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24 Cards in this Set
- Front
- Back
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what is a mineral?
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naturally occuring,inorganic solid that has a crystal structure and a definite chemical composition
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what are the five diffrent chareteristicts it has to be classified as a mineral?
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1.naturally occuring
2.inorganic 3.solid 4.crystal structure 5.definite chemical compisition |
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how can an object be naturally occuring?
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found in earths rust not manufacturedby pepole.
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name examles of naturally occuring minerals.
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rocks,cement,brick,steel,and glass
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what is inorganic?
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means that the mineral can not arise from materials that were once part of a living thing.
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name example of inorganic object?
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coal
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what is the definition of solid?
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a definite volume and shape.
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what is a crystal?
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has a flat side, called faces that meet at sharp edges and corners.
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what is the defenition of definite chemical composition?
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means that a mineral aaleays contains certian elements in definite proportions.
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waht is the defenition of element?
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substance composed of a single kind of atom.
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what is the defenition of a compound?
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tow or more elements are combined so that the elements no longer have distinct properties
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how can u identify a mineral?
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each has its own specific properties that can be used to identifiy it.
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what are the sevendiffrent ways of uidentifing a mineral?
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1.hardness
2.color 3.luster 4.density 5.crystal system 6.clevage and fracture 7.special properties |
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what is the mohs ihardness scale?
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this scale ranks ten minerals from softest tto hardet.
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how dose this scale work?
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you scratch diffrent minerals together.
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the what of a mineral is easy observed as a physical pproperty?
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color
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what ius the defenition streak?
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a mineral the color of its powder.
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what is the defenition of luster?
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is tyhe term used to describe how a mineral reflects light from its surface.
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what is the density?
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mass in a given space or mass per unit volume.
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what is the defention of crystal systems?
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crystalys of each mineral grow atom by atom to form that minerals particular crystal structure
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wgat is the defenition of cleavage ?
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a mineral that splits easily along flat surfaces
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what is the defention fracure?
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describe how a mineral looks when it breaks apert in a inregular wa.y
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what is an example of a special property?
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fluorescene.
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what is the defeniton of fluorescence?
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minerals that glow under ultraviolet light
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