Dendritic Opal, 8.97 cts.

White common opal with fine black manganese oxide dendrites.  Polished to a vitreous (glassy) luster.  Flat, polished back with a beveled edge for ease of setting.  You will receive the exact gemstone shown in photos. Weight: 8.97 carats Length: 20.40 mm Width: 15.44 mm Height: 3.99 mm Gem Species: Opal --Variety: Dendritic Phenomenal: No; no play-of-color Trade Name(s): Dendritic Opal, Dendritic Opalite*, Merlinite Origin: Australia Enhancement(s): (N) Natural ---------------------------------------------- * Using the term "opalite" to describe natural non-phenomenal (no play-of-color) common opal is misleading. Opalite is a man-made glass; it is neither synthetic opal nor natural opal. ---------------------------------------------- American Gem Trade Association Gemstone Enhancement Codes Enhancement: Any treatment process other than cutting and polishing that improves the appearance (color/clarity/phenomena), durability, or availability of a gemstone. (N) Natural No modification; natural stones which are not currently known to be enhanced (or currently has no known modification process).