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Rio de Janeiro, Southeast Region, Brazil

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Allanite-(Ce) : {CaCe}{Al2Fe2+}[O|OH|SiO4|Si2O7]

Rio de Janeiro, Rio de Janeiro, Southeast Region, Brazil

Allanite-Ce fragment. Size 8x5x3cm. Rafael Hernandes Corrêa-Silva Collection.
 © BrhoundsPhoto ID: 45142    View Count: 408

Calcite : CaCO3, Quartz (Var: Amethyst) : SiO2

Rio de Janeiro, Southeast Region, Brazil

22x20 cm
 © Alfonso RodriguezPhoto ID: 64664    View Count: 200

Rutile : TiO2

Barra do Rio Itabapoana, São Francisco do Itabapoana, Rio de Janeiro, Southeast Region, Brazil

twinned V shap Rutile crystals. Size 2.5x2.5x1cm. Rafael Hernandes Corrêa-Silva Collection
 © BrhoundsPhoto ID: 47492    View Count: 244

Rutile : TiO2

Barra do Rio Itabapoana, São Francisco do Itabapoana, Rio de Janeiro, Southeast Region, Brazil

Nice Rutile Crystal Fragment. Size 5.5x3x2.3cm. Rafael Hernandes Corrêa-Silva Collection.
 © BrhoundsPhoto ID: 47493    View Count: 244

Multiple photos availableSillimanite : Al2[O|SiO4], Biotite

Saquarema, Rio de Janeiro, Southeast Region, Brazil

Sillimanite sample with Biotite in center - 6x4x1,5cm - October of 2007
 © Martins da PedraPhoto ID: 129672    View Count: 314
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