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Hornblenda (Caja de 4x4)

Hornblende in Collection Box 4x4 cm

Regular price
2,50€
Sale price
2,50€
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Chemical formula

Ca 2 (Mg,Fe,Al) 5 (Al,Si) 8 O 22 (OH) 2

Crystalline system
monoclinic
Class
silicates
Origin Almeria, Spain
Size 2.0-3.0cm

Hornblende massive in andesite.

The term hornblende is the informal name with which the minerals of the "group of amphiboles" that have a color between black and dark-green have traditionally been called.

It is usually found associated with igneous and metamorphic rocks.

The mineral includes a label with the name and origin and is attached to a cardboard box. 4 cm square.

*The price is per unit (a single cardboard box of the four shown in the photo)

    Since the minerals are natural, you will receive a piece similar to the one in the photograph. The minerals come in cardboard boxes and are glued to a porex base with hot silicone; these can be removed using ethyl alcohol without damaging the mineral. The size is approximate.