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No, quartz crystal that is purple in color does not contain limestone. Limestone is a sedimentary rock composed primarily of calcium carbonate, while quartz crystal is a mineral made up of silicon dioxide. The purple color in quartz crystals is usually caused by the presence of trace elements such as manganese.

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1y ago

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What is the volume in quarts of 1.50 kg of ethyl alcohol?

The volume of 1.50 kg of ethyl alcohol is approximately 1.6 quarts.


How does the arrangement of atoms in a crystalline substance differ from that in non-crystalline substance?

Crystalline solids exhibit cleavage: that is, when you break them, the nature of the break indicates the crystal structure. Thus, grinding a crystal of NaCl (which is cubic) inevitably produces small cubes of NaCl. Noncrystalline solids such as glass break into randomly-shaped pieces. Noncrystalline solids such as glass soften as the temperature increases and have no sharply defined melting point. On the other hand, quartz, which has the same chemical composition as glass but is crystalline, melts sharply at around 1650 degrees Celsius.


Are diamonds able to scratch quarts?

Yes, diamonds are harder than quartz on the Mohs scale, so diamonds can scratch quartz.


How would a scientist tell the difference between calcite and quarts?

A scientist can differentiate between calcite and quartz by testing their hardness using the Mohs scale, where quartz has a higher hardness value of 7 compared to calcite's 3. Another method is through a reaction with acid, as calcite fizzes when in contact with dilute hydrochloric acid due to its calcium carbonate composition, while quartz remains unaffected. Lastly, they can use polarized light microscopy to identify the distinctive crystal structures of each mineral.


Are quartz and diamonds the same?

No, quartz and diamonds are not the same. Quartz is a mineral made of silicon and oxygen, while diamonds are made of carbon. Diamonds are harder than quartz and have different physical and chemical properties.