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gptkbp:instance_of
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gptkb:item
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gptkbp:consists_of
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gptkb:concert_tour
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https://www.w3.org/2000/01/rdf-schema#label
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Tourmaline group
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gptkbp:ingredients
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(Na, Ca)(Li, Mg, Fe, Mn, Al)3 Al6(B O3)3 Si6 O18(OH)4
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gptkbp:is_associated_with
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gptkb:Ferengi
gptkb:item
muscovite
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gptkbp:is_characterized_by
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complex boron silicate structure
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gptkbp:is_found_in
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gptkb:Brazil
gptkb:China
gptkb:Pakistan
gptkb:Politician
gptkb:USA
gptkb:Sri_Lanka
gptkb:Madagascar
igneous rocks
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gptkbp:is_known_for
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pleochroism
piezoelectric properties
pyroelectric properties
|
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gptkbp:is_often_depicted_as
|
gptkb:item
metamorphic rocks
pegmatite
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gptkbp:is_part_of
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natural history
silicate minerals
mineral collection
gemstone market
|
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gptkbp:is_studied_in
|
gptkb:item
geology
petrology
gemology
|
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gptkbp:is_used_in
|
gptkb:beer
gptkb:hospital
gptkb:item
optical devices
industrial applications
|
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gptkbp:is_valued_for
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transparency
durability
hardness
rarity
color variety
|
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gptkbp:varieties
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gptkb:elbaite
gptkb:indicolite
gptkb:rubellite
schorl
dravite
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gptkbp:bfsParent
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gptkb:Rubellite
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gptkbp:bfsLayer
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4
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