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  

Nickeline Safflorite and Siderite

#PD30643

Nickeline Safflorite and Siderite

#PD30643
Availability
Sold
Size
6.5 x 4 x 1 cm - Sm Cabinet 
Formula
NiAs (RRUFF)
Locality
Hi-Ho Silver mine, Cobalt dist., Ontario, Canada

The Cobalt district is located within the Superior structural province of the Canadian Shield. Two distinct suites of minerals and age of mineralization occur throughout the region. The older are base metal sulfides associated with Archean volcanics and are classified as stratiform and syngenetic. The younger are the ore suites consisting of silver-cobalt-nickel-arsenic assemblages hosted within Archean volcanics and Huronian rocks and are fissure fillings and replacement veins. It was found through detailed research of ore samples that five typical assemblages of arsenides occur in specific parts of the ore veins at Cobalt. This specimen belongs to group 2, the Ni-Co-As assemblage, which typically contains a high Silver content and a predominance of nickel and cobalt arsenides. These assemblages were defined by William Petruk in the 1960's and published in "The Silver-Arsenide Deposits of the Cobalt-Gowganda Region, Ontario" (MAC). This specimen contains abundant Nickeline and Safflorite. It is a sawed and polished on one side which shows well the rosettes and veinlets of the ore minerals.

Nickeline

Formula
NiAs 
Crystal System
Hexagonal 
Crystal Habit
Massive, Reniform, Columnar 
Cleavage
Imperfect, Imperfect, None 
Luster
Metallic 
Color
lead gray, grayish, copper, black 
Streak
brownish black 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Uneven 
Hardness
5.5 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
View Nickeline
On Dakota Matrix
Previously Sold Nickeline
On Dakota Matrix
Other Available Nickeline
WebMineral
View Nickeline
Mindat
View Nickeline

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2019 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map