Mineral samples: Natural beauties!
Clear quartz crystal forest!
Intersecting iron pyrite cubes formed during the past 120 million years in limestone / sandstone layers in the Navajun mine, Spain.
Amazonite crystal, 4cm x 8cm. Blue is an uncommon colour in minerals.
Intersecting pink tourmaline crystals.
Chrysocolla (the glassy looking dark green crystals), a hydrated copper silicate mineral, and Malachite (the dull powdery looking material), a copper carbonate mineral. From Zaire.
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