Constituent
- Name
- Pyroxene
- IMA name
- Pyroxene group
- Class
- silicate mineral
- Compound type
- inosilicate
- Relevance
- main - major
- Arrangement
- in multi-phases
- Formula
- AB.[(Si,Al)O3]2 where A=Ca,Na,Fe2+ and/or Mg and sometimes Zn,Mn2+,Li and B=Al,Fe3+,Mg,Mn3+,Cr,Sc,Ti,V3+ and/or Fe2+
- Chemical formula
- (Ca,Na,Fe2+,Mg,Zn,Mn2+,Li)(Al,Fe3+,Mg,Mn3+,Cr,Ti,Sc,V3+,Fe2+)(Si,Al)2O6
- Elemental formula
- (Ca)0-1 (Na)0-1 (Mg)0-2 (Fe2+)0-2 (Fe3+)0-1 (Mn2+)0-1 (Mn3+)0-1 (Al)0-1 (Zn)0-1 (Li)0-1 (Cr3+)0-1 (Ti)0-0.5 (V3+)0-1 (Sc)0-1 (Si)1-2 O6
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula CaO Na2O MgO FeO Fe2O3 MnO Mn2O3 Al2O3 ZnO Li2O Cr2O3 TiO2 V2O3 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
- Molar mass
- 186.09 - 248.09 g/mol
- Density
- 3.1-4.07 g/cm3
- Refringence type
- biaxial
- Refringence sign
- positive or negative
- Color
- various
- Diaphaneity
- various
- Luster
- various