Earth Science in the Philippines
1. Identify at least 10 minerals that are abundant in the Philiipines.
Gold, Copper, Chromite, Platinum, Gravel, Silver, Nickel, Iron, Marble, Sulfur 2. Describe the characteristic features of each minerals.
Gold- soft, lustrous yellow, malleable metal. It is one of the transition metals. It is highly sought after precious metal in jewelry
Copper- is valued for strength, malleability, ductility, and ability to conduct electricity and heat. It is also non-magnetic, resists wear, and forms a green patina which makes it resistant to corrosion.
Chromite-is the most important ore of chromium from which it derives its name. Chromium is an important metal and has a wide range of industrial uses. Chromite forms in deep ultra-mafic magmas and is one of the first minerals to crystallize.
Platinum-is a precious metal; soft, silvery-white, and dense with a beautiful lustrous sheen. It is malleable and ductile and has a high melting point. Platinum does not oxidize in air even at high temperatures and is unaffected by common acids. It is also corroded by halogens, cyanides, sulfur, and caustic alkalis.
Gravel- is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic.
Silver- is a soft, ductile, malleable, lustrous metal. It has the highest electrical and thermal conductivity of all metals. Silver is stable in oxygen and water, but tarnishes when exposed to sulfur compounds in air or water to form a black sulfide layer.
Nickel- is a hard, silvery-white metal, which is malleable and ductile. The metal can take on a high polish and it resists tarnishing in air. Nickel is ferromagnetic and is a fair conductor of heat and electricity. Most nickel compounds are blue or green.
Iron- is a ductile, gray,
Gold, Copper, Chromite, Platinum, Gravel, Silver, Nickel, Iron, Marble, Sulfur 2. Describe the characteristic features of each minerals.
Gold- soft, lustrous yellow, malleable metal. It is one of the transition metals. It is highly sought after precious metal in jewelry
Copper- is valued for strength, malleability, ductility, and ability to conduct electricity and heat. It is also non-magnetic, resists wear, and forms a green patina which makes it resistant to corrosion.
Chromite-is the most important ore of chromium from which it derives its name. Chromium is an important metal and has a wide range of industrial uses. Chromite forms in deep ultra-mafic magmas and is one of the first minerals to crystallize.
Platinum-is a precious metal; soft, silvery-white, and dense with a beautiful lustrous sheen. It is malleable and ductile and has a high melting point. Platinum does not oxidize in air even at high temperatures and is unaffected by common acids. It is also corroded by halogens, cyanides, sulfur, and caustic alkalis.
Gravel- is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic.
Silver- is a soft, ductile, malleable, lustrous metal. It has the highest electrical and thermal conductivity of all metals. Silver is stable in oxygen and water, but tarnishes when exposed to sulfur compounds in air or water to form a black sulfide layer.
Nickel- is a hard, silvery-white metal, which is malleable and ductile. The metal can take on a high polish and it resists tarnishing in air. Nickel is ferromagnetic and is a fair conductor of heat and electricity. Most nickel compounds are blue or green.
Iron- is a ductile, gray,