,有一些样品见有残余的球粒,其矿物组成介于E与H球粒陨石之间,Winonaite陨石由顽辉石、橄榄石、透辉石、 斜长石、金属、陨硫铁、磷灰石以及一些特征性副矿物如:硫锰矿(Mn,Fe)S、陨硫铬铁矿(FeCr2S4)、铬 铁矿、金红石、陨磷铁镍石和富钾长石等组成。截至目前,全世界仅有57块Winonaite原始无球粒陨石。
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