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
Checkout
0 item @ $0.00  
Home | My Cart | Login | Register

Recently Released New Additions

Mixed Minerals

Sunday, 21 July 2024 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including langbanite, nadorite, sulphotsumoite, and yofortierite and more from places like Långban, Filipstad, Värmland, Sweden, Mina de la Carcel, Zacatecas, Mexico, and Mont Saint-Hilaire, Montérégie, Québec, Canada.

Langbanite - CL64343
Langbanite - CL64343

Langbanite

#CL64343
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Mn2+4Mn3+9Sb5+O16(SiO4)2 
Availability
Available
Price
$75.00
Size
5 x 4.5 x 4 cm - Miniature 
Special Info
Type Locality 

A 4mm partial crystal embedded in Rhodonite matrix.


Langbanite

Formula
Mn2+4Mn3+9Sb5+O16(SiO4)2 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Crystalline - Coarse 
Cleavage
Good, None, None 
Luster
Metallic 
Color
iron black 
Streak
grayish black 
Class
Monoclinic - Prismatic 
Hardness
6.5 
Collection
Chet S. Lemanski, Jr. Collection
Special Info
Type Locality
Mineralpedia
View Langbanite
On Dakota Matrix
Previously Sold Langbanite
On Dakota Matrix
Other Available Langbanite
WebMineral
View Langbanite
Mindat
View Langbanite
Nadorite - 64420
Nadorite - 64420

Nadorite

with Mimetite - #64420
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
PbSb3+O2Cl 
Availability
Available
Price
$575.00
Size
5.3 x 2.5 x 1.2 cm - Sm Cabinet 

Yellowish orange tabular crystals of Nadorite. These are extremely hard crystals to obtain on the market.  The best crystal is that of the second photo. It is 1mm and is the type of crystal that is shown on Mindat by Christian Rewitzer. There are several smaller crystals. The white sprays have been identified as Mimetite at the RRUFF lab. The Mimetite was an unkonwn as reported in the book "Langban" by Bollmark and others.


Nadorite

Formula
PbSb3+O2Cl 
Crystal System
Orthorhombic 
Cleavage
Perfect, None, None 
Luster
Adamantine - Resinous 
Color
brown, brownish yellow, grayish brown, yellow 
Streak
yellow white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5-4 
Mineralpedia
View Nadorite
On Dakota Matrix
Previously Sold Nadorite
On Dakota Matrix
Other Available Nadorite
WebMineral
View Nadorite
Mindat
View Nadorite
Sulphotsumoite - BAC64382
Sulphotsumoite - BAC64382

Sulphotsumoite

#BAC64382
Locality
Mina de la Carcel, Zacatecas, Mexico 
Formula
Bi3Te2S 
Availability
Available
Price
$175.00
Size
3 x 2 x 1.5 cm - Thumbnail 
Tagged
sulfide , tellurium  

Splendent 1mm crystals of silvery Sulphotsumoite.


Sulphotsumoite

Formula
Bi3Te2S 
Crystal System
Trigonal 
Crystal Habit
Massive, Aggregates 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
gray white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle 
Hardness
2.5 
Collection
William & Anne Cook Collection
On Dakota Matrix
Previously Sold Sulphotsumoite
On Dakota Matrix
Other Available Sulphotsumoite
WebMineral
View Sulphotsumoite
Mindat
View Sulphotsumoite
Yofortierite - BAC64407
Yofortierite - BAC64407

Yofortierite

#BAC64407
Locality
Mont Saint-Hilaire, Montérégie, Québec, Canada 
Formula
Mn2+5Si8O20(OH)2·8-9H2O 
Availability
Available
Price
$75.00
Size
4 x 4 x 4 cm - Miniature 
Special Info
Type Locality 

Pink fibrous crystals with black Agerine and Natrolite.


Yofortierite

Formula
Mn2+5Si8O20(OH)2·8-9H2O 
Crystal System
Monoclinic 
Crystal Habit
Radial, Acicular 
Color
violet brown, light violet, pink 
Streak
light pink 
Class
Monoclinic - Domatic 
Fracture
Elastic 
Hardness
2.5 
Collection
William & Anne Cook Collection
Special Info
Type Locality
Mineralpedia
View Yofortierite
On Dakota Matrix
Previously Sold Yofortierite
On Dakota Matrix
Other Available Yofortierite
WebMineral
View Yofortierite
Mindat
View Yofortierite

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