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- Geology (12007 bytes)
1: '''Geology''' (from [[Greek language|Greek]] γη- (''ge-''...
3: ...ude minerals such as [[asbestos]], [[perlite]], [[mica]], [[phosphates]], [[zeolites]], [[clay]], [[pumi...
10: ...gical [[stratum]] in a mountain hundreds of miles from the ocean, he inferred that the land was formed...
12: ...her languages of Europe such as [[French language|French]]. [[Georg Bauer]] (Georg Agricola), a physic...
16: ... the [[Volcano|volcanic]] origins of this part of France. [[James Hutton]] recorded his ''Theory of th... - Igneous rock (11419 bytes)
3: ... (geology)|crust]]. The word "igneous" is derived from the [[Latin]] ''ignis'', meaning "fire".
8: ...ation of igneous rocks. This is because the magma from which the minerals crystallize is rich in only ...
14: ... information about the composition of the mantle, from where some igneous rocks are extracted, and the...
15: * their absolute ages can be obtained from various forms of [[radiometric dating]] and thu...
20: ...fied according to mode of occurrence, texture, chemical composition, and the geometry of the igneous bod... - Desert (21206 bytes)
18: ...ey should be designated as specifically different from the simple definition of a desert: a place whe...
20: ...s an [[ice cap]] if the temperature remains below freezing year-round, rendering the land almost compl...
22: ... other areas are arid by virtue of being very far from the nearest available sources of moisture (this...
28: ...orld's largest desert, the [[Sahara]] of [[North Africa]], which has experienced temperatures as high ...
32: ... These deserts are in interior [[watershed]]s far from oceans and have a wide range of annual temperat... - Slate (1151 bytes)
5: ...otite]], [[chlorite]], and [[hematite]], or, less frequently, [[apatite]], [[graphite]], [[kaolin]], [...
7: Some of the finest slates in the world come from [[Portugal]], [[Wales]] in the [[United Kingdom... - List of minerals (11610 bytes)
88: #[[Burmite]] (amber from Burma)
188: #[[Franckeite]]
189: #[[Franklinite]] (spinel group)
297: #[[Mica]] (a group of silicate minerals)
516: #[[Wolframite]] - Capacitor (29664 bytes)
9: [[Image:Dielectric.png|frame|The electrons in the molecules shift toward th...
14: :<math>C = \frac{Q}{V}</math>
32: :<math>i(t) = C \frac{dv(t)}{dt}</math>
34: The [[impedance]] in [[frequency domain]] can be written as
36: :<math>Z = \frac{1}{j \omega C} = - j X_C </math> - Metamorphic rock (7141 bytes)
1: ... and pressure causing profound physical and/or chemical change. The protolith may be [[sedimentary rock]...
3: ...)|crust]] and are classified by texture and by chemical and [[mineral]] assembly ([[metamorphic facies]]...
12: ...high temperatures and pressures and may remain chemically unchanged during the metamorphic process. Howe...
18: ... platy or elongated crystals of minerals, such as mica and [[chlorite]], to grow with their long axes pe...
22: Rocks that were subjected to uniform pressure from all sides, or those which lack minerals with di... - Graphite (4209 bytes)
11: |[[Chemical formula]]|| [[Carbon]], C
23: | [[Fracture]]|| Flaky, otherwise rough when not on clev...
29: | [[Refractive index]]|| Opaque
44: ...''' (named by Abraham Gottlob Werner in [[1789]], from the [[Greek language|Greek]] γρα...
48: ...ated minerals include: [[quartz]], [[calcite]], [[mica]]s, [[iron]] [[meteorite]]s and [[tourmaline]]s. ... - Silicon (13233 bytes)
44: ...metalloid]], silicon is less reactive than its chemical analog [[carbon]]. It is the second most abundan...
47: ...-efficient of [[resistance]], since the number of free charge carriers increases with temperature.
50: ...] and [[animal]] life. [[Diatom]]s extract silica from water to build their protective cell walls. Oth...
51: ...[Pottery]]/[[Vitreous enamel|Enamel]] - It is a refractory material used in high-temperature material ...
54: *[[Glass]] - Silica from sand is a principal component of glass. Glass c... - Schist (1749 bytes)
3: ... preponderance of lamellar [[mineral]]s such as [[mica]]s, [[Chlorite group|chlorite]], [[talc]], [[horn...
7: [[Image:Schist.jpg|left|thumb|Manhattan Schist, from Southeastern New York]]
9: ...ch as [[basalt]]s and [[tuff]]s. Most schists are mica schists, but [[graphite]] and [[chlorite]] schist...
13: The word schist is derived from the [[Greek language|Greek]] meaning "to split"... - Mineral (10947 bytes)
1: ...s]]. Minerals range in composition from pure [[Chemical element|element]]s and simple [[salt]]s to very ...
3: [[Image:minerals.jpg|right|frame|Photo from [http://volcanoes.usgs.gov/Products/Pglossary/m...
7: ...lase]] [[feldspar]]s comprise a continuous series from [[sodium]]-rich [[albite]] (NaAlSi<sub>3</sub>O...
11: ... [[lead]] and [[sulfur]]) and [[periclase]] (made from [[magnesium]] and [[oxygen]]) all share the sam...
19: ...occurring, inorganic substance with a definite chemical composition and a crystalline structure. A [[Roc...
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