Montana Bark Jasper Slabs from Montana
Montana Bark is not a true jasper. Instead, it is more of a dolomite and is probably the fossilized remains of an ancient river bottom and is easy to cut.
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.
Ruler is in INCHES.
Example of a Montana Bark Cabochon
Showing all 13 results
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Slab23 – Montana Bark Jasper Slabs
$19.00 Add to cartMeasures (approx) 1 at 3/16 to 5/32″ and 1 at 9/32 to 5/32″ thick.
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Slab610 – Montana Bark Jasper Slabs
$15.50 Add to cartMeasures (approx) 1 at 1/4″ and 1 at 11/32″ thick.
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Slab99 – Montana Bark Jasper Slabs
$19.00 Add to cartMeasures (approx) 1 at 3/16″ thick and 1 at 1/4 to 3/16″ thick.
