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conservation.ca.gov
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Definitions (222)
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dense
a. Compact, fine-grained, lacking pore space. b. Rock or mineral with a high specific gravity.
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Definition
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a
acicular:
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adamantine
A brilliant luster like that of a diamond.
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aggregate
a. A mass of rock particles, grains of minerals, or both. b. Irregular mass of crystals. c. Sand, gravel, crushed stone or rock that forms the major part of concrete.
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alkaline
Containing sodium and/or potassium in excess of the amount needed to form feldspar with the available silica. An alkaline rock, for example, contains more than average amounts of potassium- and sodium [..]
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amorphous
Without form; applied to rocks and minerals which have no definite external crystalline structure.
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amphibole
A mineral group that consists of common, dark-colored, rock-forming silicate minerals. The most common minerals are hornblende, tremolite, and actinolite.
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andesite
A volcanic rock composed essentially of the mineral andesine and one or more of the mafic minerals.
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anhedral
Refers to a crystal with no well-formed external faces.
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