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Copper Secondaries: Azurite/Malachite - Rough Shattuckite Rough
Azurite, Malachite and Shattuckite are secondary copper minerals. Good quality
lapidary rough in these materials are getting really hard to find. Modern
mining practices dissolve all these beautiful minerals in order to get the
most copper at the cheapest price. Unfortunately, we lose access to good
lapidary material and mineral specimens and often our aquifers get polluted
in the process. Ah, progress!
These materials generally take a good polish with tin oxide or diamond,
followed with green rouge (Zam is a brand name for green rouge). Mohs hardness
3.5 to 4.0 for Azurite and Malachite. The Shattuckite from Wickenburg is
highly silicated and has a Mohs hardness closer to 5.5 to 6.
Locality: Various localities
A lot of this material has chatoyant malacite!!.
Sample of Azurite/Malachite Rough.
Locality: Morenci, Arizona
This material was purchased many years ago from an old collection.
Sample of Azurite/Malachite/Tenorite Rough.
We have more selections of this
material on our new website: CopperCanyonLapidary.com