|
Chemical formula
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SiO2 • nH2O |
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Crystalline system
|
Amorphous |
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Class
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Silicates - Mineraloid |
| Origin | Broken Hill, Australia |
| Size | 2.0-3.0cm |
Noble Opal with bluish hues on laterite.
This opal in its highest quality is used in jewelry since it produces iridescence due to the diffraction of light and the way it crystallizes. Under the influence of white light, it glows with all the colors of the rainbow.
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.