there is no such thing as race in 1950 the united nations educational scientific and cultural organization unesco issued a statement asserting that all humans belong to the same species and that race is not a biological reality but a myth
Split and merge into it. Answered by The Community. Making the world better, one answer at a time. To determine what type of luster a mineral would have that looked like plastic you would first need to know what type of plastic it replicated.A dull plastic such as that of a milk jug would be considered a resinous luster. If the plastic was very shiny or polished looking it would be a vitreous luster.plit and merge into it. Answered by The Community. Making the world better, one answer at a time. To determine what type of luster a mineral would have that looked like plastic you would first need to know what type of plastic it replicated.
2) STREAK. This is the colour of the line drawn when a mineral is rubbed across a piece of unglazed tile. Often the line is the same or similar colour of the specimen.This test is useful because in a few cases, similar looking minerals have different streaks - so this test is a definitive identifier. Luster is what the surface looks like when the light reflects off of the mineral. Some words to describe luster are: 1  DULL / EARTHY - very dull, mainly minerals that are porous eg kaolinite, orthoclase.  WAXY - like the surface of a candle, like wax paper eg opal, chalcedony.