Spinel - Pamir - Tajikistan
(#GM24060)
Some large black spinels are stunning on the surface of this specimen: one is perfectly formed and intact, the others are not.
The original tag lists the provenance as CIS ...
Former mineralogical collection of Sandro Maggia: no. S-70.
Specimen weight:65 gr.
Crystal size:mm. 22
 Overall size:43mm x 35 mm x 30 mm
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Forsterite - Quebec - Canada
(#GM24056)
Some large and well-formed forsterite crystals are stunning over the matrix of this specimen.
The black and incomplete crystals that can be seen are almost ...
Formerly Sandro Maggia's mineralogical collection: no. F-68.
Specimen weight:36 gr.
Crystal size:mm. 13
Overall size:52mm x 30 mm x 24 mm
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Spinel - Luc Yen - Yen Bai Prov. - Vietnam
(#GM20083)
Big dark violet colored crystals of spinel are in good evidence over the whitish matrix.
The specimen was etched to eliminate the calcite that covered the crystals.
Specimen weight:350 gr.
Crystal size:mm. 36
Overall size:102mm x 50 mm x 55 mm
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Spinel - VIllage of Monroe, Town of Monroe, Orange Co., New York, USA
(#FERR1162)
Very old specimen featuring big black cube-octahedra of Spinel, from an unusual US locale.
Nice old label!
Specimen weight:48 gr.
Crystal size:2,2 cm
Overall size:54mm x 40 mm x 23 mm
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Owner : GMineral (Voghera - Italy) 