Difference between revisions of "Translations:AY Honors/Rocks & Minerals - Advanced/Answer Key/37/en"
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[[Image:Sodium chloride crystal.png|thumb|200px|A crystal of Sodium Chloride (common table salt)]] | [[Image:Sodium chloride crystal.png|thumb|200px|A crystal of Sodium Chloride (common table salt)]] | ||
− | The isometric crystal system (or cubic) is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in metallic crystals. | + | The isometric crystal system (or cubic) is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in metallic crystals. Isometric crystals include |
# '''Sodium Chloride''' (NaCl, common table salt) | # '''Sodium Chloride''' (NaCl, common table salt) | ||
# '''Gallium arsenide''' (GaAs) is a compound of two elements, Gallium and Arsenic. It is an important semiconductor and is used to make devices such as microwave frequency integrated circuits. | # '''Gallium arsenide''' (GaAs) is a compound of two elements, Gallium and Arsenic. It is an important semiconductor and is used to make devices such as microwave frequency integrated circuits. | ||
− | # '''Zirconium dioxide''' (ZrO<sub>2</sub>), sometimes known as zirconia, is a white crystalline oxide of zirconium. | + | # '''Zirconium dioxide''' (ZrO<sub>2</sub>), sometimes known as zirconia, is a white crystalline oxide of zirconium. Single crystals of the cubic phase of zirconia are commonly used as a substitute for diamond in jewelry. Like diamond, cubic zirconia has a cubic crystal structure and a high index of refraction. Discerning a good quality cubic zirconia gem from a diamond is difficult, and most jewellers will have a thermal conductivity tester to identify cubic zircona by its low thermal conductivity (diamond is a very good thermal conductor). |
# '''Lead(II) nitrate''' is a chemical compound, the inorganic salt of nitric acid and lead, with the formula Pb(NO<sub>3</sub>)<sub>2</sub>. It is a colorless crystal or white powder and a strong, stable oxidizer. | # '''Lead(II) nitrate''' is a chemical compound, the inorganic salt of nitric acid and lead, with the formula Pb(NO<sub>3</sub>)<sub>2</sub>. It is a colorless crystal or white powder and a strong, stable oxidizer. | ||
# '''Copper(I) oxide''' or cuprous oxide (Cu<sub>2</sub>O) is an oxide of copper. | # '''Copper(I) oxide''' or cuprous oxide (Cu<sub>2</sub>O) is an oxide of copper. | ||
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Latest revision as of 15:40, 22 April 2021
The isometric crystal system (or cubic) is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in metallic crystals. Isometric crystals include
- Sodium Chloride (NaCl, common table salt)
- Gallium arsenide (GaAs) is a compound of two elements, Gallium and Arsenic. It is an important semiconductor and is used to make devices such as microwave frequency integrated circuits.
- Zirconium dioxide (ZrO2), sometimes known as zirconia, is a white crystalline oxide of zirconium. Single crystals of the cubic phase of zirconia are commonly used as a substitute for diamond in jewelry. Like diamond, cubic zirconia has a cubic crystal structure and a high index of refraction. Discerning a good quality cubic zirconia gem from a diamond is difficult, and most jewellers will have a thermal conductivity tester to identify cubic zircona by its low thermal conductivity (diamond is a very good thermal conductor).
- Lead(II) nitrate is a chemical compound, the inorganic salt of nitric acid and lead, with the formula Pb(NO3)2. It is a colorless crystal or white powder and a strong, stable oxidizer.
- Copper(I) oxide or cuprous oxide (Cu2O) is an oxide of copper.