Illite e sericite ps. da leucite - Kalehöyük - Kaman Distr. - Kirşehir Prov. - Turchia
(#GMA26071)
Two varieties of muscovite have partially replaced a large, twinned Leucite crystal.
Illite is present on virtually all faces, while Sericite consists of the reddish crystals in the geode.
Specimen weight:90 gr.
Crystal size:--
Overall size:50mm x 50 mm x 42 mm
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Marioantofillite - Monte Copello-Reppia mine, Reppia, Ne, Genoa, Liguria, Italy (TL)
(#MINS9296)
Specimen rich of blue Marioantofilliite crystals forming a sphere associated with pale green malachite sprays and Allophane from the type locality.
Specimen weight:15 gr.
Crystal size:sub-mm
Overall size:55mm x 34 mm x 20 mm
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Alluaudite and litiophillite - Buranga Pegmatite - Muhororo - Ngororero Distr. - Western Prov. - Rwanda
(#GMA26017)
The massive green area of alluaudite is visible with the black area of litiophillite.
Specimen weight:255 gr.
Crystal size:--
Overall size:68mm x 77 mm x 46 mm
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Goldhillite -Tripoli Mine, Del Cura Ravine, Huércal de Almería, Almería, Andalusia, Spain
(#MINS9155)
Dark green Goldhillite xls with adamantine luster with Conichalcite and Malachite in association.
Specimen weight:43 gr.
Crystal size:up to 1 mm
Overall size:43mm x 30 mm x 28 mm
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