Quartz. View of crystals of quartz showing a variety of prisms and pyramidal ends. Quartz is a form of silica (silicon dioxide). It occurs naturally all over the world as sand,and in rocks and mineral veins. Pure quartz is colourless,and its most familiar form is sand. Quartz has many desirable properties and consequently has many applications. These include glass,porcelain,electronics,clocks and watches | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Bond, Martin |
Taille de l’image : | 3918 px × 4381 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |