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Marsten Ranch Jasper Slabs from Oregon
Marsten Ranch Jasper probably has its origin as petrified wood. The wood structure has been lost, so it would be more properly referred to as a limb cast. Nonetheless, this jasper has bright contrasting red, yellow and green colors that create superior gemstones and slabs. PLEASE NOTE: Marston Ranch Jasper often has vugs and fractures. . Jasper is an opaque, microcrystalline form of quartz. As with any microcrystalline quartz, it is hard and takes an excellent polish with cerium or tin oxide.