You Searched For: Igneous+Rocks
40 results were found
Anorthite
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Anorthite CaAl2Si2O8(An90-100) (Feldspar Group) (see also Plagioclase) Crystallography:
Triclinic; 1. Crystals usually prismatic parallel to c-axis; twinning as in albite. Commonly massive, cleavable, with gra...
Augite
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Augite (Ca,Na) (Mg,Fe,Al,Ti) (Si,Al)2 O6 (Pyroxene Group) Crystallography:
Monoclinic; 2/m. Commonly prismatic crystals with rectangular cross-sections, or in granular crystalline masses.
Physical Properties: ...
Biotite
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Biotite K (Mg, Fe+2)3 (Al, Fe+3) Si3 O10 (OH,F)2 (Mica Group) Crystallography: Monoclinic; 2/m. Usually in irregular foliated masses, and rarely in tabular or short prismatic crystals. Physical Properties:
Cle...
Anothoclase
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Anorthoclase (Na, K) AlSi3 O8 (Feldspar Group) Crystallography:
Triclinic; 1. Twinning common. Physical Properties:
Cleavage: Principle cleavage at right angles or very close to 90°. Fracture uneven; brittle. ...
Gneiss
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Gneiss Type:
Metamorphic; regional. Texture/Appearance:
Foliated, often with distinct banding (segregation) of minerals; some preferred orientation in micas (platy) or hornblende (prismatic crystals). Medium t...
Graywacke
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Graywacke Type:
Sedimentary; clastic. Texture/Appearance:
Generally coarse-grained with angular to sub-angular, poorly sorted grains in a clayey matrix. May show graded bedding; fossils are rare.
Color: Gray to greenish-gr...
Necturus (Mud Puppy)
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Conditions for Customer Ownership We hold permits allowing us to transport these organisms. To access permit conditions, click here. Never purchase living specimens without having a disposition strategy in place. An end-user permit is required in ...
Serpentinite
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Serpentinite Type:
Metamorphic; regional. Texture/Appearance:
Fine to coarse-grained, lamellar or mesh-like; massive with frequent zonations and veins.
Color: Dark green to black.
Mineralogy/Chemistry: Ultramafic; composed...
Shale
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Shale Type:
Sedimentary; clastic. Texture/Appearance:
Very fine-grained (clay to silt-sized particles) grains not distinguishable to the naked eye. A relatively soft rock with fine laminae; may display carbona...
Dolostone
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Dolostone Type:
Sedimentary, chemical. Texture/Appearance:
Fine to coarsely crystalline grain size; sugary (saccharoidal). May contain various fossil relicts, molds, and casts. Stratification absent or irregular.
Color: Li...
AsianForestScorpion
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Asian Forest
Scorpion
Species: longimanus Genus: Heterometrus Family: Scorpionidae Order: Scorpiones Class: Arachnida Phylum: Arthropoda Kingd...
Apatite
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Apatite Ca5(PO4)3(F,Cl,OH) Crystallography:
Hexagonal; 6/m. Commonly occurs in crystals of long prismatic habit; also in mas- sive to compact masses.
Physical Properties: Cleavage: {0001} poor. Fracture concho...
Sandstone
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Sandstone Type:
Sedimentary; clastic. Texture/Appearance:
Grains generally sand-sized (1/16–2mm), normally sorted and somewhat rounded. May be poorly to well cemented. May also display visible fossils (not par...
Metaconglomerate
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Metaconglomerate Type:
Metamorphic, regional. Texture/Appearance:
Coarse-grained rock containing rounded to subangular clasts greater than 2mm in diameter and distributed in a fine-grained matrix or metamorphi...
BS Element of Month Carbon IA
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1
All About Elements: Carbon
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Fun Facts About… Carbon 1. Graphine, an allotrope of carbon, is the
strongest, thinnest, and best conductor of heat known to man. It was created by scientists using ordin...
Cinnabar
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Cinnabar HgS Crystallography:
Hexagonal-R; 32 (low temperature form). Crystals usually rhombohedral, often in penetration twins. Commonly fine granular, massive; also earthy.
Physical Properties: Cleavage: {10...
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