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Mixed Rare and FIne Minerals

Sunday, 25 April 2021 07:00 PM

Introducing the "Mixed Rare and FIne Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including crocoite, dawsonite, eglestonite, emmonsite, epidote, and francevillite and more from places like Dundas, Zeehan, Tasmania, Australia, Limoncino, Livorno, Livorno Prov., Tuscany, Italy, Cahill mine, Humboldt Co., Nevada, United States, Bambolla mine, Moctezuma, Sonora, Mexico, Guadualupe Island, Baja California, Mexico, and Mounana mine, Franceville, Haut-Ogooué, Gabon.

Crocoite

#AH55670
Locality
Dundas, Zeehan, Tasmania, Australia 
Formula
PbCrO4 
Availability
Sold
Size
3.5 x 2.5 x 2.5 cm - Miniature 

Bright red, lustrous prismatic crystals to 6mm. Very stunning specimen.


Crocoite

Formula
PbCrO4 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Acicular 
Cleavage
Distinct, Indistinct, Indistinct 
Luster
Adamantine 
Color
yellow, orange, red, red orange 
Streak
yellowish orange 
Class
Monoclinic - Prismatic 
Fracture
Sectile 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection
Mineralpedia
View Crocoite
On Dakota Matrix
Previously Sold Crocoite
On Dakota Matrix
Other Available Crocoite
WebMineral
View Crocoite
Mindat
View Crocoite

Dawsonite

#BN55625
Locality
Limoncino, Livorno, Livorno Prov., Tuscany, Italy 
Formula
NaAlCO3(OH)2 
Availability
Sold
Size
9.5 x 9.5 x 2 cm - Cabinet 
Tagged
carbonate  

Large plate filled with 1.5 to 2mm radial sprays of white Dawsonite. Excellent specimen. This specimen was once in the Dr. Al Kidwell and Art Smith collection.


Dawsonite

Formula
NaAlCO3(OH)2 
Crystal System
Orthorhombic 
Crystal Habit
Radial, Acicular, Encrustations 
Cleavage
Perfect, None, None 
Luster
Vitreous - Silky 
Color
colorless, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Dawsonite
On Dakota Matrix
Previously Sold Dawsonite
On Dakota Matrix
Other Available Dawsonite
WebMineral
View Dawsonite
Mindat
View Dawsonite
SOLD
Eglestonite - 47911
Eglestonite - 47911

Eglestonite

with Cinnabar - #47911
Locality
Cahill mine, Humboldt Co., Nevada, United States 
Formula
Hg1+6OCl3(OH) 
Availability
Sold
Size
8 x 5 x 4.5 cm - Sm Cabinet 

Green to yellow waxy crusts in an area of about 19 x 6mm. It is associated with massive Cinnabar.


Eglestonite

Formula
Hg1+6OCl3(OH) 
Crystal System
Isometric 
Cleavage
None, None, None 
Luster
Adamantine - Resinous 
Color
brown, brownish yellow, yellow, dark brown, orange 
Streak
light yellow 
Class
Isometric - Hexoctahedral 
Fracture
Brittle - Conchoidal 
Hardness
2-3 

Emmonsite

#55612
Locality
Bambolla mine, Moctezuma, Sonora, Mexico 
Formula
Fe3+2(Te4+O3)3·2H2
Availability
Sold
Size
4 x 3 x 1.5 cm - Miniature 
Tagged
tellurium  

Green worm like crystals in groupd to 2mm.


Emmonsite

Formula
Fe3+2(Te4+O3)3·2H2
Crystal System
Triclinic 
Crystal Habit
Mammillary 
Cleavage
Perfect, None, None 
Luster
Vitreous - Dull 
Color
yellow, greenish yellow 
Class
Triclinic - Pinacoidal 
Hardness
2-2.5 
Mineralpedia
View Emmonsite
On Dakota Matrix
Previously Sold Emmonsite
On Dakota Matrix
Other Available Emmonsite
WebMineral
View Emmonsite
Mindat
View Emmonsite

Epidote

#55677
Locality
Guadualupe Island, Baja California, Mexico 
Formula
Ca2Fe3+Al2(Si2O7)(SiO4)O(OH) 
Availability
Sold
Size
6.5 x 6.5 x 4 cm - Sm Cabinet 

Flashy and very lustrous crystals to 7mm. If you look closely at the crystals, the edges look chipped and broken. They are most definitely not. In between some of the crystals is a fine grained rock in which these crystal have grown. The edges of the crystals look chipped because this fine grained stuff was removed. In-hand, this is a fine specimen.


Epidote

Formula
Ca2Fe3+Al2(Si2O7)(SiO4)O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Fibrous, Massive 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
yellowish green, brownish green, black, yellow, gray 
Streak
grayish white 
Class
Monoclinic - Prismatic 
Fracture
Regular 
Hardness
Mineralpedia
View Epidote
On Dakota Matrix
Previously Sold Epidote
On Dakota Matrix
Other Available Epidote
WebMineral
View Epidote
Mindat
View Epidote

Francevillite

#55687
Locality
Mounana mine, Franceville, Haut-Ogooué, Gabon 
Formula
Ba(UO2)2(VO4)2·5H2
Availability
Sold
Size
7 x 5 x 5 cm - Sm Cabinet 
Tagged
vanadium  
Special Info
Radioactive!! 
Special Info
Type Locality 

Excellent older specimen with radial yellow-orange groups of Francevillite to 8mm.


Francevillite

Formula
Ba(UO2)2(VO4)2·5H2
Crystal System
Orthorhombic 
Cleavage
Perfect, None, None 
Luster
Adamantine - Pearly 
Color
brownish yellow, yellow, yellow green 
Streak
light yellow 
Class
Orthorhombic - Dipyramidal 
Hardness
Collection
Don Phillips Collection
Special Info
Radioactive!!
Special Info
Type Locality

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