Rhyolite (Llanite) Rough Crystal - Large size approx. 50mm - 90mm. 
Rhyolite is an igneous, volcanic rock, of felsic composition. It may have any texture from glassy to aphanitic to porphyritic. The mineral assemblage is usually quartz, sanidine, and plagioclase. Biotite and hornblende are common accessory minerals. It is the extrusive equivalent to granite. 
 
Buy here online or in our shop in Paphos, Cyprus. 
 
Please note: The picture is an example of the crystal, the one you will receive will be similar but as all crystals are unique, it may differ.