Constituent
- Name
- Olivine
- IMA name
- Olivine group
- Class
- silicate mineral
- Compound type
- nesosilicate
- Comments
- Altered olivine (iddingsite) phenocrysts and microlites. Content = ~1.74% (Hyperspectral cube classification maps). Some crystals are to small to be mapped with this technique.
- Relevance
- unknown
- Arrangement
- unknown
- Formula
- $A_{2-3}(SiO_4)_{1-2} \ \ \ \ \ $ where $A = Mg,Fe^{2+},Fe^{3+},Ni$ and/or $Mn$
- Chemical formula
- (Mg,Fe2+,fe3+,Mn,Ni)(2-3)(SiO4)(1-2)
- Elemental formula
- (Mg)0-2 (Mn)0-2 (Ni)0-2 (Fe2+)0-2 (Fe3+)0-2 (Si)1-2 (O)4-8
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $MgO$ $MnO$ $FeO$ $Fe_{2}O_{3}$ $NiO$ $SiO_{2}$ Mass fraction (%)
Strunz
- Class
- silicates (09)
- Division
- nesosilicate (09.A)
- Family
- without additional anions; cations in octahedral [6] coordination (09.AC)
- Code
- 09.AC.05
Dana
- Major class
- silicates (VIII)
- Class
- nesosilicate insular SiO4 groups only (51)
- Type
- with all cations in octahedral [6] coordination (51.03)
- Group
- Olivine group (51.03.01)
- Phase type
- crystalline
- Crystal system
- various
- Crystal class
- various
- Crystal class symbol
- various
- Crystal spacegroup
- various
- Molar mass
- 140.69-351.71 $g/mol$
- Density
- 3.21-4.6 $g/cm^3$
- Refringence type
- unknown
- Refringence sign
- unknown
- Diaphaneity
- transparent to opaque
- Luster
- various