Please research the following terms and see what you come up with. Explain what each item is. Mineral - Minerals are something that occur naturally in nature. They are not a bi-product of plants and animals, which means they at inorganic. Minerals cannot be a liquid or gas, but have to be in a solid form. The chemical make up of each mineral defines what that mineral is. You can also see the atomic structure being a large part of what makes a particular mineral a mineral. Minerals are a large part of our daily lives because they used in our economy, in our health care and in some industries. We use products that are affected by a different mineral through out our day, making them an important aspect of our lives. A few examples of a mineral are - Sodalite which has a chemical make up of Na8 Al6 Si6 O24 Cl2. Sodalite is made from the chemical structures of Sodium, Aluminum, Silicon, Oxygen and Chlorine. Each chemical has a certain amount of atoms to create the structure - sodium has 8 atoms, aluminum has 6, silicon has 6, oxygen has 24 and chlorine has 2, making sodalite a mineral with 46 atoms in it! Hematite which has a chemical make up of Fe2 O3, equaling 5 atoms, and Amethyst with a chemical make up of SiO2, equaling 3 atoms. Rock - There are three major categories that rocks are typically classified by. These categories are igneous, sedimentary and metamorphic. Each classification has its own composition, texture and structure. Igneous rocks are derived from magma, sedimentary rocks consists of different fragments of different rocks or materials that preexisted and metamorphic rocks are rocks that were once igneous or sedimentary rocks that have under gone a change which has physically changed the rock. Igneous rocks... ... middle of paper ... ...steel. Works Cited What is a mineral?, Author Unknown, http://www.oum.ox.ac.uk/thezone/minerals/define/ The Gallery of Minerals, Author Unknown, http://www.rocksandminerals4u.com/minerals.html Home of the periodic table, Author Mark Winter, https://www.webelements.com Rocks: Igneous, Sedimentary and Metamorphic, Author Unknown, http://geology.com/rocks/ Rock, Author Cornelius Klein, http://www.britannica.com/EBchecked/topic/505970/rock What is a gem?, Author Don Clark, http://www.gemsociety.org/article/what-is-a-gem/ Gemstone, Author Unknown, http://m.dictionary.com/definition/gemstone 1 - Main Entry Crystal, Author Unknown, http://i.word.com/idictionary/crystal 2 - Crystal, Author Unknown, http://m.dictionary.com/definition/crystal Main Entry Metal' Author Unknown, http://i.word.com/idictionary/metal Metal, Author Unknown, http://www.thefreedictionary.com/metal
Shown in the picture above is volcanic extrusive igneous rock known as andesite. They were imported here to Laguna Beach to help minimize erosion (Merton Hill, p. 10-11). Extrusive Igneous rocks are formed on Earths surface due to lava quickly cooling or mixing with different materials such as ash or cinders from an eruption. There are two different types of extrusive igneous rocks; Plutonic and Volcanic. Andesite is known for being gray in color and being made up of very coarse grainy textures, which make it much harder to break down than sedimentary rocks. Unlike loose gravel and other sediments igneous rocks are known for being able to slow down seismic waves from earthquakes which cause less damage to surface structures.
Quartzite is a non-foliated metamorphic rock. This rock is intrusive and forms when exposed to extreme amounts of heat and pressure. Over a billion years ago, there was an ocean where Kamiak Butte is. This ocean floor was made of sand, as time went on oceans receded and the exposed sand underwent processes that turned it into sandstone – or as we learned in class the process of lithification. Years later, this sandstone would morph into the quartzite that is present now.2
More recently than Zeck’s work, Cesare et al. (1997), only divided the xenoliths into two main types: garnet-biotite-sillimanite and spinel-cordierite xenoliths. The quartz-cordierite rocks, distinguished by Zeck (1970), were interpreted as the products of interaction between garnet-biotite-sillimanite xenoliths and blebs of mafic magma and are not recognised. The xenoliths were observed to contain widespread occurrences of rhyolitic glass as...
a description in which you may be able to define the uses of these in our every day
Your answer should be of sufficient length to adequately address these criteria, meaning that your answer should be a brief paragraph for each item.
Geoscientist's use a combination of qualitative and quantitative properties to classify and categorize rocks and minerals. There are six qualitative properties that are used to identify rocks and minerals: Color, Lustre, Streak, Texture, Cleavage, and Hardness. A sample of rock that can be found in the
regions of the earth can indicate which rock layer is older than the other. Trilobite fossils
Minerals play an important role in our day-to-day life but we often not contemplate how the minerals are obtained. Minerals are scattered all over the world just like any other resources. Due to the natural processes of magma flow, hydrothermal gradients, sedimentation, and evaporation, Minerals are concentrated in various areas of the Earth’s crust. Obtaining these minerals for human use involves four general steps:
The Rock Cycle The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals.
Please discuss the following items in the order given. Briefly respond to all areas listed.
The first misconception, that all rocks are formed the same and are composed of the same materials was put to rest when we explained to students that sedimentary rocks are formed from by pressure and time and are made up of many types of materials such as mud, sand, pebbles, bones, etc. This became more concrete for the students when we had them create their own rock out of different sediments (starbust and sour patch kids). This also put to rest the other misconception that the streaks on the rock are just its color and nothing else. The students realized by applying pressure to the starburst and having it form into one that the streaks were the result of the different sediments forming
Crystalline silica may be of several distinct types. Quartz, a form of silica and the most common mineral in the earth's crust, is associated with many types of rock. Other types of silica include cristobalite and tridymite.
Rock strength can also add further categorisation to the Earths interior, bringing in the sphere layers: the mesosphere, asthenosphere, and lithosphere.
The field of geology has many different branches. Some of these areas have hardly anything in common. The one thing that they all include, though, is that each one concentrates on some part of the Earth, its makeup, or that of other planets. Mineralogy, the study of minerals above the Earth and in its crust, is different from Petrology, the st...
Igneous rocks are formed from the ejection of earth’s volcanoes. Deep down inside earth’s mantle there lies hot magma. Magma is molten rock that is kept below the surface. This mixture is usually made up of four parts: a hot liquid substance which is called the melt; minerals that have been crystallized by the melt; solid rocks that have made themselves tangled in the melt because of loose materials, and finally gases that have become liquid. Magma is created by an increase in temperatures, pressure change, and a alter in composition. When this magma is ejected from earth’s crust it earns a new name called lava. The lava hardens and becomes an Igneous rock.