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Diameter, mm (1mm - 0,039inch)

Collectible minerals - full range in stock "Goethite"

Goethite is a mineral that has another name - “needle iron ore”. Already from the name it is clear that it is an iron-containing mineral. It is formed from a number of other iron-bearing minerals and is the end product of their weathering. Goethite is named after the great German poet Johann Wolfgang von Goethe, who was not only a poet, but also a naturalist and a collector of minerals. This mineral has a very wide distribution. Its forms are diverse: from crusts to crystals. In addition, it forms very spectacular pseudostalactites.
You can see goethite stone for sale and buy it in the Minerals of Russia online store.

Physical properties of Goethite

General
Category oxide minerals hydroxide subgroup
Formula
(repeating unit)
α-FeO(OH)
IMA symbol Gth[1]
Strunz classification 4.FD.10
Crystal system Orthorhombic
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space group Pbnm
Identification
Color Yellowish to reddish to dark brown or black
Crystal habit radial acicular, mammillary, botryoidal, stalactitic, massive, as encrustation, as pseudomorph; may be banded or iridescent
Cleavage Perfect {010}
Fracture Uneven to splintery
Mohs scale hardness 5 - 5.5
Luster Adamantine to dull
Streak Brown, brownish yellow to orange yellow
Specific gravity 3.3 - 4.3
Refractive index Opaque to sub-translucent
Fusibility Fusible at 5 - 5.5
Solubility HCl soluble
Other characteristics weakly magnetic

Code: 2564
Golden small mountain (Zolotaya Gorka), Berezovskoe (Au) deposit (ore field), Berezovsky urban district, Sverdlovsk region , Ural, Russia
43*36*25mm

0.00 $ $17.00

Code: 492
Beskimpir, Kazakhstan
197*75*65mm

0.00 $ $363.27

Code: 1398
Zolotaya Gorka, Berezovskoye (Au) deposit, Berezovsky urban district, Sverdlovsk region, Middle Urals, RF
56*39*24mm

0.00 $ $27.27

Code: 1059
Nikolskoye village, Chelyabinsk region, South Ural, RF
62*42*8mm

0.00 $ $10.91

Code: 1060
Nikolskoye village, Chelyabinsk region, South Ural, RF
46*31*2mm

0.00 $ $5.45

Code: 1631
Rudnogorsk deposit, Irkutsk region, Baikal region, RF
45*32*26mm

0.00 $ $21.45

Code: 1057
Nikolskoye village, Chelyabinsk region, South Ural, RF
130*77*10mm

0.00 $ $16.36

Code: 1058
Nikolskoye village, Chelyabinsk region, South Ural, RF
87*37*10mm

0.00 $ $5.45

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