Essexite lan Batubara Definition

Essexite

Batubara

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1 Definition

1.1 definisi

essexite kang uga dikenal minangka nepheline monzogabbro, iku werna abu-abu utawa ireng holocrystalline plutonic rock iigneous peteng

coal iku combustible-ireng coklat ireng utawa sedimentary rock biasane kedadean ing parang tingkat ing lapisan sing disebut kasur coal

1.2 Sajarah

1.2.1 asal

usa

1.2.2 panemu

Dingertèni

john peter Salley

1.3 Etimologi

saka dhaerah ing Essex County, massachusetts, kita

saka col term english lawas, kang wis temenan Mineral karbon fosil wiwit abad kaping 13

1.4 kelas

batuan beku

rocks sedimentary

1.4.1 sub-kelas

awet rock, hard rock

awet rock, rock alus

1.5 kulawarga

1.5.1 group

plutonic

ora ditrapake

1.6 kategori liyane

rock grained nggoleki, rock opaque

rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque

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