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
0 item @ $0.00  

Mixed Minerals

Friday, 05 June 2020 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including avogadrite, baryte, chrysoberyl, clinozoisite, euclase, and ferrimolybdite and more from places like Vulcano Island, Sicily, Italy, near Norman, Cleveland Co., Oklahoma, United States, Colatina, Espírito Santo, Brazil, Cornog, Chester Co., Pennsylvania, United States, Santana do Encoberto, Maranh�o, Minas Gerais, Brazil, and Little Cottonwood Canyon, Salt Lake Co., Utah, United States.

Avogadrite

#AH53465
Locality
Vulcano Island, Sicily, Italy 
Formula
KBF4 
Availability
Sold
Size
5 x 1.5 x 1.5 cm - Miniature 

Yellow grains of rare Avodadrite in vial.


Avogadrite

Formula
KBF4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular 
Luster
Vitreous - Greasy 
Color
colorless, white, yellowish, reddish 
Streak
colorless 
Class
Orthorhombic - Dipyramidal 
Hardness
Collection
Arnold G Hampson Collection

Baryte

rose - #48538
Locality
near Norman, Cleveland Co., Oklahoma, United States 
Formula
BaSO4 
Availability
Sold
Size
9.5 x 9.5 x 8 cm - Cabinet 

An American Classic mineral locality: Baryte rose from Dr. David London's collection. London wrote a great article on this occurence in the July/August 2008 issue of the Mineralogical Record. This specimen features a cluster of three Baryte roses each  6cm wide. Excellent specimen from this unique occurence. 

The locality is long shut down and private residence.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Mineralpedia
View Baryte
On Dakota Matrix
Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
WebMineral
View Baryte
Mindat
View Baryte

Chrysoberyl

#WR53462
Locality
Colatina, Espírito Santo, Brazil 
Formula
BeAl2O4 
Availability
Sold
Size
2.4 x 2.5 x 1.6 cm - Thumbnail 
Tagged
beryllium , pegmatite mineral  

Classic cyclical Chrysoberyl crystal with olive green color.


Chrysoberyl

Formula
BeAl2O4 
Crystal System
Orthorhombic 
Crystal Habit
Twinning Common, Prismatic, Tabular 
Cleavage
Distinct, Imperfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
blue green, brown, brownish green, green, gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
8.5 
Collection
Willard L. Roberts Collection

Clinozoisite

#AH53447
Locality
Cornog, Chester Co., Pennsylvania, United States 
Formula
Ca2Al3(Si2O7)(SiO4)O(OH) 
Availability
Available
Price
$40.00
Size
6 x 6 x 4 cm - Sm Cabinet 

Blades of lustrous green Clinozoisite to over 2cm.


Clinozoisite

Formula
Ca2Al3(Si2O7)(SiO4)O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Massive - Granular, Fibrous 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, green, gray, yellow green, light yellow 
Streak
grayish white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection

Euclase

with Muscovite - #WR53455
Locality
Santana do Encoberto, Maranh�o, Minas Gerais, Brazil 
Formula
BeAlSiO4(OH) 
Availability
Sold
Size
4.5 x 3.5 x 2.5 cm - Miniature 
Tagged
beryllium , pegmatite mineral  

Fine 1cm colorless and striated Euclase crystals with a few smaller associated with Albite and Muscovite.


Euclase

Formula
BeAlSiO4(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Massive - Fibrous, Striated 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
blue, colorless, white, light blue, light green 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
7.5 
Collection
Willard L. Roberts Collection
Mineralpedia
View Euclase
On Dakota Matrix
Previously Sold Euclase
On Dakota Matrix
Other Available Euclase
WebMineral
View Euclase
Mindat
View Euclase

Ferrimolybdite

with Molybdenite - #AH53446
Locality
Little Cottonwood Canyon, Salt Lake Co., Utah, United States 
Formula
Fe3+2(Mo6+O4)3·7H2
Availability
Sold
Size
8 x 6 x 4 cm - Sm Cabinet 

Rich Molybdenite specimen with alteration of yellow Ferrimolybdite. Acquired by Hampson in 1945.


Ferrimolybdite

Formula
Fe3+2(Mo6+O4)3·7H2
Crystal System
Orthorhombic 
Crystal Habit
Earthy, Scaly, Fibrous 
Cleavage
Distinct, None, None 
Luster
Silky 
Color
yellow, canary yellow, sulfur yellow 
Streak
light yellow 
Class
Orthorhombic 
Fracture
Uneven 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2020 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map