Property talk:P690

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space group
symmetry classification for 2 and 3 dimensional patterns or crystals

Description	Every crystal can be assigned to one of the 230 space groups - space group (Q899033).
Represents	space group (Q899033)
Data type	Item
Template parameter	de:Vorlage:Infobox_Mineral = Raumgruppe=
Domain	term (note: this should be moved to the property statements)
Allowed values	230 space groups - space group (Q899033) - en:Space_group#Table_of_space_groups_in_3_dimensions (note: this should be moved to the property statements)
Example	According to this template: sodium chloride => "Space group 225" (Fm3m) (230 space groups have to be created first), Aspirine => "space group 14" (P121/c1), albite =space group 2 According to statements in the property: sodium chloride (Q2314) → space group Fm-3m (Q15041893) albite (Q182264) → triclinic-pinacoidal (Q13365008) When possible, data should only be stored as statements
Source	Scientific literature (note: this information should be moved to a property statement; use property source website for the property (P1896))
Robot and gadget jobs	Add space group to every crystal from scientific databases
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P690 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 2,356 Main statement 2,349 99.7% of uses Qualifier 6 0.3% of uses Reference 1 <0.1% of uses
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Value type “space group (Q899033), space group Pc (Q102196561), space group P2/n (Q13365572), space group P2₁/n (Q13365573)”: This property should use items as value that contain property “subclass of (P279)”. On these, the value for subclass of (P279) should be an item that uses subclass of (P279) with value space group (Q899033), space group Pc (Q102196561), space group P2/n (Q13365572), space group P2₁/n (Q13365573) (or a subclass thereof). (Help)

List of violations of this constraint: Database reports/Constraint violations/P690#Value type Q899033, Q102196561, Q13365572, Q13365573, hourly updated report, SPARQL

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Q418215, Q43010, Q407913, Q419270, Q3844536, Q3814992, Q3808473, Q3719076, Q3570566, Q3438122, Q1796630, Q745864, Q422075, Q1070576, Q1070902, Q2598409, Q3665221, Q3853394, Q3853404, Q3855781, Q3867114, Q3880612, Q3976124, Q3983055, Q3997091, Q4006303, Q4006328, Q4017774, Q4017837, Q4018503, Q4018549, Q4018576, Q4019563, Q4019681, Q4019757, Q4019860, Q4020586, Q4023135, Q4023724, Q4023739, Q4024118, Q4024128, Q4024616, Q7902547, Q8072314, Q15925269, Q15962248
List of violations of this constraint: Database reports/Constraint violations/P690#Single value, SPARQL

Item “crystal system (P556)”: Items with this property should also have “crystal system (P556)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: fluor-uvite (Q1077246), wickmanite (Q4019673)
List of violations of this constraint: Database reports/Constraint violations/P690#Item P556, search, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P690#Scope, hourly updated report, SPARQL

Citation needed: the property must have at least one reference (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P690#citation needed

This property is being used by: ca:Plantilla:Infotaula de mineral, ca:Plantilla:Infotaula compost químic eu:Txantiloi:Mineral infotaula, eu:Txantiloi:Konposatu kimiko infotaula/probak, eu:Txantiloi:Konposatu kimiko infotaula uk:Шаблон:Мінерал ast:Plantía:Ficha de compuestu químicu ha:Template:Infobox chemical incubator:Template:Wp/shi/Infobox chemical kab:Talɣa:Infobox chemical shi:Talɣa:Infobox chemical ga:Teimpléad:WD Bosca Sonraí Comhdhúil Cheimiceach, ga:Teimpléad:WD Bosca Sonraí Mianra ff:Template:Infobox chemical gv:Clowan:WD Kishtey Fys Co-vunstoo Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)