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Mixed Rare Minerals

Saturday, 07 May 2022 12:00 PM

Introducing the "Mixed Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including pseudomalachite, pyroxmangite, roselite, silver, spinel, and spodumene and more from places like Erl, Kasbach-Ohlenberg, Linz am Rhein, Rhineland-Palatinate, Germany, Taguchi mine, Aichi, Chubu, Honshu Island, Japan, Bou Azzer dist., Anti-Atlas, Morocco, Kongsberg dist., Buskerud, Norway, Monte Somma, Vesuvius, Campania, Italy, and Minas Gerais, Brazil.

Pseudomalachite

with Copper - #RS58168
Locality
Erl, Kasbach-Ohlenberg, Linz am Rhein, Rhineland-Palatinate, Germany 
Formula
Cu5(PO4)2(OH)4 
Availability
Available
Price
$85.00
Size
8.5 x 4 x 5 cm - Sm Cabinet 
Tagged
phosphate , copper  

A great locality specimen of pseudomalachite in a large 3.5cm cavity in Quartz. Interesting that there are Copper crystals at the center of the specimen.


Pseudomalachite

Formula
Cu5(PO4)2(OH)4 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Massive, Stalactitic 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Greasy 
Color
blue green, green, dark green, black green 
Streak
bluish green 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
4-5 
Collection
RC Stamberg Collection

Pyroxmangite

#RS58406
Locality
Taguchi mine, Aichi, Chubu, Honshu Island, Japan 
Formula
Mn2+SiO3 
Availability
Sold
Size
3 x 3 x 1.5 cm - Thumbnail 

Excellent cherry red crystals to 2mm. Great specimen of a mineral that is seldom in nice euhedral crystals such as this one.


Pyroxmangite

Formula
Mn2+SiO3 
Crystal System
Triclinic 
Crystal Habit
Massive, Massive - Granular 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous - Pearly 
Color
pink, rose pink, purplish pink, yellowish red brown, brown 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
5.5-6 
Collection
RC Stamberg Collection

Roselite

with Talmessite - #58209
Locality
Bou Azzer dist., Anti-Atlas, Morocco 
Formula
Ca2Co(AsO4)2·2H2
Availability
Sold
Size
6.5 x 4 x 4 cm - Sm Cabinet 
Tagged
arsenate  

Purplish red, platy crystals of cobaltoan Talmessite preferentially oriented upon deep cherry red Roselite crystals to 2mm. Minor Cobaltaustinite. All on pink Dolomite. Very nice specimen.


Roselite

Formula
Ca2Co(AsO4)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Mammillary, Spherical, Druse 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
dark rose red, pink 
Streak
light red 
Class
Monoclinic - Prismatic 
Hardness
3.5 
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Silver

#58432
Locality
Kongsberg dist., Buskerud, Norway 
Formula
Ag 
Availability
Available
Price
$295.00
Size
6 x 5 x 3 cm - Sm Cabinet 
Tagged
native element  

An awesome specimen with two groups of Silver crystals. The longest is 3cm and the other is a group 1.3cm across.


Silver

Formula
Ag 
Crystal System
Isometric 
Crystal Habit
Arborescent, Dendritic, Massive 
Cleavage
None, None, None 
Luster
Metallic 
Color
silver white, gray white, gray 
Streak
silver white 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
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Spinel

var. pleonaste - #58433
Locality
Monte Somma, Vesuvius, Campania, Italy 
Formula
MgAl2O4 
Availability
Available
Price
$45.00
Size
9 x 7 x 4 cm - Sm Cabinet 

An antique specimen with an old handwritten label on the backside. It is a very rich specimen full of octahedral, black Spinel, variety pleonaste, crysatls to 1mm.


Spinel

Formula
MgAl2O4 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Massive - Granular 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, red, blue, green, brown 
Streak
grayish white 
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
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Spodumene

var. kunzite - #RS58425
Locality
Minas Gerais, Brazil 
Formula
LiAlSi2O6 
Availability
Sold
Size
4.8 x 1.4 x 1.3 cm - Miniature 
Tagged
pegmatite mineral  

Gemmy light purple dichroic, gemmy etched kunzite, a variety of Spodumene.


Spodumene

Formula
LiAlSi2O6 
Crystal System
Monoclinic 
Crystal Habit
Bladed, Prismatic 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
grayish white, pink, violet, emerald green, yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Splintery 
Hardness
6.5-7 
Collection
RC Stamberg Collection
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