Trinity River) 11. Serpentine Group: Metamorphic Texture: Non-Foliated Type: Orthoclase Collected: (Mammoth Bay River Bed) 12. Diorite Group: Igneous Texture: Phaneritic Type: Intermediate Collected: (Mammoth Bay, Near River) 13. Quartz Group: Igneous Chemical Formula: SiO2 Collected: (Mammoth Bay River) 14. Chert Group: Sedimentary Chemical Formula: SiO2 Collected: (Mammoth Bay Trail) 15. Sandstone Group: Sedimentary Texture: Fine Grain Type: Clastic Collected:
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CE332A Survey and Geology Camp Geology Report Submitted by: Aaditya Verma 11002 Group no. 1 Group Members: 1. 2. 3. 4. 5. Aaditya Verma Ajay Kumar Sattavan Amanpreet Singh Daksh Langan Prakhar Singh Karol 11002 11046 11075 11230 11540 Contents Introduction…………………………………………………………………….…Pg. 3 Objectives………………………………………………………………………… Pg. 8 Day wise schedule of activities and observations … … ………………...………Pg. 9 Major learnings from the camp…………………………………………………..Pg. 21 Introduction
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made up of. It is not hard to identify different types of sedimentary rocks. The sedimentary rock sandstone consists of sand size particles, usually of quartz and feels very gritty. Conglomerate is a mixture of finely-rounded pebbles (usually quartz) and tiny fragments of sand held tightly together. Shale is fashioned from tiny molecules of quartz and clay minerals under pressure. The type of sedimentary rock that is produced depends on how much pressure is on it and how much water is around the
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of new thing. This is the first time I have been to a geology museum. There are lots of interesting rocks, minerals, woods with different type and shape. I am interested in quartz and I really want to know more about it. I think there are varieties of quartz, and I found Amethyst in the museum. Amethyst is one kind of quartz with formula is SiO2. Its crystal class is Trapezohedral, and hardness in Mohs scale is 7. The best kind of Amethyst can be found in Brazil, Siberia, Sri Lanka and the far East
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Physical properties citrine rose quartz prasiolite 1. COLOR agate milky quartz amethyst smoky quartz jasper Physical properties The color of a mineral when it is powdered is called the streak of the mineral. Physical properties metallic adamantine glassy The luster of a mineral is the way its surface reflects light. pearly dull waxy Hardness-Mohs scale 1 talc 2 gypsum 3 calcite 4 fluorite 5 apatite 6 feldspar 7 quartz 8 topaz 9 corundum 10
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Sean Davis GE 254 8/12/13 The Rock Cycle The rock cycle is the natural transformation of rock over a period of time. Rocks are created and destroyed in cycles. The rock cycle is a model that describes the formation, breakdown, and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes. Rocks are made of minerals; which are naturally occurring, crystalline solid of definite chemical composition and a characteristic crystal structure. Rocks are any naturally formed
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CheckPoint: Metamorphic Rocks Metamorphism occurs when there is a mineralogical, textural, chemical, and structural change in rocks that happens when rocks are exposed to high temperatures and pressures. Metamorphic rocks originate from beneath the earth’s continental curst and above the earth’s mantel (Murck, Skinner, Mackenzie, 2008). This is where the per-exiting rocks are exposed to high temperature and pressure which spaces and forms them into metamorphic rocks. Formation of
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metamorphic rock classification schemes first separate the rocks into two textural categories; those that are layered (or foliated), and those that are not. foliated rocks are crudely layered like slate non-foliated rocks are more crystalline like quartz. Non-foliated metamorphic rocks do not have a platy or sheet-like structure. There are several ways that non-foliated rocks can be produced. Reference
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Austin Pope Lesson 17 Exercise 29 April 2015 1. What do the various kinds of rocks used for monuments tell us about weathering? There are three principal types of stone used in the structures, pedestals, and ornament of the many monuments that may be found throughout the parks system: granite, limestone, and marble. Granite, an igneous rock, is formed through the cooling and crystallization of molten bodies within the earth. It is dense and durable. Limestone is a sedimentary rock comprised
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insides were hollow, like a cave, and the walls were covered with glittering white quartz crystals or sparkling purple amethysts” (Walls 60). Not only can these rocks symbolize Jeannette’s own self, but in the same fashion, can be examined further and explained in more depth. The most compelling evidence when analyzed, is her choice for choosing quartz and amethyst in her description of the geode. Many people use quartz to protect and heal themselves and other people; the rock is said to absorb negative
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