augite

GPTKB entity

Statements (33)
Predicate Object
gptkbp:instanceOf granite
gptkbp:associatedMinerals gptkb:hornblende
olivine
plagioclase
gptkbp:category inosilicate
gptkbp:chemicalFormula (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
gptkbp:cleavage prismatic
gptkbp:color black
brown
dark green
gptkbp:crystalSystem monoclinic
gptkbp:diaphaneity translucent to opaque
gptkbp:discoveredIn 1792
gptkbp:event metamorphic rocks
igneous rocks
gptkbp:fracture uneven
gptkbp:habit massive
granular
short prismatic crystals
gptkbp:hardnessMohs 5.5–6
https://www.w3.org/2000/01/rdf-schema#label augite
gptkbp:IMA_symbol gptkb:Aug
gptkbp:luster vitreous
gptkbp:namedAfter Greek word for brightness
gptkbp:relatedGroup gptkb:pyroxene
gptkbp:specificGravity 3.19–3.56
gptkbp:streak greenish-white
gptkbp:tenacity brittle
gptkbp:transparency translucent to opaque
gptkbp:uses rock-forming mineral
gptkbp:bfsParent gptkb:Diopside
gptkb:pyroxene
gptkbp:bfsLayer 6