Rapakivi granite

（重定向自Rapakivi）

Rapakivi from a moraine in Northern Germany.

Rapakivi granite is a hornblende-biotite granite containing large rounded crystals of orthoclase mantled with oligoclase. The name has come to be used most frequently as a textural term where it implies plagioclase rims around orthoclase in plutonic rocks. Rapakivi is Finnish for "crumbly rock", because the different heat expansion coefficients of the component minerals make exposed rapakivi crumbly.

单词	rapakivi
释义	rapakivi /ˌrɑːpə'kiːviː/ 英汉-汉英词典环斑花岗岩;环斑状;奥环状花岗岩英语例句库 The rapakivi granites have a number of petrological peculiarities. 环斑花岗岩具有若干岩石学的特征。声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。英语百科 Rapakivi granite （重定向自Rapakivi） Rapakivi granite is a hornblende-biotite granite containing large rounded crystals of orthoclase mantled with oligoclase. The name has come to be used most frequently as a textural term where it implies plagioclase rims around orthoclase in plutonic rocks. Rapakivi is Finnish for "crumbly rock", because the different heat expansion coefficients of the component minerals make exposed rapakivi crumbly.
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rapakivi /ˌrɑːpə'kiːviː/

Rapakivi granite