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Minerals. Oleh : Dr. Ir. Bambang Hendro S. SU. Yogyakarta, 14 Oktober 2004. Definitions. Element : A substance that cannot be broken down into other substances by ordinary chemical means Atom - : The smallest possible particle of an
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Minerals Oleh : Dr. Ir. Bambang Hendro S. SU Yogyakarta, 14 Oktober 2004
Definitions Element : A substance that cannot be broken down into other substances by ordinary chemical means Atom - : The smallest possible particle of an element that still retains the properties of that element Mineral - : a naturally occurring solid that has a specific chemical composition in a periodically repeating arrangement of atoms. Rock - : An aggregate composed of one or more minerals
The AtomComponents • Nucleus • Protons • Neutrons • Shells • Electrons
Crystals Crystals YBa2Cu3O7 Supercrystal YBa2Cu3O7 Supercrystal Galena Halite
MINERALS Crystal unit cells
Minerals Silicates Non-Silicates Feldspars Quartz Micas Amphibole Pyroxene Olivine Clay Minerals Carbonates Oxides Halides Sulfates Sulfides Native Elements
Silicate Crystalline StructuresIsolated Tetrahedra Olivine (Mg,Fe)2SiO4
Silicate Crystalline StructuresTetrahedra Chain Pyroxene CaMg(SiO3)2
Silicate Crystalline StructuresDouble Tetrahedra Chain Amphibole Ca2Mg5(Si4O11)2(OH)2 Actinolite Fibrous Amphibole
Silicate Crystalline StructuresSheet Tetrahedra Mica KAl2(Si3Al)O10(OH)2
Silicate Crystalline StructuresFramework Tetrahedra Quartz SiO2 Potassium Feldspar (Orthoclase) KalSi3O8
MINERALS Properties color streak specific gravity hardness luster effervescence cleavage crystal form
fiberous cleavage fiberous cleavage 3-D cleavage
1-D cleavage 1-D cleavage 2-D cleavage
No cleavage No cleavage
streak hardness
radioactive effervescence
Beryl Quartz Hexagonal crystals
Salt (cubic) Ice (hexagonal)
Created By ; Pedology Laboratory Gadjah Mada university • Yogyakarta • Editor By : Mr. Bambang Hendro S. • Ass By : Gus Sholah • Mas Doy • Alhamdulillah Bye Bye …….