pyroxene
Chain silicate mineral
Pyroxene is a group of rock-forming silicate minerals found in igneous and metamorphic rocks.
These minerals share a similar crystal structure and chemical composition, typically containing iron, magnesium, and calcium.
Pyroxenes are common in the Earth's crust and mantle, appearing in rocks like basalt and gabbro: The volcanic rock was rich in pyroxene and olivine.
Harder true jade mineral
- amphiboleDark inosilicate mineral group
- olivineGreen igneous rock mineral
- feldsparSilicate mineral group
- rock-formingConstituting geological masses
Harder true jade mineral
- kunzitePink-violet lithium silicate mineral
- cabochonDomed, unfaceted gemstone
- translucentPermitting diffused light passage
- greenColor of vegetation
jewelry · carved · polished · ornamental
Fine-grained volcanic stone
- gabbroDark intrusive igneous rock
- andesiteIntermediate volcanic rock
- magmaMolten rock underground
- lavaErupted liquid stone
intrusive · extrusive · plutonic · volcanic · diabase · cumulate · crystallization · fractionation
Tendency to split cleanly
- prismaticLight-dispersing, multicolored
- lusterSoft reflected light
- hardnessResistance to penetration
- twinningForming identical pairs
habit · crystalline · lattice · symmetry · inclusion · facet · vitreous · translucent
Metamorphosed mafic rock
- faciesDiagnostic facial appearance
- pressureForce upon contact
- temperatureMeasured heat intensity
- progradeSame direction as primary
retrograde · corona · subduction · high-grade
jadeite
Harder true jade mineral
- amphiboleDark inosilicate mineral group
- olivineGreen igneous rock mineral
- feldsparSilicate mineral group
rock-forming · calcium · magnesium · iron · silicate
jadeite
Harder true jade mineral
- kunzitePink-violet lithium silicate mineral
- cabochonDomed, unfaceted gemstone
- translucentPermitting diffused light passage
green · jewelry · carved · polished · ornamental
basalt
Fine-grained volcanic stone
lava · intrusive · extrusive · plutonic · volcanic · diabase · cumulate · crystallization · fractionation · xenolith
cleavage
Tendency to split cleanly
twinning · habit · crystalline · lattice · symmetry · inclusion · facet · vitreous · translucent · morphology
amphibolite
Metamorphosed mafic rock
- faciesDiagnostic facial appearance
- pressureForce upon contact
- temperatureMeasured heat intensity
prograde · retrograde · corona · subduction · high-grade