Cleavage and fracture differ in that cleavage is the break of a crystal face where a new face (resulting in a smooth plane) is formed, whereas fracture is the "chipping" shape of a mineral. All minerals exhibit a fracture, even those that exhibitcleavage
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Identification of Rough Crystals
Identification of Rough Crystals 1- Two Thing Are IMPORTANT For The Identification Of Crystals. Shape & Symmetry. Surface Features. -...
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CHEMICAL COMPOSITION Carbon and Silicates are chemically resistant Silicates are more durable Carbonates are less Durable and can reac...
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DURABILITY OF GEMS MATERIALS DURABILITY is combination of three parameters. HARDNESS: Resistance to Scratching TOUGHNESS: ...
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