| Mineral: | Dellaventuraite: NaNa2(Mg2,Mn+++,Li,Ti)Si8O22O2
Aegirine-augite: (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6]
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| 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. |
| Copyright: | © American Mineralogist |
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