Constituent
- Name
- Clinopyroxenes
- IMA name
- Clinopyroxenes subgroup
- Class
- silicate mineral
- Compound type
- inosilicate
- Relevance
- impurity
- Arrangement
- coated core
- Mass fraction
- 0.00044 $\pm$ 0.0004
- Abundance comments
- Mostly Augite - Mass fraction uncertain (0.044 for < 2µm size - Vogt 2002)
- Formula
- $AB.[SiO_3]_2$ with $A = Na, Ca, Fe^{2+}, Mn^{2+}$ and/or $Mg$, and $B = Fe^{2+}, Mn^{2+}, Mg, Al, Zn, Ti, Cr, V$ 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 $Na_{2}O$ $CaO$ $FeO$ $MnO$ $MgO$ $Fe_{2}O_{3}$ $Al_{2}O_{3}$ $ZnO$ $TiO_{2}$ $Cr_{2}O_{3}$ $V_{2}O_{5}$ $Sc_{2}O_{3}$ $SiO_{2}$ 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