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 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 pillaite, sarkinite, and segnitite and more from places like Buca della Vena mine, Apuan Alps, Lucca prov., Tuscany, Italy, Långban, Filipstad, Värmland, Sweden, and San Nicolás mine, Valle de la Serena, Badajoz, Spain.

SOLD
Pillaite - BAC62807
Pillaite - BAC62807

Pillaite

#BAC62807
Locality
Buca della Vena mine, Apuan Alps, Lucca prov., Tuscany, Italy 
Formula
Pb9Sb10S23ClO0.5 
Availability
Sold
Size
0.9 x 1.2 x 0.5 cm - Thumbnail 
Special Info
Type Locality 

Slender acicular crystals to about 1mm.


Pillaite

Formula
Pb9Sb10S23ClO0.5 
Crystal System
Monoclinic 
Crystal Habit
Acicular 
Cleavage
None, None, None 
Luster
Metallic 
Color
black 
Streak
brownish black 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Irregular 
Hardness
3-4 
Collection
William & Anne Cook Collection
Special Info
Type Locality
On Dakota Matrix
Previously Sold Pillaite
On Dakota Matrix
Other Available Pillaite
WebMineral
View Pillaite
Mindat
View Pillaite
SOLD
Sarkinite - CL62770
Sarkinite - CL62770

Sarkinite

#CL62770
Locality
Långban, Filipstad, Värmland, Sweden 
Formula
Mn2+2(AsO4)(OH) 
Availability
Sold
Size
6 x 4 x 3 cm - Sm Cabinet 
Tagged
arsenate  

Granular pink Sarkinite pervasice through matrix. Excellent specimen.


Sarkinite

Formula
Mn2+2(AsO4)(OH) 
Crystal System
Monoclinic 
Crystal Habit
Tabular 
Cleavage
Distinct, None, None 
Luster
Greasy (Oily) 
Color
yellow, dark red, reddish yellow 
Streak
yellow 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal - Uneven 
Hardness
4-5 
Collection
Chet S. Lemanski, Jr. Collection
Mineralpedia
View Sarkinite
On Dakota Matrix
Previously Sold Sarkinite
On Dakota Matrix
Other Available Sarkinite
WebMineral
View Sarkinite
Mindat
View Sarkinite
Segnitite - BAC62810
Segnitite - BAC62810

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
4 
Collection
William & Anne Cook Collection
Mineralpedia
View Segnitite
On Dakota Matrix
Previously Sold Segnitite
On Dakota Matrix
Other Available Segnitite
WebMineral
View Segnitite
Mindat
View Segnitite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2023 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map