Sand can tell a lot about a land. Amelia island sand most likely does the same. But before one can find out if the sand depicts the island, one most know what sand is. The pure definition of sand is grains worn from rock between 0.06 to 2.0 millimeters in diameter. Sand can be talked about as sediment when it is together with silt, gravel, and clay. (3) But on top of that basic definition, one should know what makes up sand, the ways sand is distributed, and about Amelia Island itself.
As told earlier, sand is formed from worn rock. Those rocks are the sedimentary, metamorphic, or igneous rocks. A sedimentary rock is made up of chemical, mechanical, or organic sediment. Some important types of Sedimentary rock which are distinguished by texture and chemical composition are sandstone, conglomerate, tillite, shale, sedimentary breccia, chalk, marl, coal, lignite, rock salt, gypsum. Igneous rock is rock that is formed by the solidification of a molten magma. If the rock is made from lava on the earth's surface, it is called extrusive rock, but if the igneous rock solidified beneath the earth's surface it is called intrusive rock. Metamorphic rocks start from the changing in the texture and mineral whole of sedimentary, igneous, and older metamorphic rocks under excessive pressure and heat within the earth. Some of the most common metamorphic rocks are gneiss, quartzite, schist, slate, and marble. (2)
There are tons of examples of how a type of sand tells of the land it is from because of the rocks it is made up of. A great example of that is if you find sand made from plutonic igneous rocks, then one know that the sand is probably near mountains, since plutonic igneous rocks form the bulk of mountain ranges. (6) Sand made of volcanic rocks, which is probably extrusive rock (2), are most likely near volcanoes because those rocks are formed from lava. (6) The rocks sand is made up of is essential to figuring out where the sand is from, and in the making of sand itself.
In some places there are no useable sources of sedimentary material, then the sand usually is made of organic material. Those are materials like coral, fragmented shell, and the skeletons of small planktonic organisms.