Museum Quality Dioptase on Plancheite

This one-of-a-kind, show-stopping dioptase specimen from the Democratic Republic of the Congo (DRC) is an absolute masterpiece, bringing serious presence to any fine mineral collection. Featuring thumb-sized dioptase crystals, with the largest measuring 1.5 inches long by 5/8" in diameter, this specimen showcases the unparalleled emerald-green color, exceptional luster, and remarkable clarity for which dioptase is celebrated.
Resting on a pale blue plancheite matrix, another carbon-based mineral, this striking contrast of vibrant green against soft blue creates a mesmerizing visual effect. This is dioptase like you’ve never seen before—a true investment piece that will elevate any collection to new heights.
Interesting Facts
Dioptase is often mistaken for emerald due to its rich green hue, but its intense color is the result of copper content rather than chromium or vanadium.
Plancheite is a rare secondary copper mineral, typically forming in oxidation zones of copper deposits, and is known for its soft blue color and fibrous formations.
Large dioptase crystals like these are exceptionally rare, making this an extraordinary specimen for collectors and enthusiasts alike.
Features
Origin: Democratic Republic of the Congo (DRC)
Material: Dioptase on Plancheite Matrix
Crystal Size: Largest dioptase crystal measures 1.5” long by 5/8” in diameter
Special Characteristics: Exceptional clarity, deep emerald-green color, and stunning contrast against pale blue plancheite
Dimensions and Weight
Width        Depth        Height        Weight
4-1/4”        2-3/4”        2”        319 g
Just in Astro West.