Weathering & Erosions

• Weathering - is the change of physical/chemical shape/properties of rocks
• Mechanical Weathering is the change of the rocks as physical form.
• The example of Mechanical weathering is Earthquake, landslide and destruction
• Chemical Weathering is the change of the rocks as physical and chemical and it involves water.
• The example of chemical weathering is Earthquake that came from tsunami, landslide because of the heavy rains and mining with explosive devices
• Erosion is where the rocks and soils are moved from one place to another
• The example of Erosion is landslide and avalanche
• Weathering and Erosion is where the rocks are moved together and changes/breaks its properties
• All minerals (rocks) are solid; but it may depend of the hardness of it
• Salt has the element (NaCI) Sodium Chloride
• Diamond has the element called Carbon (C)
• In the properties of minerals, Luster is the quality of light that is being reflected
• Luster of Diamond is rainbow
• Streak is the color if mineral when it is on powder formed. The example of it was Diamond is whitish/gray and the Ruby is Pink
• Hardness is the measure of minerals resistance to scratching
• Cleavage when a mineral breaks & form from the breakage (smooth)
• Fracture is the way a mineral breaks when it's not smooth
• Specific Gravity is the weight of a substance compared with water.
• Mineral is an inorganic solid material which have definite chemical composition and crystal structure
• In the Mohs Hardness Scale, Talc is Cleavage and can break by using finger and have been used on cosmetic ingredients
• Gypsum has Fracture and can be broken easily like glass
• Calcite is Fracture and can be break by copper coins
• Fluorite is Fracture and can break by steal blade/glass plate
• Apatite is Cleavage
• Orthoclase is Cleavage and can break by steel nail/unglazed ceramic plate
• Quartz is Fracture
• Topaz, Corundom and Diamond is Cleavage used in jewelry