Is galena rare

Answer 1

Chemical FormulaPbSCompositionLead sulfide. May contain impurities, such as silver, arsenic, antimony, and copper.Variable Formula(Pb,Ag,As,Sb,Cu)SColorSteel-grayStreakSteel-grayHardness2.5 - 3Crystal SystemIsometric3D Crystal Atlas

(Click for animated model)

Crystal Forms

and AggregatesCrystals, which may be cubes, octahedrons, or a combination of the two frequently occur. Cubes are often partially cleaved. Dodecahedrons are far less common. Also occurs massive, grainy,fibrous, platy, as veins, and as cleavage fragments.

TransparencyOpaqueSpecific Gravity7.4 - 7.6LusterMetallic. Turns somewhat dull after exposure to air.Cleavage1,3 - Cubic. May exhibit parting on octahedrons.FractureSubconchoidalTenacityBrittleIn GroupSimple SulfidesStriking FeaturesSteel-gray color, extreme heaviness, and fine cleavageEnvironmentIn In sedimentary limestone deposits, hypothermal veins and mesothermal veins, inhydrothermal replacement deposits, and in placer deposits.

Answer 2

galena has high density abt 7.5.its metallic lusture and leag greyish color and streak is its important props

Answer 3

No it is found in many parts of the world