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Minerals from
the Lake Superior Region

Images are hyperlinked.....click to enlarge


Mineral sizes are designated by the following standard abbreviations which indicate the largest  dimension:  tn (thumbnail) = 1" (2.5 cm), min (miniature) = 2" (5 cm), scab (small cabinet) = 3" (7.5cm), cab (cabinet) = 4" (10cm), and museum = 5" or larger (13 cm +)
 

Celestite

Maybee, Michigan

Size available:

min, $ 65

(mineral also contains an unidentified yellow mineral, sulfur?)
   
Copper Arsenides (mainly algodonite)

Pancake Bay, Lake Superior, North of Sault Ste. Marie, Ontario

Single specimen available:
scab, $ 200

Thick rock slice (7mm), of calcite and host rock with embedded copper arsenides with copper
   

Copper Arsenides (mainly algodonite)

Pancake Bay, Lake Superior, North of Sault Ste. Marie, Ontario

Single specimen available:
scab, $ 175

Thick rock slice (7mm), of calcite and host rock with embedded copper arsenides
 

Copper with Black Shale

White Pine Mine, Ontonagan County, Michigan USA

Sizes available:
min, $ 45
 scab, $ 75
cab, $ 100

Flat specimens with a sharp contrast between the bright copper and the black shale; some specimens with native rock matrix
 

Copper 

Caledonia Mine, Ontonagon County, Michigan USA

Sizes available: 
scab, $ 55
cab, $ 250

This copper is very bright and has  slight reddish coloration
 
Copper 

Mohawk Mine, Michigan Upper Peninsula, USA

Sizes available:
tn, $ 10
min, $ 20
scab, $ 65
cab, $ 125

Native copper with a natural green-gray matrix
 

Copper Nugget

Keweeknaw County, Michigan

Large Nugget of Copper

scab, $ 35

Last one shown
 
 

Copper Float

Upper Midwest, Wisconsin and Michigan

Size available:
min, $ 10

Pieces of copper dropped by glaciers; the copper is exposed and polished on one surface; unaltered surface is a bright green
 

Copper, Kearsarge Amygdaloid

Mohawk Mine, Michigan Upper Peninsula, USA

Mostly long, slender pieces of native copper as mined surrounded by rock matrix

Size available:

Scab, $ 35

 
  Mohawkite 

These are silver and/or copper colored metallic rocks composed
of copper arsenides and contain cobalt, silver, nickel and iron

Keweenaw County, Michigan USA


Sizes available: 
min to cab;
prices range from
$ 50 to $ 150


 These are thought to have dropped by the glaciers (they have one flat side); many have a white internal matrix 
 

Prehnite pseudomorph after Laumontite containing copper inclusions

Knife River,
North Shore of
Lake Superior,
Minnesota USA


Sizes available: 
min, $ 35
scab, $ 65
cab, $ 100


A light pink mineral with copper
inclusions throughout
 

MS Book and Mineral Company

Index to Minerals Available

Mineralogy Book Catalog

Rock, Gem, and Mineral Book Catalog

Place an Order