Image: <bdi><a href="https://www.wikidata.org/wiki/Q108103612" class="extiw" title="d:Q108103612"><span title="Wikipedian and OpenStreetMap mapper from Cologne, Open Data activist">Raimond Spekking</span></a></bdi> (CC BY-SA 4.0)
triclinicuncommonSilicates
Kyanite
Al2SiO5
This image displays a cluster of elongated, bladed, deep blue kyanite crystals, characteristic of its typical habit.
Kyanite Physical Properties
Mohs Hardness
4.5Crystal System
triclinicLuster
vitreousStreak Color
whiteCleavage
perfect on {100}, good on {010}Fracture
splinterySpecific Gravity
3.6Colors
blue, white, gray, green, blackTransparency
transparentType Locality
Ticino, SwitzerlandMineral Group
SilicatesUses
refractory materials, ceramics, abrasives, gemstone, indicator mineralAssociated Minerals
quartz, feldspar, mica, garnet, stauroliteRarity
uncommonGeological Context
Kyanite is a metamorphic mineral typically found in high-pressure, low-to-moderate temperature regional metamorphic rocks like schists and gneisses, serving as an important index mineral for specific metamorphic conditions.
