tatanan
Wangun chert nalika microcrystals silikon dioksida tuwuh ing endapan alus sing dadi watu gamping utawa kapur. tatanan chert bisa dadi salah siji saka asal kimia utawa biologi.
basaltic trachandesite punika, hard rock nggoleki-grained sing formulir nalika bit lahar njupuk metu saka gunung.
komposisi
isi Mineral
quartz, Silicon
olivine, plagioclase, pyroxene
senyawa isi
silikon dioksida
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
-
kontak metamorphism
cuaca
✔
✘
✔
✘
jinis udan
-
udan biologi
erosi
✔
✘
✔
✘
jinis erosi
erosi kimia
-