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- Crystal_habit abstract "In mineralogy, crystal habit is the characteristic external shape of an individual crystal or crystal group. A single crystal's habit is a description of its general shape and its crystallographic forms, plus how well developed each are. Recognizing the habit may help in identifying a mineral. When the faces are well-developed due to uncrowded growth a crystal is called euhedral, one with partially developed faces is subhedral, and one with undeveloped crystal faces is called anhedral. The long axis of a euhedral quartz crystal typically has a six-sided prismatic habit with parallel opposite faces. Aggregates can be formed of individual crystals with euhedral to anhedral grains. The arrangement of crystals within the aggregate can be characteristic of certain minerals. For example, minerals used for asbestos insulation often grow in a fibrous habit, a mass of very fine fibers.The terms used by mineralogists to report crystal habits describe the typical appearance of an ideal mineral. Recognizing the habit can aid in identification as some habits are characteristic. Most minerals, however, do not display ideal habits due to conditions during crystallization. Euhedral crystals formed in uncrowded conditions with no adjacent crystal grains are not common; more often faces are poorly formed or unformed against adjacent grains and the mineral's habit may not be easily recognized.Factors influencing habit include: a combination of two or more crystal forms; trace impurities present during growth; crystal twinning and growth conditions (i.e., heat, pressure, space); and specific growth tendencies such as growth striations. Minerals belonging to the same crystal system do not necessarily exhibit the same habit. Some habits of a mineral are unique to its variety and locality: For example, while most sapphires form elongate barrel-shaped crystals, those found in Montana form stout tabular crystals. Ordinarily, the latter habit is seen only in ruby. Sapphire and ruby are both varieties of the same mineral; corundum.Some minerals may replace other existing minerals while preserving the original's habit: this process is called pseudomorphous replacement. A classic example is tiger's eye quartz, crocidolite asbestos replaced by silica. While quartz typically forms prismatic (elongate, prism-like) crystals, in tiger's eye the original fibrous habit of crocidolite is preserved.The names of crystal habits are derived from:Predominant crystal faces (prism – prismatic, pyramid – pyramidal and pinacoid – platy).Crystal forms (cubic, octahedral, dodecahedral).Aggregation of crystals or aggregates (fibrous, botryoidal, radiating, massive).Crystal appearance (foliated/lamellar (layered), dendritic, bladed, acicular, lenticular, tabular (tablet shaped)).".
- Crystal_habit thumbnail Pyrite_sun.jpg?width=300.
- Crystal_habit wikiPageID "219561".
- Crystal_habit wikiPageLength "10669".
- Crystal_habit wikiPageOutDegree "176".
- Crystal_habit wikiPageRevisionID "699901971".
- Crystal_habit wikiPageWikiLink Abnormal_grain_growth.
- Crystal_habit wikiPageWikiLink Acicular_(crystal_habit).
- Crystal_habit wikiPageWikiLink Actinolite.
- Crystal_habit wikiPageWikiLink Adamite.
- Crystal_habit wikiPageWikiLink Addiction.
- Crystal_habit wikiPageWikiLink Amygdule.
- Crystal_habit wikiPageWikiLink Aragonite.
- Crystal_habit wikiPageWikiLink Asbestos.
- Crystal_habit wikiPageWikiLink Asbestos_insulating_board.
- Crystal_habit wikiPageWikiLink Aurichalcite.
- Crystal_habit wikiPageWikiLink Azurite.
- Crystal_habit wikiPageWikiLink Baryte.
- Crystal_habit wikiPageWikiLink Beryl.
- Crystal_habit wikiPageWikiLink Biotite.
- Crystal_habit wikiPageWikiLink Bismuth.
- Crystal_habit wikiPageWikiLink Bornite.
- Crystal_habit wikiPageWikiLink Botryoidal.
- Crystal_habit wikiPageWikiLink Boulangerite.
- Crystal_habit wikiPageWikiLink C-axis.
- Crystal_habit wikiPageWikiLink Calcite.
- Crystal_habit wikiPageWikiLink Category:Crystallography.
- Crystal_habit wikiPageWikiLink Category:Mineral_habits.
- Crystal_habit wikiPageWikiLink Category:Mineralogy.
- Crystal_habit wikiPageWikiLink Cerussite.
- Crystal_habit wikiPageWikiLink Chalcedony.
- Crystal_habit wikiPageWikiLink Chrysoberyl.
