Rich, bright red crystalline masses of gillespite in creamy white sanbornite in associacion.
Formula :
BaFe2+[Si4O10]
System: tetragonal Hardness:3 Rarity:rare
Strunz id:VIII/H.1-50 -
SILICATES
Name origin: Named for Frank Gillespie, of Richardson, Alaska, USA, who discovered the first specimen.
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 Specimen weight:38 gr.
 Crystal size:Up to 1 cm
 Overall size: 58mm x 25 mm x 24 mm
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