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This Specimen has been sold.
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7.05" Polished Green Opal Tower - Madagascar
This is a 7.05" tall, polished tower, sculpted from green (common) opal collected in Madagascar. This unique stone has a rich, pistachio-green color and interesting patterning. The base has been cut flat for presentation.
Green opal is an amorphous variety of quartz, with the chemical composition of SiO2 · nH2O. This hydrated silicate mineraloid has the associated chemical composition and lack of crystal structure that terms this mineral conglomerate as an opal.
During formation, microscopic holes form within the silica, forming secondary silica lamellae-like strings throughout, giving the rock its inner web-like appearance.
During formation, microscopic holes form within the silica, forming secondary silica lamellae-like strings throughout, giving the rock its inner web-like appearance.
SPECIES
Green Opal (Common Opal)
LOCATION
Madagascar
SIZE
7.05" tall, 1.8" wide base
CATEGORY
SUB CATEGORY
ITEM
#245336