- Crystal_habit wikiPageWikiLink Cinnabar.
- Crystal_habit wikiPageWikiLink Copper.
- Crystal_habit wikiPageWikiLink Corundum.
- Crystal_habit wikiPageWikiLink Crystal.
- Crystal_habit wikiPageWikiLink Crystal_structure.
- Crystal_habit wikiPageWikiLink Crystal_twinning.
- Crystal_habit wikiPageWikiLink Crystallization.
- Crystal_habit wikiPageWikiLink Cube.
- Crystal_habit wikiPageWikiLink Desert_rose_(crystal).
- Crystal_habit wikiPageWikiLink Diamond.
- Crystal_habit wikiPageWikiLink Druse_(geology).
- Crystal_habit wikiPageWikiLink Elbaite.
- Crystal_habit wikiPageWikiLink Euhedral_and_anhedral.
- Crystal_habit wikiPageWikiLink Feldspar.
- Crystal_habit wikiPageWikiLink Galena.
- Crystal_habit wikiPageWikiLink Garnet.
- Crystal_habit wikiPageWikiLink Geode.
- Crystal_habit wikiPageWikiLink Goethite.
- Crystal_habit wikiPageWikiLink Grain_growth.
- Crystal_habit wikiPageWikiLink Greenockite.
- Crystal_habit wikiPageWikiLink Gypsum.
- Crystal_habit wikiPageWikiLink Halite.
- Crystal_habit wikiPageWikiLink Hanksite.
- Crystal_habit wikiPageWikiLink Hematite.
- Crystal_habit wikiPageWikiLink Hemimorphite.
- Crystal_habit wikiPageWikiLink Heulandite.
- Crystal_habit wikiPageWikiLink Hexagon.
- Crystal_habit wikiPageWikiLink Hopper_crystal.
- Crystal_habit wikiPageWikiLink Kyanite.
- Crystal_habit wikiPageWikiLink Limonite.
- Crystal_habit wikiPageWikiLink List_of_Latin_phrases_(P).
- Crystal_habit wikiPageWikiLink Magnesite.
- Crystal_habit wikiPageWikiLink Magnetite.
- Crystal_habit wikiPageWikiLink Malachite.
- Crystal_habit wikiPageWikiLink Manganese.
- Crystal_habit wikiPageWikiLink Marcasite.
- Crystal_habit wikiPageWikiLink Mica.
- Crystal_habit wikiPageWikiLink Mineral.
- Crystal_habit wikiPageWikiLink Mineralogy.
- Crystal_habit wikiPageWikiLink Montana.
- Crystal_habit wikiPageWikiLink Mottramite.
- Crystal_habit wikiPageWikiLink Muscovite.
- Crystal_habit wikiPageWikiLink Natrolite.
- Crystal_habit wikiPageWikiLink Octahedron.
- Crystal_habit wikiPageWikiLink Olivine.
- Crystal_habit wikiPageWikiLink Plagioclase.
- Crystal_habit wikiPageWikiLink Pseudomorph.
- Crystal_habit wikiPageWikiLink Pyrite.
- Crystal_habit wikiPageWikiLink Pyrolusite.
- Crystal_habit wikiPageWikiLink Pyrophyllite.
- Crystal_habit wikiPageWikiLink Quartz.
- Crystal_habit wikiPageWikiLink Realgar.
- Crystal_habit wikiPageWikiLink Rhombic_dodecahedron.
- Crystal_habit wikiPageWikiLink Riebeckite.
- Crystal_habit wikiPageWikiLink Romanèchite.
- Crystal_habit wikiPageWikiLink Ruby.
- Crystal_habit wikiPageWikiLink Rutile.
- Crystal_habit wikiPageWikiLink Sapphire.
- Crystal_habit wikiPageWikiLink Scheelite.
- Crystal_habit wikiPageWikiLink Selenite_(mineral).
- Crystal_habit wikiPageWikiLink Serpentine_subgroup.
- Crystal_habit wikiPageWikiLink Silicon_dioxide.
- Crystal_habit wikiPageWikiLink Smithsonite.
- Crystal_habit wikiPageWikiLink Sphalerite.
- Crystal_habit wikiPageWikiLink Spinel.
- Crystal_habit wikiPageWikiLink Staurolite.
- Crystal_habit wikiPageWikiLink Stilbite.
- Crystal_habit wikiPageWikiLink Striation_(geology).