Selenite
Numéro d’image : 11675679
| Selenite is the translucent to transparent variety of the ubiquitous mineral gypsum,a calcium-sulfate dihydrate with the chemical formula CaSO4·2H2O. Selenite's name is derived from the Greek word for moon,a name explained by it's pearl-like lustre,reminiscent of the glow of the moon. As opposed to what is suggested,Selenite contains no Selenium; the similarity of names comes from both substances being named after the Greek word for the Moon.The sample in this picture is of a type called "Selenite rods or blades" and originates from a mine in southern Morocco,where the purity and elongate columnar crystallinity of the material is taken advantage of to produce decorative pillars that are sometimes illuminated from inside | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Wiersma, Dirk |
| Taille de l’image : | 3744 px × 5616 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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