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This Specimen has been sold.
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6.3" Polished Tree Agate Slab - India
This is a 6.3" wide slab of white jasper with green dendrites, known as tree agate. It has been cut flat on both sides and polished to a glossy finish on one. It comes with an acrylic display stand.
About Tree Agate
Despite the name, tree agate is actually a dendritic jasper, a variety of chalcedony marked by branching manganese and iron oxide inclusions that resemble miniature landscapes. These dark green, mossy “trees” stand out against a milky white background, creating a natural scene unique to each piece.
Most tree agate on the market comes from deposits in western and central India, where silica-rich fluids once permeated cracks in ancient rock and left behind these beautiful dendritic formations. The stone is typically polished into spheres, towers, palm stones, and tumbled pieces that highlight its natural contrast and scenic patterns. Durable, soothing in color, and endlessly variable, tree agate is popular with collectors and artisans alike for its calm, woodland aesthetic and its connection to India’s long history of chalcedony craftsmanship.
Despite the name, tree agate is actually a dendritic jasper, a variety of chalcedony marked by branching manganese and iron oxide inclusions that resemble miniature landscapes. These dark green, mossy “trees” stand out against a milky white background, creating a natural scene unique to each piece.
Most tree agate on the market comes from deposits in western and central India, where silica-rich fluids once permeated cracks in ancient rock and left behind these beautiful dendritic formations. The stone is typically polished into spheres, towers, palm stones, and tumbled pieces that highlight its natural contrast and scenic patterns. Durable, soothing in color, and endlessly variable, tree agate is popular with collectors and artisans alike for its calm, woodland aesthetic and its connection to India’s long history of chalcedony craftsmanship.
About Jasper
Jasper is a term that can be applied to an opaque variety of chalcedony. The opaqueness is due to a higher concentration of impurities mixed with silica/quartz compared to other varieties of silica, such as quartz or agates. Like agate it may form in a wide variety of colors, and is often multi-colored. In most cases, jasper forms when silica-rich fluids permeate throughout a soft sediment or volcanic debris deposit. The fluids then crystallize around the particles/impurities, resulting in a cementation process. Most often, the impurities present determine the coloration of the deposit following solidification, but other factors can play a role in the color of what is now considered a jasper.
Jasper is a term that can be applied to an opaque variety of chalcedony. The opaqueness is due to a higher concentration of impurities mixed with silica/quartz compared to other varieties of silica, such as quartz or agates. Like agate it may form in a wide variety of colors, and is often multi-colored. In most cases, jasper forms when silica-rich fluids permeate throughout a soft sediment or volcanic debris deposit. The fluids then crystallize around the particles/impurities, resulting in a cementation process. Most often, the impurities present determine the coloration of the deposit following solidification, but other factors can play a role in the color of what is now considered a jasper.
About Agate
Agate is a variety of microcrystalline quartz (chalcedony) that displays translucence and, in some cases, banding. Agate primarily forms when silica-rich fluids fill pockets within rocks and/or fossils, depositing the silica along the walls of the rock. This process can result in banding patterns, as the compositions and impurities of these depositing fluids change over time. These banding patterns can either form as flat layers, creating linear patterns known as waterline agate, or as rounded layers, forming more common ring-like patterns. These patterns depend on the surfaces available for deposition.
Agate is a variety of microcrystalline quartz (chalcedony) that displays translucence and, in some cases, banding. Agate primarily forms when silica-rich fluids fill pockets within rocks and/or fossils, depositing the silica along the walls of the rock. This process can result in banding patterns, as the compositions and impurities of these depositing fluids change over time. These banding patterns can either form as flat layers, creating linear patterns known as waterline agate, or as rounded layers, forming more common ring-like patterns. These patterns depend on the surfaces available for deposition.
SPECIES
Chalcedony var. Jasper/Agate
LOCATION
India
SIZE
6.3 x 3.8", .28" thick
CATEGORY
SUB CATEGORY
ITEM
#167487
