Statements (48)
Predicate | Object |
---|---|
gptkbp:instanceOf |
mineral
|
gptkbp:associatedWith |
quartz
sillimanite andalusite |
gptkbp:awards |
vitreous to pearly
|
gptkbp:challenges |
4.5 to 7
|
gptkbp:chemicalFormula |
Al2SiO5
|
gptkbp:climate |
stable up to 1500 °C
|
gptkbp:colors |
black
blue green |
gptkbp:displacement |
conchoidal to uneven
|
gptkbp:environmentalImpact |
high
poor minimal when mined responsibly |
https://www.w3.org/2000/01/rdf-schema#label |
kyanite
|
gptkbp:locatedIn |
gptkb:Australia
gptkb:Brazil gptkb:China gptkb:India gptkb:Nepal gptkb:North_Carolina gptkb:Tanzania gptkb:United_States gptkb:Virginia gptkb:Alaska |
gptkbp:market |
varies by quality
can be high for gem-quality stones |
gptkbp:notableTracks |
Bokota Mine
Bokota_Mine,_Madagascar Kyanite_Mining_Corporation Kyanite_deposit,_Brazil Kyanite_deposit,_India |
gptkbp:occursAnnually |
gneiss
schist metamorphic rocks |
gptkbp:productionCompany |
quarrying
open-pit mining underground mining |
gptkbp:rootSystem |
triclinic
|
gptkbp:surface |
3.56 to 3.67
|
gptkbp:sustainability |
recyclable in some applications
|
gptkbp:team |
perfect in one direction
|
gptkbp:uses |
in ceramics
in electronics as a gemstone as a refractory material |
gptkbp:visibility |
transparent to opaque
|