Dellaventuraite Aegirine-augite Image

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Aegirine-augite, Dellaventuraite

Mineral:

Aegirine-augite: (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6]
Dellaventuraite: NaNa2(Mg2,Mn+++,Li,Ti)Si8O22O2

Comments:

View in plane-polarized light of reddish brown dellaventuraite (OPTK) as an overgrowth on purple-gray aegirine-augite (AE-AG) in a matrix of rounded quartz (QZ) with minor rounded (high relief) apatite grains. (AmMin 90:306).

Location:

Kajlidongri manganese mine, Jhabua District, Madhya Pradesh, India.

Scale:

Picture size 2.5 cm.

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