Which physical property shows that a mineral sparkles when it reflects light? Cleavage Hardness Luster Streak color

Luster

Explanation:

Luster is the physical property of minerals showing  how a mineral reflects light. There are two types of  Luster which are

Metallic Luster---Metallic luster are for minerals that look  reflective like that of a polished metal. Examples include gold and copper.

Nonmetallic minerals are minerals that do not look reflective and polished like like metal, Instead their appearance may look waxy, Vitreous, Pearly, Silky o, Resinous , greasy or Adamantine etc. Examples include

Adamantine-- Diamond, Vitreous--quartz,Greasy--opal etc

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explanation:

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the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.