![]() ![]() Most Popular Varieties of Agate Stone:īanded agate, carnelian, sard, sardonyx, onyx, chrysocolla, eye agate, dendritic agate, fire agate, agate geode, moss agate and brecciated agate are some of the popular varieties of agate. Amethyst, citrine and smoky quartz are a few of the more popular examples of macrocrystalline quartz gemstones. Both quartz branches share the same chemical composition but form with differing crystal structures. Cryptocrystalline quartz is one of two primary branches of quartz gemstones (macrocrystalline is the other). In many cases, a single agate specimen may even be referred to by two or more different trade names.Īgate is a form of cryptocrystalline quartz. Locality based trade names are generally only used by collectors. ![]() Many agate varietal classifications are based on optical properties, while others are based on inclusions, mining localities or geographic origins. ![]() Dendritic Agate Treatmentĭendritic agate is not known to be treated or enhanced in any way.ĭendritic Agate: Other Similar or Related Gemstones: Back to Topĭendritic agate is one of the many varieties of agate stone available today. Dendritic agate can be difficult to cut because dendrites form at various depths, which means that bringing desirable patterns to the surface requires skillful cutting away of surface layers, often resulting in uneven and undulating surfaces. Free-form slabs are most common, but other common shapes include ovals, pears, rounds and other traditional shapes. Dendritic Agate Cut and Shapeĭendritic agate is typically plain-cut, most often en cabochon. Dendritic inclusions that resemble landscapes are rare and highly sought-after, especially by gemstone collectors. Dendritic agate exhibits a waxy to dull luster. Translucent specimens are most desirable. Dendritic Agate Clarity and Lusterĭendritic agate is typically translucent to opaque. Traces of iron ions will often result in slightly reddish to brown inclusions. In some cases, dendritic inclusions may form in spotted clusters rather than branching structures these are sometimes referred to as 'mosquito stones'.īuying Dendritic Agate and Determining Dendritic Agate Gemstone Value Back to Top Dendritic Agate Colorĭendritic agate is typically colorless to whitish-gray in color and accompanied by brown to black branching tree-like inclusions, owed to crystallized manganese and iron impurities. The impurities crystallize inside the agate in branching formations seeping through fine surface fractures. The iron and manganese ions gain access to the forming stone as weathering solutions from neighboring rock. ![]() 'Dendrites', a Greek word for 'tree-like', are inclusions that appear organic due to their plant-like structure, but they are actually inorganic traces of iron or manganese. It is considered to be one of the rarer and more sought-after varieties of agate stone, although it is technically not a 'true agate' since it lacks the typical banding of other agate stones. 254.99 SSJ Dendrite Dendritic Agate Scenic Dendrite Scenic Dendritic add-to-cart //////43493706858746 7 30.00 254.About Dendritic Agate - History and Introductionĭendritic agate is a translucent, colorless to whitish-gray variety of chalcedony quartz, easily distinguished by its distinct tree- or fern-like markings known as 'dendrites', which are most often brown to black in color. ![]()
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