mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Mineralpedia Details for Natrochalcite

Reset

Natrochalcite

Natrochalcite

Named for the sodium and copper in the composition after the Latin natrium, for “sodium,” and the Greek chalkos, for “copper.” Natrochalcite is a rare mineral that occurs in arid regions in oxidized copper deposits. It is found in Chile, Italy and the United States only. Natrochalcite is lightly soluble in water.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/natrochalcite.pdf

Formula
NaCu2(SO4)2(OH)·H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
emerald green 
Streak
greenish white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
4.5 
WebMineral
View Natrochalcite 
Mindat
View Natrochalcite 

Natrochalcite from Chuquicamata mine, El Loa Prov., Antofagasta, Chile

Natrochalcite
            from Chuquicamata mine, El Loa Prov., Antofagasta, Chile

Light to dark green, translucent prismatic crystals to 2mm.

Deep green crystals to about 1mm in a 1cm plus patch.

Click thumbnail images for larger view.

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2021 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map