Rhyolite - Gemstone gravel
 
Decorate your potted succulents by using gemstone gravel from of our decorative gravel range.
 
Rhyolite is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained in texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent of granite

Please note:
Photos were taken in bright sunlight to bring out the best colour. The gravel might vary slightly from the photo, as this is a natural stone, variation is found in different batches. There may also be traces of other gemstones, due to the size of the stones they can not be hand graded.

Available in: 100 gram packets