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Tonalita
La Tonalita es una roca intrusiva de gránulos gruesos. Se compone esencialmente de Cuarzo, PLAGIOCLASAS que son los feldespatos que tienen sodio y calcio y hornablenda que es también una roca ígnea negra o verde oscuro y brillante que contiene aluminio. aluminio. Las tonalitas tienen Definición:
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Tonalita Observe:
1-
Los
gránulos
gruesos
de
cuarzo.
2- Los gránulos negros y brillantes de hornablenda.
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Propiedades
Peso específico: 2,8 – 3,2 ton/m3 Tamaño de grano: 2 mm Factor de esponjamiento: 1,6 Resistencia a la compresión 260 – 350 mpa
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Composición Mineralógica La tonalita es una roca plutónica plutónica con cierta semejanza con la granodiorita en tanto que se caracteriza por la abundancia de cuarzo y plagioclasa como minerales félsicos, y biotita y anfíbol como minerales máficos. Sin embargo, en este caso el porcentaje de feldespato potásico es mucho menor que el de potásico plagioclasa, en muchas ocasiones accesorio.
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Composición Mineralógica
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Composición Mineralógica
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Composición Química
Dióxido de Silicio Dióxido de titanio Óxido de aluminio o alumina