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Why are the crystals in pillow basalt than those in many other examples of basalt?
A factor that determines crystal size in igneous rocks is the speed in which the lava/ magma crystallised or froze. As pillow basalts form at mid ocean ridges where magma is erupted into direct contact with the cold sea water the crystals form very fast and are therefore small. Other basalts erupted on land still have relatively small crystals and crystallised relatively fast but overall slower then pillow basalts.
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How do you differentiate granite from basalt?
Although they are both igneous rocks which have solidified from magma, granite is an intrusive igneous rock and basalt is an extrusive igneous rock. As an extrusive igneous rock, the magma that formed granite had a long time to cool underground, and therefore consists of larger, visible mineral crystals. Basalt on the other hand, cooled rather rapidly from magma after eruption from a volcano and therefore is aphanitic, with crystals too small to be seen with the naked eye. There is also a difference in chemistry. Granite is considered felsic, with a preponderance of silicate minerals like quartz and orthoclase feldspar. Basalt is considered mafic, with an abundance of heavier minerals like olivine and amphibole, thus making it heavier than granite. These minerals also give basalt a dark color compared to the lighter colored granite.
What are examples of resistant rock?
Some examples of resistant rocks include granite, quartzite, and basalt. These rocks are able to withstand weathering and erosion processes better than other types of rocks, making them more durable and long-lasting.
What is the difference between borax crystals and other natural crystals?
Borax crystals are specifically composed of the mineral borax, while other natural crystals can be formed from a wide variety of minerals such as quartz, calcite, or fluorite. Borax crystals have distinct properties and chemical composition that distinguish them from other natural crystals.
Is basalt an example of a felsic rock?
No, basalt is not an example of a felsic rock. Basalt is an example of a mafic rock, which is rich in iron and magnesium and typically dark in color. Felsic rocks, on the other hand, are rich in silica and aluminum and are lighter in color.
Is basalt found in Britain?
Yes, basalt can be found in Britain. The Giant's Causeway in Northern Ireland, for example, is made up of basalt columns. Additionally, basalt can also be found in various other locations across the UK, often as part of volcanic rock formations.
Why are the crystals in pillow basalt smaller than those in many other examples of basalt?
A factor that determines crystal size in igneous rocks is the speed in which the lava/ magma crystallised or froze. As pillow basalts form at mid ocean ridges where magma is erupted into direct contact with the cold sea water the crystals form very fast and are therefore small. Other basalts erupted on land still have relatively small crystals and crystallised relatively fast but overall slower then pillow basalts.
Why are the crystals in pillow basalt smaller than those of in many other examples of basalt?
A factor that determines crystal size in igneous rocks is the speed in which the lava/ magma crystallised or froze. As pillow basalts form at mid ocean ridges where magma is erupted into direct contact with the cold sea water the crystals form very fast and are therefore small. Other basalts erupted on land still have relatively small crystals and crystallised relatively fast but overall slower then pillow basalts.
Why are crystals in pillow basalt smaller then ones in basalt?
A factor that determines crystal size in igneous rocks is the speed in which the lava/ magma crystallised or froze. As pillow basalts form at mid ocean ridges where magma is erupted into direct contact with the cold sea water the crystals form very fast and are therefore small. Other basalts erupted on land still have relatively small crystals and crystallised relatively fast but overall slower then pillow basalts.
Why are the Crystal's in pillow basalt smaller than those of in other example of basalt?
Pillow basalts are lavas that were erupted and cooled in sea water. Therefore, they have had very little time to form crystals of any size, during rapid solidification, when compared to most land or air-born eruptions.
Why are crystals in basalt that formed under water smaller than those in basalt that formed on ground?
Crystals in basalt that formed underwater are smaller because they cool faster in the water, resulting in less time for the crystals to grow. On the other hand, crystals in basalt that formed on the ground have more time to grow as they cool more slowly, leading to larger crystal sizes.
Why are the crystals in pillows basalts smaller than those in many other examples of basalts?
A factor that determines crystal size in igneous rocks is the speed in which the lava/ magma crystallised or froze. As pillow basalts form at mid ocean ridges where magma is erupted into direct contact with the cold sea water the crystals form very fast and are therefore small. Other basalts erupted on land still have relatively small crystals and crystallised relatively fast but overall slower then pillow basalts.
What are some more examples extrusive igneous rocks?
Some other examples are Andesite, Basalt, Rhyolite, and Scoria.
Why does Granite take much longer to form than Basalt?
hmmm, granite is intrusive, formed and cooled slowly at depth with larger individual crystals. Basalt is extrusive, fine grained (small crystals and cooled quickly. The intrusive equivalent of basalt is gabbro. For granite; rhylolite
What other kinds of food are in the form of crystals?
Maple syrup and honey are two good examples.
How the moon reflects sun lights .Is with the help oxygen crystals present on surface of moon?
There are no oxygen crystals on the moon. The moon's surface is made of a rock called basalt, a rock that can be found on Earth as well. The moon reflects sunlight just like any other object does.
Does halite have cleavage or fracture?
Halite typically displays cleavage along three planes at right angles to each other. However, if halite is subjected to mechanical stress, it can also exhibit a conchoidal fracture pattern due to its brittle nature.
Is basalt equal to granite?
No. Basalt is extrusive whilst granite is intrusive, among other things.
