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[dreiche2]

Maybe this thread should be linked from the wiki...

[RP]

quote:Originally posted by Balistora:
<STRONG>maybe we should stop with the puns...their getting a little lame now</STRONG>

Losing your apatite for them?

[Kagus]

quote:Originally posted by RP:
<STRONG>

Losing your apatite for them?</STRONG>

COOOOOOAAAAAL!!!

[McDoomhammer]

At least stop with the puns until tomorrow.  S'late.

[Shakes]

quote:Originally posted by McDoomhammer:
<STRONG>At least stop with the puns until tomorrow.  S'late.</STRONG>

And when you go to bed don't forget to turn o'Phyllite.

[Caz]

Aahahahaha... oh Gods, this thread is legendary.

[Danaru]

These puns make me want to Up-Chalk my lunch. Stop before I Diorite?

[Citizen of Erl]

This thread is the best thread.

Someone should take it upon themselves to define the technical terms, though, so us thickies don't have to run to the dictionary every couple of minutes.

[Languidiir]

quote:Originally posted by Danaru:
<STRONG>These puns make me want to Up-Chalk my lunch. Stop before I Diorite?</STRONG>

That wasn't even good by pun standards!

Anyway, this thread rocks.
I hope there's an update slated for tomorrow.
Chalk one up for the pinned threads.
Pure gold, this thread is.

[PTTG??]

It's finals week, guys. I'll get back to this on Friday. Ruby careful with those puns!

[PTTG??]

It's back!

TETRAHEDRITE
   

Tetrahedrite gets its name from the distinctive tetrahedron shaped cubic crystals. The mineral usually occurs in massive form, it is a steel grey to black metallic mineral with Mohs hardness of 3.5 to 4 and specific gravity of 4.6 to 5.2.
It occurs in low to moderate temperature hydrothermal veins and in some contact metamorphic deposits. It is a minor ore of copper and associated metals. It was first described in 1845 for occurrences in Freiberg, Saxony, Germany.

GYPSUM
   
Gypsum is a common mineral, with thick and extensive evaporite beds in association with sedimentary rocks. Deposits are known to occur in strata from as early as the Permian age.[3] Gypsum is deposited in lake and sea water, as well as in hot springs, from volcanic vapors, and sulfate solutions in veins. Hydrothermal anhydrite in veins is commonly hydrated to gypsum by groundwater in near surface exposures. It is often associated with the minerals halite and sulfur.

TALC
   

Talc (derived from the Persian via Arabic talq) is a mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2. In loose form, it is the widely used substance known as talcum powder. It occurs as foliated to fibrous masses, its monoclinic crystals being so rare as to be almost unknown. It has a perfect basal cleavage, and the folia are non-elastic, although slightly flexible. It is sectile and very soft, with a hardness of 1 (Talc is the softest of the Mohs' scale of mineral hardness, and can be easily scratched by a fingernail). It has a specific gravity of 2.5–2.8, a clear or dusty luster, and is translucent to opaque. Its colour ranges from white to grey or green and it has a distinctly greasy feel. Its streak is white.

JET: See Lignite (yes, technically, they are the same. Jet is merely highter quality)

PUDDINGSTONE: See Conglomerate.

PETRIFIED WOOD:
   

Petrified wood is a type of fossil: it consists of fossil wood where all the organic materials have been replaced with minerals (most often a silicate, such as quartz), while retaining the original structure of the wood. The petrifaction process occurs underground, when wood becomes buried under sediment and is initially preserved due to a lack of oxygen. Mineral-rich water flowing through the sediment deposits minerals in the plant's cells and as the plant's lignin and cellulose decay away, a stone mould forms in its place.
Elements such as manganese, iron and copper in the water/mud during the petrification process give petrified wood a variety of color ranges. Pure quartz crystals are colorless, but when contaminants are added to the process the crystals take on a yellow, red or other tint.

GRAPHITE
   
The mineral graphite, as with diamond, is a form of carbon. It was named by Abraham Gottlob Werner in 1789 from the Greek γραφειν (graphein): "to draw/write", for its use in pencils, where it is commonly called lead, as distinguished from the actual metallic element lead. Unlike diamond, graphite is an electrical conductor, and can be used, for instance, in the electrodes of an arc lamp. Graphite holds the distinction of being the most stable form of carbon under standard conditions. Therefore, it is used in thermochemistry as the standard state for defining the heat of formation of carbon compounds. Graphite may be considered the highest grade of coal, just above anthracite and alternatively called meta-anthracite, although it is not normally used as fuel because it is hard to ignite.

BRIMSTONE


At room temperature, sulfur is a soft bright yellow solid. Elemental sulfur has only a faint odor, similar to that of matches. The odor associated with rotten eggs is due to hydrogen sulfide (H2S) and organic sulfur compounds rather than elemental sulfur. Sulfur burns with a blue flame that emits sulfur dioxide, notable for its peculiar suffocating odor.

KIMBERLITE

is a type of igneous rock best known for sometimes containing diamonds. It is named after the town of Kimberley in South Africa, where the discovery of an 83.5 carat diamond in 1871 spawned a diamond rush.

Kimberlite occurs in the Earth's crust in vertical structures known as kimberlite pipes. Kimberlite pipes are the most important source of mined diamonds today. The general consensus reached on kimberlites is that they are formed deep within the mantle, at between 150 and 450 kilometres depth, from anomalously enriched exotic mantle compositions, and are erupted rapidly and violently, often with considerable carbon dioxide and other volatile components. It is this depth of melting and generation which makes kimberlites prone to hosting diamond xenocrysts.

