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0 item @ $0.00  

Mixed and Rare Minerals

Sunday, 12 November 2023 06:00 PM

Introducing the "Mixed and Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including ilmenite, libethenite, mimetite, and segnitite and more from places like Ishpeming, Marquette Co., Michigan, United States, East Gunnislake mine, Gunnislake, Calstock, Cornwall, England, San Pedro Corralitos, Chihuahua, Mexico, and San Nicolás mine, Valle de la Serena, Badajoz, Spain.

Ilmenite

with Calcite - #CL62729
Locality
Ishpeming, Marquette Co., Michigan, United States 
Formula
Fe2+Ti4+O3 
Availability
Available
Price
$45.00
Size
6 x 4.5 x 4 cm - Sm Cabinet 

For just Ilmenite, this is an attractive specimen which is loaded with plates of metallic crystals from 1 to 3cm in a light pink Calcite matrix.


Ilmenite

Formula
Fe2+Ti4+O3 
Crystal System
Trigonal 
Crystal Habit
Tabular, Massive - Lamellar 
Cleavage
None, None, None 
Luster
Sub Metallic 
Color
iron black, black 
Streak
brownish black 
Class
Trigonal - Rhombohedral 
Fracture
Conchoidal 
Hardness
5-5.5 
Collection
Chet S. Lemanski, Jr. Collection
Mineralpedia
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Previously Sold Ilmenite
On Dakota Matrix
Other Available Ilmenite
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Libethenite

#CL62734
Locality
East Gunnislake mine, Gunnislake, Calstock, Cornwall, England 
Formula
Cu2PO4(OH) 
Availability
Available
Price
$35.00
Size
7 x 3.5 x 4 cm - Sm Cabinet 
Tagged
phosphate , copper  

A good representative specimen of micro Libethenite crystals from this classic Cornish locality.


Libethenite

Formula
Cu2PO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Druse, Globular 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous - Greasy 
Color
green, dark green, blackish green, light olive green, dark olive green 
Streak
light green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Collection
Chet S. Lemanski, Jr. Collection

Mimetite

#CL62370
Locality
San Pedro Corralitos, Chihuahua, Mexico 
Formula
Pb5(AsO4)3Cl 
Availability
Available
Price
$40.00
Size
4.5 x 3 x 1.5 cm - Miniature 
Tagged
arsenate  

Excellent botryoidal bright yellow Mimetite.


Mimetite

Formula
Pb5(AsO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Reniform, Globular, Prismatic 
Cleavage
Imperfect, None, None 
Luster
Adamantine - Resinous 
Color
white, yellow, orange, brown, red 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5-4 
Collection
Chet S. Lemanski, Jr. Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Mimetite
On Dakota Matrix
Other Available Mimetite
WebMineral
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Mindat
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Segnitite

#BAC62810
Locality
San Nicolás mine, Valle de la Serena, Badajoz, Spain 
Formula
PbFe3+3(AsO4)(AsO3OH)(OH)6 
Availability
Available
Price
$35.00
Size
3.3 x 1.7 x 2.5 cm - Miniature 
Tagged
arsenate  

Yellow crystals across face and backside with mica.


Segnitite

Formula
PbFe3+3(AsO4)(AsO3OH)(OH)6 
Crystal System
Trigonal 
Cleavage
Good, None, None 
Luster
Adamantine 
Color
greenish brown, yellow brown 
Streak
light yellow 
Class
Trigonal - Hexagonal Scalenohedral 
Hardness
Collection
William & Anne Cook Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Segnitite
On Dakota Matrix
Other Available Segnitite
WebMineral
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Mindat
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