Conichalcite is a copper that is a rare mineral that is situated in really striking colours of green. It is typically found as radial aggregates that are fibrous botryoidal to reniform crusts or massive.

砷钙铜矿（英語： Conichalcite ） [1] ，CaCu(AsO 4)(OH)，是一種分佈廣的砷酸鹽礦物，與砷铜铅矿（duftite）(PbCu(AsO 4)(OH)）相關。 常見綠色外觀，結構呈葡萄狀，產於金屬礦床的氧化帶中。

Jul 31, 2015 · Conichalcite, CaCu (AsO 4) (OH), is a member of the adelite-descloizite group and occurs in colors from dominantly green to dominantly yellow, with either a yellow or green modifier. Conichalcite is reported to occur with chrysocolla from deposits in the United States (Utah, Arizona, and California), Germany, Peru, and Australia.

Conichalcite is a rare copper arsenate mineral that is found in very striking shades of green. It is typically found as radial fibrous aggregates, botryoidal to reniform crusts or massive. Conichalcite is occassionally found mixed in with Calcite or Quartz. When this occurs, beautiful cabochons can be made. This occurrence is very rare.

Conichalcite, Ca Cu (As O 4) (O H), is a relatively common arsenate mineral related to duftite (Pb Cu (AsO 4) (OH)). It is green, often botryoidal, and occurs in the oxidation zone of some metal deposits. It occurs with limonite, malachite, beudantite, adamite, cuproadamite, olivenite and smithsonite. [3][4]

Recently, the author examined a 10.95 ct rock crystal quartz cabochon that contained elongate rod-shaped green crystals (figure 3). The green crystals showed hexagonal cross-section and were identified by Raman spectroscopy as beryl.

Named by August Breithaupt and Carl Julius Fritzsche in 1849 from the Greek κουία for "konis" (powder) and χαλκος for "chalkos" (copper) in allusion to its composition and appearance of the mineral at times. Adelite-Descloizite Group.

Conichalcite is a fairly common secondary arsenate from the oxidation zone of arsenic-rich copper deposits, associated with tyrolite, lavendulanite and olivenite. Its name comes from the Greek konis (dust) and khalkos (copper) in reference to its habitus and its chemical composition.

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