pseudomalachite
Mineralogy
noun
A mineral resembling malachite that typically occurs as botryoidal masses and fibrous aggregates of dark green translucent crystals and is a secondary mineral found in oxidized zones of copper ore deposits.
- Pseudomalachite is a phosphate and hydroxide of copper, Cu5(PO4)2(OH)4. Crystal system: monoclinic..
Origin
Mid 19th century; earliest use found in Charles Shepard (1804–1886). After German Pseudomalachit.
- double-dip recession
- double dissolution
- double dot
- double-double
- double down
- double dribble
- double dummy
- double Dutch
- double-dyed
- double eagle
- double-edged
- double effect
- double-ender
- double entendre
- double-entry
- double exposure
- double-faced
- double fault
- double feature
- double figures
- double first
- double flat
- double-fronted
- double fugue
- double-glaze