3" Inches to 4"
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Matrix & Agate
This Rhyolite Matrix & Agate is 3.02"
(76.85mm) in size.
are Sold Separately
|# rma - Price: $73.00 + shipping
Spheres Medium Spheres
Spheres Page 1 Sold Spheres Page
2 Sold Spheres Page
3 Sold Spheres Page
4 Sold Spheres Page
*Vugs are small cavities inside rock that
are formed when crystals form inside a rock matrix and are later removed
through erosive processes, leaving behind voids. A common cause of vugs is
minerals precipitating from solution in water, and then later being dissolved
again by less saturated water. The inner surfaces of vugs are often coated with
some of the mineral matter that formed them. Fine crystals are often found in
vugs where the open space allows the free development of external crystal form.
Geodes are a common vug formed rock.