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Stilbite Specimens
Stilbite is the name of a series of tectosilicate minerals of the zeolite group. Prior to 1997, stilbite
was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed
it to a series name, with the mineral species being named: stilbite-Ca & stilbite-Na
Stilbite-Ca, by far the more common of the two, is a hydrous calcium sodium and aluminium silicate. In the
case of stilbite-Na, sodium dominates over calcium. The species are visually indistinguishable, and the series name stilbite
is still used whenever testing has not been performed.
At one time heulandite and stilbite were considered to be identical minerals. After they were found to be
two separate species, in 1818, the name desmine ("a bundle") was proposed for stilbite, and this name is still employed in
Germany. The English name "stilbite" is from the Greek stilbein = to shine, because of the pearly luster of the {010} faces.
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This is an incredible plate of small stilbite crystals with a beautiful calcite crystal in the center of the plate.
Very special specimen from the Upper New Street Quarry, Patterson, NJ. Approx. size: 119x104x14 Weight: 96.2 gm.
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Delightful little specimen od small tan stilbite crystals from the classic Upper New Street Quarry in Patterson NJ. Approx.
size: 71x49x19 Weight: 40.4 gm.
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Cluster of fairly large crystals from the legendary Upper New Street Quarry in Patteerson, NJ. Approx. size: 73x40x31
Weight: 100.4 gm.
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