a mineral is a naturally formed, inorganic solid that has a definite crystalline structure
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A mineral is a naturally formed, inorganic solid that has a definite crystalline structure.
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SolidCannot be a liquid or a gas
Naturally OccurringFound in nature, not man-made
InorganicIs not alive and never was, non-living
Fixed compositionHas a chemical formula, most are formed from
compounds of two or more elements, some minerals consist of one element ex. Au
Crystal Structure (Crystalline)A definite structure in which atoms are arranged
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Is it non-living material?Is it a solid?Is it formed in nature?Does it have a crystalline structure?
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Wood
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Gold
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Fossil
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Topaz
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Bones
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Granite
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Quartz
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Pearls
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Talc
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Icebergs
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Diamond
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Coal
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Rock Salt
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Minerals
a) Goldb) Topazc) Quartzd) Talce) Iceberg*f) Diamonds
Non-Minerals
a) Wood - once livingb) Fossils – once livingc) Bone - living materiald) Granite - intrusive igneous
rock e) Pearls – made by oystersf) Coal - Sedimentary rockg) Rock Salt – Sedimentary rock
According to IMA – ice is listed as a mineral
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Color: Physical Property that can be observed without
doing anythingStreak:
Color of the powder it leaves when you rub it along a surface
Luster: How it shines; how it reflects light
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Cleavage and Fracture:The way a mineral breaksCleavage: Mineral splits easily with a flat
surfaceFracture: Minerals that break apart in an
irregular way
Special Properties:GlowsMagnifiesMagneticReactive
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Density: Mass in a given space; mass per volume
Hardness: Mohs hardness scaleScratch test: Minerals can only scratch those
minerals softer than it is
Crystal Systems: Number and angle of Crystal faces6 crystal systems