Mineral - is a solid, natural material made from nonliving substance in Earth's crust, Streak - The color of a minerals' powder, Hardness - A minerals ability to scratch another minerals , Cleavage - A mineral that breaks in smooth layers, Fracture - A mineral that breaks along rough or uneven surfaces displays, Luster - Is the way a mineral reflects light, Talc - A soft mineral is number 1 on the scale, Diamond - The hardest mineral is number 10 on the scale, Mohs' Hardness Scale - The scale used hardness to rank minerals from 1 to 10 ,

Mineral Properties Review

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