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Trachyte , trachyte Fine-grained volcanic rock of the alkaline series of intermediate rocks. Trachyte is the volcanic equivalent of syenite.
trachyte gritty vol… sea pen , sea pen See ANTHOZOA; and PENNATULACEA. Aphanitic , Aphanitic
Crystalline rocks with mineral grains that cannot be distinguished from one another without magnification have an aphanitic igneous texture… Igneous Rocks , Igneous rocks are formed by the cooling and hardening of molten magma. The word igneous comes from the Latin word igneus, meaning fire, and there are… Iron Ores , Rocks
Rocks are composed of minerals, which are natural inorganic (nonliving) substances with specific chemical compositions and structures. A rock m… Sea breeze , sea breeze See LAND AND SEA BREEZES.
sea breeze See land and sea breezes.
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NEARBY TERMS
spicular chert