Rocks
About this set
Created by:
jscantl on May 13, 2010
Subjects:
rocks, Igneous Rocks, Metamorphic Rocks, sedimentary rocks
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34 terms
Terms | Definitions |
|---|---|
 Phenocrysts | rock with large crystals, embedded in a fine-grained matrix |
| Granite | Intrusive Igenous Granitic/Felsic, Coarse-Grained. |
| Porphyritic | describing an igneous rock composed of both large and small crystals |
| Rhyolite | Extrusive Igenous Granitic/Felsic, Fine Grained |
| Diorite | Intrusive Igneous Andesitic/Intermediate, Coarse Grained, Hornblend |
| Andesite | Intrusive Igneous Andesitic/Intermediate, Fine Grained |
| Gabbro | Intrusive Igenous Basaltic/Mafic, Coarse Grained |
| Basalt | Intrusive Igenous Basaltic/Mafic, Fine Grained |
| Peridotite | Ultramafic Igenous, Coarse Grained |
| Komatiite | Ultramafic Igenous, Fine Grained. Very Rare. |
| Obsidian | Igenous, Compact Glass, Glassy Texture, Black |
| Pumice | Igenous, Frothy Glass, Glassy Texture, White to Gray, Lightweight, Numerous Vesicles |
| Slate | Foliated Metamorphic, Very Fine Grained. Parent Rock: Shale, Mudstone, Siltstone |
| Phyllite | Foliated Metamorphic, Fine Grained. Glossy Sheen. Parent Rock: Slate |
| Schist | Foliated Metamorphic, Medium to Coarse Grained. Scaly Foliation. Parent Rock: Phyllite |
| Gneiss | Foliated Metamorphic, Medium to Coarse Grained. Parent Rock: Schist, Granite, or Volcanic Rocks |
| Marble | Nonfoliated Metamorphic, Medium to Coarse Grained. Parent Rock: Limestone or Dolostone |
| Quartzite | Nonfoliated Metamorphic, Medium to Coarse Grained. Parent Rock: Quartz Sandstone |
| Anthracite Coal | Nonfoliated Metamorphic, Fine Grained. Shiny black organic rock. Parent Rock: Bituminous Coal |
| Breccia | Detrital Sedimentary, Coarse/Gravel angular particles |
| Conglomerate | Detrital Sedimentary, Coarse/Gravel rounded particles |
| Sandstone | Detrital Sedimentary, Medium Particle Size, sand size |
| Siltstone | Detrital Sedimentary, Fine Particles, from mud |
| Shale | Detrital Sedimentary, Very Fine Particles, from mud |
| Crystalline Limestone | Chemical Sedimentary, Fine to Coarse Texture, from calcite |
| Travertine | Chemical Sedimentary, Fine to Coarse Texture, from calcite |
| Coquina Limestone | Chemical Sedimentary, Visible Shell Fragments, from calcite |
| Fossiliferous Limestone | Chemical Sedimentary, Various Size Shell Gragments, plant fossils, from calcite |
| Chalk | Chemical Sedimentary, microscopic shell fragments and clay, biochemical limestone |
| Chert | Chemical Sedimentary, Very Fine Crystalline, Light Colored, from quartz |
| Flint | Chemical Sedimentary, Very Fine Crystalline, Dark Colored, from quartz |
| Rock Gypsum | Chemical Sedimentary, Fine to Coarse Grained, Gypsum evaporate |
| Rock Salt | Chemical Sedimentary, Fine to Coarse Grained, Halite evaporate |
| Bituminous Coal | Chemical Sedimentary, Fine Grained, organic matter, altered plant fragments |
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