Ferrotapiolite

  

 

Twinned crystals

Origin: Sapucaia district, Galileia, Minas Gerais, Brazil

Sample size: top 2.5 x 1.5 x 1.5 cm , bottom 2.5 x 2 x 2 cm

 

    

 

  

Single 18 x 16 mm, complete, euhedral, black,crystal perched nicely front and center on muscovite/albite matrix.

Origin: Paralhas, Rio do Norte, Brazil

Sample size: 6 x 6 x 4 cm (top), 5 x 4 x 3 cm (bottom)

 

  

Origin: Sekula pegmatite, Tamela, Finland

Sample size: 3 x 2.5 x 1 cm black, heavy chip.

 

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Ferrotapiolite on quartz  and albite

  

Origin: Parelhas, Rio Grande do Norte, Brazil

Sample size: 4 x 3 x 2 cm (top), 3.3 x 2.8 x 2.5 cm (2nd row), 5.2 x 4.5 x 2.5 cm (3rd row), 9 x 5 x 3 cm (4th row), 4.4 x 2.7 x 2.5 cm (5th row), 4.5 x 3.3 x 3.1 cm (6th/bottom row)

 

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