Pyrophyllite
Numéro d’image : 11717193
| Pyrophyllite is a rare phyllosilicate mineral,an aluminum silicate hydroxide (Al2Si4O10(OH)2) It occurs either as flakes more or less similar to muscovite or as compact radial-acicular (needle like) masses,with distinct crystals not known. The folia have a pearly luster,and are usually arranged in radial fan-like or spherical groups,in off-white to orange red hues. Pyrophyllite occurs in phyllite and schistose rocks,often associated with kyanite,of which it is an alteration product. It also occurs as hydrothermal deposits,and is then an alteration product of feldspar. Pyrophyllite has been mined as a substitute for talcum. This sample from Graves Mountain in Georgia,USA,actual width is 110 mm | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Wiersma, Dirk |
| Taille de l’image : | 5616 px × 3744 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 €