[ May 03, 2008: Message edited by: PTTG?? ]

[Shanba]

quote:Originally posted by McDoomhammer:
<STRONG>At least stop with the puns until tomorrow.  S'late.</STRONG>

This one is slighty iron-ic.

<.<

>.>

[PTTG??]

BISMUTHINITE
   

Bismuthinite is a mineral consisting of bismuth sulfide (Bi2S3). It is an important ore for bismuth. The crystals are steel-grey to off-white with a metallic luster. It is soft enough to be scratched with a fingernail and rather dense.
Bismuthinite forms a series with the lead, copper, bismuth mineral aikinite

REALGAR
   

Realgar, α-As4S4, is an arsenic sulfide mineral. It is a soft, sectile mineral occurring in monoclinic crystals, or in granular, compact, or powdery form, often in association with the related mineral, orpiment (As2S3). It is orange-red in colour, melts at 320 °C, and burns with a bluish flame releasing fumes of arsenic and sulfur. Realgar is soft with a Mohs hardness of 1.5 to 2 and has a specific gravity of 3.5. Its molecular weight is 106.99. Its streak is orange colored. Realgar has a sub-metallic luster. Hmm... make a stockpile of Reakgar near your entrance, pout magma on it when the Goblins come...

ORPIMENT
   
Orpiment is an orange to yellow mineral that is found worldwide, and occurs as a sublimation product in volcanic fumaroles, low temperature hydrothermal veins, hot springs and as a byproduct of the decay of another arsenic mineral, realgar. It is often found in association with realgar. It takes its name from the Latin auripigmentum (aurum − gold + pigmentum − pigment) because of its deep yellow color.

STIBNITE
   
Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb2S3. It forms grey orthorhombic crystals of hardness 2. It is the most important source for the rare metaloid antimony. Antimony (pronounced /ˈæntɪmoʊni/ (US), /ˈæntɪməni/ (UK)) is a chemical element with the symbol Sb (Latin: stibium, meaning "mark") and atomic number 51. A metalloid, antimony has four allotropic forms. The stable form of antimony is a blue-white metalloid. Yellow and black antimony are unstable non-metals. Antimony is used in flame-proofing, paints, ceramics, enamels, a wide variety of alloys, electronics, and rubber.

MARCASITE
   
The mineral marcasite, sometimes called white iron pyrite, is iron sulfide (FeS2). Marcasite is often mistakenly confused with pyrite, but marcasite is lighter and more brittle. Specimens of marcasite often crumble and break up due to the unstable crystal structure, and it is this crystal structure that is the main difference between marcasite and pyrite. Though marcasite has the same chemical formula as pyrite, it crystallizes in a different crystal system, thereby making it a separate mineral. In jewelry, pyrite used as a gem is improperly termed "marcasite". True marcasite is never used as a gem, due to its brittle and chemically unstable structure.

SYLVITE
   
Sylvite is potassium chloride (KCl) in natural mineral form. It forms crystals in the isometric system very similar to normal rock salt, halite (NaCl). (The two are, in fact, isomorphous. [3] Sylvite is colorless to white with shades of yellow and red due to inclusions. It has a Mohs hardness of 2.5 and a specific gravity of 1.99. It has a refractive index of n=1.490) [4]. Sylvite has a salty taste with a distinct bitterness. (What?)
Sylvite is one of the last evaporite minerals to precipitate out of solution. As such, it is only found in very dry saline areas. Its principal use is as a potassium fertilizer.

CRYOLITE
   
Cryolite (Na3AlF6, sodium hexafluoroaluminate) is an uncommon mineral of very limited natural distribution. It is mostly identified with the once large deposit at Ivigtût on the west coast of Greenland, which ran out in 1987.

It was historically used as an ore of aluminium and later in the electrolytic processing of the aluminium rich oxide ore bauxite (itself a combination of aluminium oxide minerals such as gibbsite, boehmite and diaspore). The difficulty of separating aluminium from oxygen in the oxide ores was overcome by the use of cryolite as a flux to dissolve the oxide mineral(s). Cryolite itself melts below 900°C (1173 Kelvin) and can dissolve aluminium oxides sufficiently well to allow easy extraction of the aluminium by electrolysis. Considerable energy is still required for both heating the materials and the electrolysis, but it is much more energy-efficient than melting the oxides themselves. Now, as natural cryolite is too rare to be used for this purpose, synthetic sodium aluminium fluoride is produced from the common mineral fluorite for this purpose.

PERICLASE
   
Periclase occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks. It is a cubic form of magnesium oxide (MgO).

The old term for the mineral is magnesia. Stones from the Magnesia region in ancient Anatolia contained both magnesium oxide and hydrated magnesium carbonate as well as iron oxides (such as magnetite). Thus these stones, called Stones from Magnesia in antiquity, with their unusual magnetic properties were the reason the terms magnet and magnetism were coined. Periclase is usually found in marble and pure periclase is colorless.

28 more minerals left. Then, mebby I'll explain the dirt types.

[ May 03, 2008: Message edited by: PTTG?? ]

[Kagus]

Wow, that stibnite crystal is awesome.

[Lyrax]

Learning all about our Dwarf Fortress rocks!

But this thread about the rocks is good, too.