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Geology - Marcador
Geology - Detalles
Niveles:
Preguntas:
55 preguntas
| 🇬🇧 | 🇬🇧 |
| Colorless to silverish-grey:cellophane like, thin elastic sheets, translucent to transparent | Muscovite |
| Deep "azure blue" color, streak blue, often encrusting habit;sometimes smooth irregular masses | Azurite |
| Salmon pink color cream, 2 cleavages at nearly 90', often has crooked shallow lines on flat surfaces | Orthoclase |
| Olive green to black color, appears "sugary", small, translucent grains,which fall off, bo streak | Olivine |
| Texture is Phaneritic light pink orange color | Granite (Felsic) |
| Texture is Phaneritic white black specks | Diorite (intermediate) |
| Dark color, texture is Phaneritic | Gabbro (mafic) |
| Texture Aphanitic greyish pink | Rhyolite (felsic) |
| Texture Aphanitic , greyish silivercolor | Basalt (Mafic) |
| Brownish color texture Porphyritic | Andesite Porphyry (Intermediate) |
| Texture Hyaline (glassy) Color black | Obsidian (all compsition) |
| Texture Vesicular color whitish brown | Pumice (Felsic) |
| Pinkish and dark greyish color texture Vesicular | Scoria (Intermediate/Mafic) |
| CaCO3, Cream, tan to brownish in color, dense, crystal microscopic, fizzes strongly with HCI | Fine grained limestone |
| (Ca,Mg)2CO3 Greyish-blue, interlocking crystals, fizzes with HCL only if scratched | Dolostone (Dolomite) |
| Fossils or imprints of fossil embedded in dense limestone. fizzes with HCL, dense, composed of CaCO3 | Fossiliferous Limestone |
| Medium grained micas visible - glitter to fish scale like. Breaks uneven and wavy surfaces | Mica Schist |
| Coarse grained;minerals have segregated into altering "layers" of light and darked colored bands | Gneisis |
| Very coarse; broken and flattened quartz pebbles, dense and hard (SiO) | Quartz Metaconglomerate |