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Mixed Minerals

Friday, 24 April 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 cinnabar, columbite-(mn), copper, hubnerite, hydroxylherderite and more from places like Mercury mine, Saguache Co., Colorado, United States, Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland, Ray mine, Pinal Co., Arizona, United States, Adams mine, Silverton, San Juan Co., Colorado, United States, Virgem da Lapa, Minas Gerais, Brazil.

Cinnabar

#AH53116
Locality
Mercury mine, Saguache Co., Colorado, United States 
Formula
HgS 
Availability
Available
Price
$30.00
Size
8 x 7.5 x 4 cm - Sm Cabinet 
Tagged
sulfide  

Interesting specimen of supposedly red swirls of Cinnabar in fine quartzite. 


Cinnabar

Formula
HgS 
Crystal System
Trigonal 
Crystal Habit
Druse, Disseminated, Massive 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
lead gray, brown, brown pink, vermilion, gray 
Streak
bright red 
Class
Trigonal - Trapezohedral 
Fracture
Brittle - Sectile 
Hardness
2-2.5 
Collection
Arnold G Hampson Collection
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Columbite-(Mn)

in Montebrasite - #BN53108
Locality
Viitaniemi pegmatite, Eräjärvi area, Orivesi, Etelä-Suomen Lääni, Finland 
Formula
Mn2+Nb2O6 
Availability
Sold
Size
6.5 x 4 x 3.5 cm - Sm Cabinet 

A black Columbite crystal to 1.2cm in white Montebrasite. The old Kidwell labeled had Topaz in association. I believe it to by Quartz.


Columbite-(Mn)

Formula
Mn2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Tabular, Massive 
Cleavage
Distinct, Indistinct, None 
Luster
Sub Metallic 
Color
brownish black, black 
Streak
reddish black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Subconchoidal 
Hardness
Collection
Dr. Buford Nichols Collection

Copper

#AH53123
Locality
Ray mine, Pinal Co., Arizona, United States 
Formula
Cu 
Availability
Sold
Size
9 x 9.5 x 3 cm - Cabinet 
Tagged
native element  

Nice cabinet specimen of Copper showing compact wanna-be cubic crystals. If you look real close, you will the poodle.


Copper

Formula
Cu 
Crystal System
Isometric 
Crystal Habit
Nodular, Arborescent 
Cleavage
None, None, None 
Luster
Metallic 
Color
brown, copper red, light pink, red 
Streak
rose 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
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Hubnerite

#AH53125
Locality
Adams mine, Silverton, San Juan Co., Colorado, United States 
Formula
Mn2+WO4 
Availability
Sold
Size
8 x 8 x 4 cm - Sm Cabinet 

Reddish brown long bladed crystals of Hubnerite to 2.5cm lining drusy quartz cavity. Collected by Hampson in 1960.


Hubnerite

Formula
Mn2+WO4 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Lamellar, Massive - Granular 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
brown, reddish brown, brownish black 
Streak
reddish brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
4.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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Hydroxylherderite

#BN53102
Locality
Virgem da Lapa, Minas Gerais, Brazil 
Formula
CaBePO4(OH) 
Availability
Sold
Size
2 x 2.5 x 2.3 cm - Thumbnail 
Tagged
phosphate , beryllium , pegmatite mineral  

Two to 2.3 fishtail-shaped crystals in nice thumbnail size perky box.


Hydroxylherderite

Formula
CaBePO4(OH) 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
blue, blue green, colorless, greenish white, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
5-5.5 
Collection
Dr. Buford Nichols Collection

Hydroxylherderite

#BN53103
Locality
Virgem da Lapa, Minas Gerais, Brazil 
Formula
CaBePO4(OH) 
Availability
Available
Price
$55.00
Size
3 x 3.3 x 1.5 cm - Miniature 
Tagged
phosphate , beryllium , pegmatite mineral  

A single, large, possibly twinned Hydroxylherderite. It is more grey, not pink like shown in the photos. It's a good crystal showing all faces except for detachment at the base.


Hydroxylherderite

Formula
CaBePO4(OH) 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
blue, blue green, colorless, greenish white, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
5-5.5 
Collection
Dr. Buford Nichols Collection

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