A rarity is the bitumen containing pseudomineral ozocerite.
2.
As a rarity occurs the pseudomineral ozocerite.
परिभाषा
a waxy mineral that is a mixture of hydrocarbons and occurs in association with petroleum; some varieties are used in making ceresin and candles पर्याय: ader wax, earth wax, mineral wax, ozokerite,
मोबाइल