Constituent
- Name
- pyroxene
- IMA name
- Clinopyroxenes subgroup
- Class
- silicate mineral
- Compound type
- inosilicate
- Relevance
- main - major
- Arrangement
- single phase
- Mass fraction
- 1.0
- Formula
- AB.[SiO3]2 with A=Na,Ca,Fe2+,Mn2+ and/or Mg, and B=Fe2+,Mn2+,Mg,Al,Zn,Ti,Cr,V and/or Sc)
- Chemical formula
- (Na,Ca,Fe2+,Mn2+,Mg)(Fe2+,Mn2+,Mg,Al,Zn,Ti,Cr,V,Sc)Si2O6
- Elemental formula
- (Na)0-1 (Ca)0-1 (Fe2+)0-1 (Mn2+)0-0.5 (Mg)0-1 (Al)0-1 (Zn)0-1 (Ti)0-1 (Cr)0-1 (V)0-1 (Sc)0-1 Si2 O6
- Isotope mixture type
- terrestrial abundance
- Composition comments
- Common impurities: $K, Co, Ni
- Oxides
-
Formula Na2O CaO FeO MnO MgO Fe2O3 Al2O3 ZnO TiO2 Cr2O3 V2O5 Sc2O3 SiO2 Mass fraction (%)
Strunz
- Class
- silicates (09)
- Division
- inosilicate (09.D)
- Family
- with 2-periodic single chains, Si2O6; pyroxene family (09.DA)
Dana
- Major class
- silicates (VIII)
- Class
- inosilicate single-width unbranched chains, w=1 (65)
- Type
- with chains P=2 (65.01)
- Group
- N/A (N/A)
- Phase type
- crystalline
- Crystal system
- various
- Crystal class
- various
- Crystal class symbol
- various
- Crystal spacegroup
- various
- Refringence type
- various
- Refringence sign
- positive or negative
- Color
- various
- Diaphaneity
- transparent to opaque
- Luster
- various