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Mixed Minerals

Friday, 04 June 2021 05:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including fluellite, fluorapatite, goethite, hemimorphite, herderite, and hunchunite and more from places like Gold Quarry mine, Eureka Co., Nevada, United States, Panasqueira, Covilha, Castelo Branco dist., Portugal, Pelican Point quarry, Utah Lake, Utah Co., Utah, United States, Sa Duchessa mine, Oridda, Sardinia, Italy, Galiléia, Doce Valley, Minas Gerais, Brazil, and Verkhneivinsk, Middle Urals, Russia.

Fluellite

#BN55893
Locality
Gold Quarry mine, Eureka Co., Nevada, United States 
Formula
Al2(PO4)F2(OH)·7H2
Availability
Sold
Size
6 x 5.5 x 4 cm - Sm Cabinet 
Tagged
phosphate  

Glassy, yellow crystal groups to 6mm. Rich specimen.


Fluellite

Formula
Al2(PO4)F2(OH)·7H2
Crystal System
Orthorhombic 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
golden yellow, colorless, dark purple, black 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Fluellite
On Dakota Matrix
Previously Sold Fluellite
On Dakota Matrix
Other Available Fluellite
WebMineral
View Fluellite
Mindat
View Fluellite

Fluorapatite

#55916
Locality
Panasqueira, Covilha, Castelo Branco dist., Portugal 
Formula
Ca5(PO4)3
Availability
Sold
Size
4.5 x 3.5 x 3 cm - Miniature 
Tagged
phosphate  

Tabular 2-4mm thick, glassy green hexagonal crystals to 1cm wide. These are good. well-defined Fluorapatite crystals,


Fluorapatite

Formula
Ca5(PO4)3
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
blue, brown, colorless, violet, green 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
SOLD
Goethite - WR55883
Goethite - WR55883

Goethite

& Limonite ps after Pyrite - #WR55883
Locality
Pelican Point quarry, Utah Lake, Utah Co., Utah, United States 
Formula
FeO(OH) 
Availability
Sold
Size
3.5 x 2.5 x 2.5 cm - Miniature 

Excellent set of three main Pyrite crystals replaced by limonite, mostly Goethite. There are several other cubic crystals showing good penetration twinniing.


Goethite

Formula
FeO(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Reniform, Radial 
Cleavage
Perfect, Distinct, None 
Luster
Adamantine - Silky 
Color
brown, reddish brown, yellowish brown, brownish yellow, ocher yellow 
Streak
yellowish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Hackly 
Hardness
5-5.5 
Collection
Willard L. Roberts Collection
Mineralpedia
View Goethite
On Dakota Matrix
Previously Sold Goethite
On Dakota Matrix
Other Available Goethite
WebMineral
View Goethite
Mindat
View Goethite

Hemimorphite

#WR55902
Locality
Sa Duchessa mine, Oridda, Sardinia, Italy 
Formula
Zn4Si2O7(OH)2·H2
Availability
Sold
Size
9 x 9 x 6 cm - Sm Cabinet 

Intense botryoidal blue Hemimorphite. Excellent specimen.


Hemimorphite

Formula
Zn4Si2O7(OH)2·H2
Crystal System
Orthorhombic 
Crystal Habit
Massive, Stalactitic, Mammillary 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, greenish gray, yellow brown, white 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal 
Hardness
Collection
Willard L. Roberts Collection

Herderite

#BN55887
Locality
Galiléia, Doce Valley, Minas Gerais, Brazil 
Formula
CaBePO4
Availability
Available
Price
$45.00
Size
4 x 1.2 x 1.5 cm - Miniature 
Tagged
phosphate , beryllium , pegmatite mineral  

Two crystals 8mm and 12mm on matrix. 


Herderite

Formula
CaBePO4
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, greenish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Herderite
On Dakota Matrix
Previously Sold Herderite
On Dakota Matrix
Other Available Herderite
WebMineral
View Herderite
Mindat
View Herderite
SOLD
Hunchunite - 50477
Hunchunite - 50477

Hunchunite

#50477
Locality
Verkhneivinsk, Middle Urals, Russia 
Formula
Au2Pb 
Availability
Sold
Size
Micromount 
Tagged
gold  
Special Info
EDS Confirmed 

Extremely rare speck to 0.25mm on microprobe mount. Identified by Dr. Igor Pekov. Hunchunite is a very rare Gold-Lead mineral.


Hunchunite

Formula
Au2Pb 
Crystal System
Isometric 
Luster
Metallic 
Color
lead gray, silver gray 
Class
Isometric - Hexoctahedral 
Hardness
3.5 
Special Info
EDS Confirmed

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