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0 item @ $0.00  

Goethite

#PD30427
SOLD
Goethite from Restormel Iron mine, St. Austell district, Cornwall, England - PD30427
Goethite from Restormel Iron mine, St. Austell district, Cornwall, England - PD30427

Goethite

#PD30427
Availability
Sold
Size
7 x 4 x 2.5 cm - Sm Cabinet 
Formula
FeO(OH) (RRUFF)
Locality
Restormel Iron mine, St. Austell district, Cornwall, England

Hardly good photos for this rather shiny Goethite specimen. The Goethite crystals occur as divergent groups to 7mm within drusy Quartz matrix. There are several groups of Goethite and one group shows the clasic zoned patterns on the backside.

Goethite

Formula
FeO(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Reniform, Radial 
Cleavage
Perfect, Distinct, None 
Luster
Adamantine - Silky 
Color
brown, reddish brown, yellowish brown, brownish yellow, ocher yellow 
Streak
yellowish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Hackly 
Hardness
5-5.5 

Data courtesy of Webmineral.

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