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
2 items @ $85.00  

Tin Minerals

Saturday, 12 October 2024 08:00 AM

Introducing the "Tin Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including cassiterite, stannite, toyohaite, wickmanite and more from places like Wheal Maid Decline dumps, St. Day, Redruth, Cornwall, England, North Seal Hole mine, St Agnes Consols, St Agnes, Cornwall, England, Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina, San Martín mine, Sombrerete, Zacatecas, Mexico.

Cassiterite

with Scorodite - #58114
Locality
Wheal Maid Decline dumps, St. Day, Redruth, Cornwall, England 
Formula
SnO2 
Availability
Available
Price
$25.00
Size
5 x 5 x 3.5 cm - Miniature 
Tagged
tin  

Locality piece with a few good crystals to 1mm and crystal grains. Collected by Dale Foster in 2011.


Cassiterite

Formula
SnO2 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Massive, Botryoidal 
Cleavage
Perfect, Indistinct, None 
Luster
Adamantine 
Color
brown, brownish black, colorless, green, gray 
Streak
brownish white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Irregular 
Hardness
6-7 

Cassiterite

#58119
Locality
North Seal Hole mine, St Agnes Consols, St Agnes, Cornwall, England 
Formula
SnO2 
Availability
Available
Price
$25.00
Size
5 x 2 x 2 cm - Miniature 
Tagged
tin  

Nice piece with light brown crystals to 2mm collected in 2015 by Dale Foster.


Cassiterite

Formula
SnO2 
Crystal System
Tetragonal 
Crystal Habit
Prismatic, Massive, Botryoidal 
Cleavage
Perfect, Indistinct, None 
Luster
Adamantine 
Color
brown, brownish black, colorless, green, gray 
Streak
brownish white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Irregular 
Hardness
6-7 

Stannite

#64519
Locality
Redruth, Cornwall, England 
Formula
Cu2FeSnS4 
Availability
Available
Price
$95.00
Size
5 x 4.5 x 3 cm - Miniature 
Tagged
sulfide , copper , tin  

Massive silvery black mass from a desirable locality. It comes out of the A. E. Seaman surplus collection with an old label, see prov. tab.


Stannite

Formula
Cu2FeSnS4 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Crystalline - Fine 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
blue, grayish black, steel gray 
Streak
black 
Class
Tetragonal - Scalenohedral 
Fracture
Uneven 
Hardness
3.5-4 
On Dakota Matrix
Previously Sold Stannite
On Dakota Matrix
Other Available Stannite
WebMineral
View Stannite
Mindat
View Stannite

Toyohaite

with Pirquitasite & Franckeite - #KR62778
Locality
Pirquitas Ag-Sn Deposit, Rinconada Dept., Jujuy, Argentina 
Formula
Ag2FeSn3S8 
Availability
Available
Price
$350.00
Size
4 x 3 x 3 cm - Miniature 
Tagged
sulfide , tin , silver  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Ex. Dr Werner Paar specimen with microscopic Toyohaite crystals not seen with the naked eye in Franckeite and Cylindrite matrix.  Toyohaite is an extremely rare silver-tin sulfide. On the backside is a 1mm tetragonal Pirquitasite crystal much like the one photographed by Brent Thorne on Mindat click here.

Comes with the original Werner Paar label and also a Josef Vajdak label. See prov. tab.


Toyohaite

Formula
Ag2FeSn3S8 
Crystal System
Tetragonal 
Luster
Metallic 
Color
gray 
Class
Tetragonal - Dipyramidal 
Hardness
Collection
Kenneth Raabe Collection, Ex. Dr. Werner Paar Collection
Special Info
XRD Confirmed
Special Info
EDS Confirmed

Wickmanite

on Quartz - #43721
Locality
San Martín mine, Sombrerete, Zacatecas, Mexico 
Formula
Mn2+Sn4+(OH)6 
Availability
Available
Price
$225.00
Size
6 x 3.5 x 3.5 cm - Sm Cabinet 
Tagged
tin  

Very rich specimen with about a hundered or so yellow cubic crystals.


Wickmanite

Formula
Mn2+Sn4+(OH)6 
Crystal System
Isometric 
Crystal Habit
Octahedral Crystals 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, orange brown, yellow orange, colorless 
Streak
white 
Class
Isometric - Hexoctahedral 
Hardness
3-4 

Wickmanite

on Quartz - #50776
Locality
San Martín mine, Sombrerete, Zacatecas, Mexico 
Formula
Mn2+Sn4+(OH)6 
Availability
Available
Price
$150.00
Size
5.5 x 3 x 2 cm - Sm Cabinet 
Tagged
tin  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

About a dozen or so lemon yellow Wickmanite crystals to about 0.3mm on a frosted Quartz crystal group. Most all of the crystals are between the two blue arrows. A nice There are also some clear cubic Fluorite crystals.


Wickmanite

Formula
Mn2+Sn4+(OH)6 
Crystal System
Isometric 
Crystal Habit
Octahedral Crystals 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, orange brown, yellow orange, colorless 
Streak
white 
Class
Isometric - Hexoctahedral 
Hardness
3-4 
Special Info
XRD Confirmed
Special Info
EDS Confirmed

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2025 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map