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Cognitive Neuroscience (Fach) / Minerals (Lektion)
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- When changes in pressure, temperature or chemical make-up alter a rock, __________________ takes place? Metamorphism
- Name two minerals that may be left behind, when a body of salt water evaporates. GYPSUM HALITE
- The process of returning land to its original condition after mining is completed reclamation
- a natural material, whose concentration of economically valuable minerals is high enough for the material to be mined profitably ore (Erz)
- Environments in which minerals form may be located : near the earth`s surface or deep below the surface
- name the two types of mining surfache mining subsurface mining
- Name two ways to reduce the effects of mining reclamation of mined land recycling of mineral products
- name some metallic minerals gold silver copper (Kupfer)
- name some Nonmetallic minerals Calcite Gemstones (diamond, ruby, sapphire, aquamarine, topaz)
- Gemstones such as topaz or tourmaline may form in teardrop - shaped bodies called Pegmatites
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- name two minerals that crystallize out of ground water that has been heated by magma (hot water solution) Gold, copper, sulfur, pyrite, galena
- Which minerals form from slowly cooling magma that solidifies into Plutons? mica, feldspar, magnetite, quarz
- Minerals such as mica, feldspar, magnetite and quartz form from slowly cooling magma that solidifies into _________________ Plutons
- Name two examples of minerals that can form when materials dissolved (auflösen) in water crystallize on the bottoms of lakes and seas. Limestones calcite and dolomite
- A mineral deposit large and pure enough to be mined for profit is called an ore
- Name the two methods by which rocks and minerals are removed from the ground surface mining subsurface mining
- Open pits (Tagbau) and quarries (Steinbruch) are types of _______ mines Surface Mining
- If a mineral deposit is located deep within the earth, ________ mining methods are used to mine the deposit subsurface mining
- Describe two problems that can result from mining mining can destroy or disturb the habitats of plants and animals the waste products from a mine may get into water sources, which pollutes surface water and groundwater
- The process of returning land to its original state after mining is calld reclamation
- One way to reduce the effects of mining is to reduce our need for minerals. How can we reduce our need for minerals? by recycling many of the mineral products that we use, such as aluminium
- Which of the following conditions is NOT important in the formation of minerals. presence of groundwater evaporation volcanic activity wind Wind
- Metallic minerals are good conductors of ___________________- and___________________ Heat and electricity
- Some metallic minerals can be processed into ________________ that can be pounded or pressed into various shapes. metals
- Silica and calcite are _____________________________minerals that are widely used in industry nonmetallic minerals
- Nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness are called Gemstones
- What are two important characteristics of Gemstones? color and clarity.
- Which of the following minerals is an example of a gemstone mica diamond gypsum copper diamond
- The process by which land used for mining is returned to its original state is called recycling regeneration reclamation renovation reclamation
- Silicate minerals contain a combination of the elements a: sulfur and oxygen b carbon and oxygen c iron and oxygen d silicon and oxygen silicon and oxygen
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- Which of the following minerals is a nonsilicate mineral? a mica b quartz c gypsum d feldspar gypsum
- a mineral that contains a combination of silicon, oxygen and one or more metals silicate mineral
- a mineral that does not contain compounds of silicon and oxygen nonsilicate mineral
- the way in which a mineral reflects light luster
- the color of the powder of a mineral streak
- the splitting of a mineral along smooth , flat surface cleavage
- the manner in which a mineral breaks along either curved or irregular surfaces fracture
- a measure of the ability of a mineral to resist scratching hardness
- the ratio of the mass of a substance to the volume of the substance density
- Which of the following properties of minerals does Mohs scale measure? a luster b hardness c density d streak hardness