CaCO3 calcite-Leiria-Portugal - Rock-Hounding on Waymarking.com

General Information:

Formula: CaCO3
Hardness on the Mohs scale: 3.
Specific gravity: 2.6 to 2.8.
Color: transparent, white, other.
Stroke Color: white.
Luster: vitreous.
Crystals: hexagonal.
Fracture: fine in all three directions.
Source: hydrothermal, sedimentary.
Etymology: from Latin Calx, burnt lime.
Reacts strongly with hydrochloric acid

Calcite is a mineral important in industrial use, especially as calcium cabonate, a material made primarily from the shells of once living organisms. Calcite is a common mineral of limestone, which can be ground mixed with an alumino-silicate rock that contains some iron (usually shale), finely pulverized. The mixture is then heated intensely and ground in order to obtain a gray powder commonly called portland cement. Portland cement has been used extensively as a low-cost building material world-wide.

You may visit anytime.

calcite é um mineral importante para o uso industrial, especialmente no fabrico de cabonate cálcio, um material feito principalmente a partir de conchas antigos s organismos vivos.A calcita é um mineral comum de calcário, que podem ser moídos misturados com uma pedra de alumino-silicato que contém algum ferro (geralmente de xisto), finamente pulverizada.A mistura é então aquecida intensamente e moído para a obtenção de um pó cinzento, comumente chamado de cimento . O cimento d tem sido amplamente utilizado como material de construção de baixo custo no mundo.

Você pode visitar em qualquer altura.

Fossils: no Gems: yes Meteorites: no Minerals: yes Rock Types: mainly calcite, but also some marble, limestone Admission price: 0.00 (listed in local currency) Hours of Operation: Not listed

Visit Instructions:
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Recent Visits/Logs:

Date Logged Log User Rating   08/03/2014 bmps2003 visited it 06/17/2011 tofixe visited it

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