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Rare and Fine Minerals

Friday, 03 August 2018 06:00 PM

Introducing the "Rare and Fine Minerals " gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including adamite, beryllonite, biphosphammite, carnotite, chalcopyrite, and covellite and more from places like San Rafael mine, Nye Co., Nevada, United States, Linopolis, Divino das Larajeiras, Minas Gerais, Brazil, Murra-el-elevyn Cave, Cocklebiddy, Western Australia, Australia, Mrak mine, Converse Co., Wyoming, United States, Continental mine, Fierro dist., Grant Co., New Mexico, United States, and Leonard mine, Butte dist., Silver Bow Co., Montana, United States.

Adamite

on Segnitite - #49609
Locality
San Rafael mine, Nye Co., Nevada, United States 
Formula
Zn2AsO4(OH) 
Availability
Available
Price
$75.00
Size
6.5 x 4 x 4 cm - Sm Cabinet 
Tagged
arsenate  

Green cuprian Adamite crystals in two generations: in tiny prismatic crystals less than 0.3mm and as "larger"  single crystals to about 0.75mm. The base is yellow Segnitite. 


Adamite

Formula
Zn2AsO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Druse, Encrustations 
Cleavage
One Good 
Luster
Vitreous - Resinous 
Color
yellow, green, violet, pink, yellowish green 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3.5 
Mineralpedia
View Adamite
On Dakota Matrix
Previously Sold Adamite
On Dakota Matrix
Other Available Adamite
WebMineral
View Adamite
Mindat
View Adamite
SOLD
Beryllonite - BN49614
Beryllonite - BN49614

Beryllonite

#BN49614
Locality
Linopolis, Divino das Larajeiras, Minas Gerais, Brazil 
Formula
NaBePO4 
Availability
Sold
Size
1.1 x 0.7 x 0.2 cm - Thumbnail 
Tagged
phosphate , beryllium , pegmatite mineral  

A waterclear tabular crystal of rare Beryllonite to 1.1cm showing good excellent crystal faces on the pinacoids and along the edges.


Beryllonite

Formula
NaBePO4 
Crystal System
Monoclinic 
Cleavage
Perfect, Good, Perfect 
Luster
Vitreous - Pearly 
Color
colorless, white, light yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
5.5-6 
Collection
Dr. Buford Nichols Collection
SOLD
Biphosphammite - BN49616
Biphosphammite - BN49616

Biphosphammite

#BN49616
Locality
Murra-el-elevyn Cave, Cocklebiddy, Western Australia, Australia 
Formula
H2(NH4)PO4 
Availability
Sold
Size
4 x 2.5 x 0.5 cm - Miniature 
Tagged
phosphate  
Special Info
Type Locality 

Dull earthy ugly mass of bat gauno turned mineral. Ex. Parnau and Mineralogical Research specimen. 


Biphosphammite

Formula
H2(NH4)PO4 
Crystal System
Tetragonal 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, gray white 
Streak
white 
Class
Tetragonal - Scalenohedral 
Hardness
1-2 
Collection
Dr. Buford Nichols Collection
Special Info
Type Locality

Carnotite

#BN49607
Locality
Mrak mine, Converse Co., Wyoming, United States 
Formula
K2(UO2)2(VO4)2·3H2
Availability
Available
Price
$25.00
Size
4.5 x 2.5 x 2 cm - Miniature 
Tagged
vanadium  

Yellow powdery Carnotite in sandstone. 


Carnotite

Formula
K2(UO2)2(VO4)2·3H2
Crystal System
Monoclinic 
Crystal Habit
Earthy, Encrustations, Platy 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
yellow, golden yellow, greenish yellow 
Streak
light yellow 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Dr. Buford Nichols Collection

Chalcopyrite

with Magnetite - #RW49604
Locality
Continental mine, Fierro dist., Grant Co., New Mexico, United States 
Formula
Cu1+Fe3+S2 
Availability
Sold
Size
10.5 x 5 x 4 cm - Cabinet 
Tagged
sulfide , copper , ore specimen  

Golden iridescent Chalcopyrite chunk with black Magnetite. An ore specimen.


Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 
Collection
Robert J. Waidler Collection

Covellite

#RW49603
Locality
Leonard mine, Butte dist., Silver Bow Co., Montana, United States 
Formula
CuS 
Availability
Available
Price
$275.00
Size
9.5 x 8 x 5 cm - Cabinet 
Tagged
sulfide , copper , ore specimen  

Large crystalline mass of Covellite with purple hues and slight alterations. Excellent specimen and very rich with associated Pyrite. 

May cost extra to ship outside of the USA.


Covellite

Formula
CuS 
Crystal System
Hexagonal 
Crystal Habit
Platy, Foliated 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
indigo blue, light blue, dark blue, black 
Streak
black gray 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle 
Hardness
1.5-2 
Collection
Robert J. Waidler Collection
Mineralpedia
View Covellite
On Dakota Matrix
Previously Sold Covellite
On Dakota Matrix
Other Available Covellite
WebMineral
View Covellite
Mindat
View Covellite

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