From Wikipedia, the free encyclopedia
Glain a'i liw'n amrywio rhwng pinc a gwaetgoch yw rhuddem, sy'n fath o'r mwyn gorwndwm (aliwminiwm ocsid).[1] Daw'r lliw coch o'r elfen cromiwm. Ceir mathau eraill o gonrwndwm yr ystyrir yn lain e.e. saffir.
 | |
| Enghraifft o'r canlynol | math o fwyn  |
|---|---|
| Math | corwndwm, glain, Saffir |
| Lliw/iau | rhuddem, coch, pinc |
 Ffeiliau perthnasol ar Gomin Wicimedia | |
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