Answer:
Cleavage of a mineral is defined as the direction along which the mineral breaks over the flat mineral surface. It is directly dependent on the mineral's crystallographic structure.
Slaty cleavage refers to the cleavage that is commonly found in the low grade metamorphic rock slate. Here, the fine grained minerals are so closely spaced and the lines of weakness are all parallel to each other, that allows the minerals to break in fine and thin layers. During the time of formation of slate, the smaller fractures are formed due to the increasing pressure. When groundwater moves through these fractures it forms a weak zone due to which these slaty cleavage forms.
When the rocks undergoes deformation and changes in the pressure and temperature condition then the cleavages are formed on the mineral's surface. The calcite contains rhombohedral cleavage are considered to be the perfect cleavage. Whereas the cleavage in amphibole is uneven and comprised of two directions that intersect each other at 56° and 124°.
It will start 5 years after the 20s
Answer:
central Pacific ocean
Kiribati, officially the Republic of Kiribati, is an independent island nation in the central Pacific Ocean. The permanent population is over 119,000, more than half of whom live on Tarawa atoll. The state comprises 32 atolls and one raised coral island, Banaba.
<em>it took <u>130 years </u> to build Sagrada familia... :) it build from <u>1852 to 1926...</u>
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The answer is 300.
Sorry this answer is so late, I was just learning about it! Hope it helps. :)
