Rutile,titanium dioxide,is a common mineral and sometimes is even a major component of beach sand. It is the major source of the element titanium,a strategic metal with unique properties. Rutile is red,but crystals can be so thick as to appear black. The lovely reticulated (lace-like) aggregates from Boiling Springs,North Carolina are not typical formations. Rutile crystals are generally primsatic,but also can be acicular (needle-like) and when overgrown by clear quartz the result is rutillated quartz,a popular gem material | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Arem, Joel |
Taille de l’image : | 3855 px × 2553 px |
Model Release : | Non requis |
Property Release : | Non requis |
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