tatanan
Wangun Anthracite saka klempakan saka lebu tetanduran ing lingkungan rawa. nalika lebu tetanduran mati lan tumiba menyang rawa, banyu ngadeg rawa ngreksa saka bosok.
  
amphibolite punika rock metamorphic coarse-grained kang Forms dening metamorphism saka batuan beku mafic kaya basalt lan gabbro utawa saka metamorphism saka-sugih lempung rocks sedimentary kaya marl utawa graywacke.
  
komposisi
  
  
isi Mineral
kalsit, lempung, mineral lempung
  
amphibole, andalusite, biotite, kalsit, epidote, garnet, hornblade, kyanite, magnetite, olivine, plagioclase, pyroxene, staurolite, wollastonite
  
senyawa isi
karbon, hidrogen, nitrogen, oksigen, belerang
  
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide
  
transformasi
  
  
metamorphism
Yes
  
No
  
jinis metamorphism
metamorphism kakubur, kontak metamorphism, metamorphism regional
  
ora ditrapake
  
cuaca
No
  
Yes
  
jinis udan
ora ditrapake
  
udan kimia, udan mechanical
  
erosi
No
  
Yes
  
jinis erosi
ora ditrapake
  
erosi kimia, erosi Glacier, erosi segara, angin erosi