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What are the two main groups of minerals? |
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What are nonsilicate crystalline structures? |
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Cubes, hexagonal prisms, irregular masses |
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What is a double chain silicate? |
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Two bonded single-chained |
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What two elements must be present in a silicate? |
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Which of the following groupings lists only minerals? |
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fluorite, feldspar, copper |
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Which of the following are chatoyancy and asterism associated with? |
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A mineral is described as fluorescent when it |
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glows under ultraviolet light |
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what mineral property involves iron? |
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because many minerals are similar in color and certain elements may change the color, color is |
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Unstable atomic nuclei decay over time into stable nuclei, causing a mineral to be |
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mineral shows a cat's-eye effect |
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A phosphorescent mineral glows |
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after an ultraviolet light is turned off |
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do not link with silicon or oxygen atoms |
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a six-sided star shape appears when a mineral reflects light |
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Double-chain silicates are formed when |
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Definition
two single-chains of tetrahedra bond to each other |
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Cubes, hexagonal prisms, and irregular masses are examples of |
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three common nonsilicate crystalline structures |
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When each tetrahedon shares three of its oxygen atoms with other tetrahedon |
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sheet silicates are formed |
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Which of the following is not one of the four criteria for determining whether or not a substance is a mineral? |
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unstable atomic nuclei decay over time, releasing particles and energy |
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The color of a mineral in powdered form is called the minerals |
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A mineral is a natural solid that usually is |
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inorganic, with characteristic physical properties |
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Single-chain silicates are crystalline structures in which tetrahedra form a |
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ring by sharing oxygen atoms |
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The hardest mineral on the Mohs hardness scale is |
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Fluorescence is the property of a mineral that causes it to |
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glow under ultraviolet light |
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the mass of a substance to the volume of the substance |
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what is true of isolated tetrahedra? |
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they do not link with other silicon or oxygen atoms |
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Double-chain silicates form when |
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Definition
two single-chains of tetrahedra bond to each other |
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Which of these are common nonsilicate crystalline structures? |
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Definition
cubes, hexagonal prisms, octahederal prisms, irregular masses |
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Light that is reflected from a mineral's surface is called |
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Cleavage is the tendency of a mineral to |
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split along specific planes, forming flat surfaces |
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