Staurolite twins at 90° (mineral), Spain3D ModelNoAI
Staurolite twins at 90° (mineral), Spain
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Triangles: 150k
Vertices: 75k
More model informationLocality: Spain
Size: 1.5 cm x 1.5 cm x 0.7 cm
Formula: Fe(II)2Al9Si4O23(OH)
Description: Staurolite is a reddish-brown to black nesosilicate mineral that crystallizes in the monoclinic system, has resinous to vitreous luster. It is also known as cross-stone; fairy stone; grenatite; staurotide. From Greek stauros, cross, alluding to the cruciform twins it displays in some cases. Staurolite is commonly found as 60° twins, and less common as 90° cruciform twins.
Website: http://geology.uaic.ro/muzee/mineralogie/
Concept & 3D-modelling by dr. Andrei Ionut APOPEI
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