Rubellite I
Numéro d’image : 11681353
| Rubellite is a variety of elbaite,which is one of six members of the tourmaline group. Elbaite is a high-temperature and pressure mineral that can occur in many colours,with rubellite being the "red variety",ranging in colour from light pink to deep red. Rubellite commonly occurs in hexagonal,prismatic crystals,often slender,with vertical striations. It is very hard (7 – 7.5) and heavy,with a conchoidal fracture and opaque to transparent with a vitreous lustre. It is strongly piezoelectric and pyroelectric and can be charged electrically by heating and cooling. Rubellite may contain varying quantities of sodium,calcium,magnesium,lithium,aluminium and iron but with a constant structure and content of boron,aluminium,silica and the volatiles B2O3 and Li2O. Popular as a gemstone,but also has wide appeal as a healing stone. From Coronel Murta,Minas Gerais in Brazil | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Wiersma, Dirk |
| Taille de l’image : | 5106 px × 3546 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
Prix pour cette image À partir de 45 €
Produit vendu
(Calendrier, Carte postale, Carte de vœux, Impression sur textile, Packaging etc)
À partir de 45 €
Usage commercial
(Affichage, Annonce presse, Annonce TV, Carte, Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 45 €
Éditorial
(Digital, Journal, Livre, Livre pratique, Magazine, Télévision etc)
À partir de 60 €
Usage non-commercial
(Digital - hors rés. sociaux, Digital - rés. sociaux etc)
À partir de 120 €