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Mixed Minerals

Sunday, 23 October 2022 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including calcite, cavansite, galena, malachite, rhodochrosite, and scapolite and more from places like Kolwezi, Shaba Cu belt, Democratic Republic of Congo, Wagholi, near Pune, Maharashtra, India, Dal'negorsk, Primorsky Kray, Russia, Capillitas mine, Andalgalá, Catamarca, Argentina, and Badakshan, Afghanistan.

Calcite

(cobaltoan) - #59414
Locality
Kolwezi, Shaba Cu belt, Democratic Republic of Congo 
Formula
CaCO3 
Availability
Available
Price
$150.00
Size
9 x 7 x 4.5 cm - Sm Cabinet 
Tagged
carbonate  

Deep magenta color cobaltoan Calcite with crystals to 4mm.


Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Chris Schmitz Collection
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Cavansite

#59399
Locality
Wagholi, near Pune, Maharashtra, India 
Formula
Ca(V4+O)Si4O10·4H2
Availability
Available
Price
$250.00
Size
6 x 5 x 4 cm - Sm Cabinet 
Tagged
vanadium  

Neon blue radiating Cavansite crystals 1cm across. Beautiful piece!


Cavansite

Formula
Ca(V4+O)Si4O10·4H2
Crystal System
Orthorhombic 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
greenish blue, dark blue 
Streak
bluish white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
3-4 
Collection
Chris Schmitz Collection
Mineralpedia
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Galena

with Quartz - #59405
Locality
Dal'negorsk, Primorsky Kray, Russia 
Formula
PbS 
Availability
Available
Price
$125.00
Size
11 x 4.5 x 5 cm - Cabinet 
Tagged
sulfide  

Dal'negorsk mineral specimens seem to be dewindling at the shows these days. So you might want to consider this specimen. It features very well-formed cubo-octahedral crystals of Galena to 1.5cm and Quartz crystals to 2cm. 


Galena

Formula
PbS 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Massive - Granular, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Metallic 
Color
light lead gray, dark lead gray 
Streak
grayish black 
Class
Isometric - Hexoctahedral 
Fracture
Brittle 
Hardness
2.5 
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Malachite

#59415
Locality
Kolwezi, Shaba Cu belt, Democratic Republic of Congo 
Formula
Cu2CO3(OH)2 
Availability
Available
Price
$150.00
Size
7 x 10 x 6 cm - Cabinet 
Tagged
carbonate , copper  

Stalactitic sparkly to dull deep green Malachite. The "fingers" reach 5 to 5.5cm. One of the fingers was popped off, but shows the nice concentric nature of the Malachite growth.


Malachite

Formula
Cu2CO3(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Stalactitic, Massive - Fibrous 
Cleavage
Perfect, Fair, None 
Luster
Vitreous - Silky 
Color
green, dark green, blackish green 
Streak
light green 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5-4 
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Rhodochrosite

#CS59393
Locality
Capillitas mine, Andalgalá, Catamarca, Argentina 
Formula
MnCO3 
Availability
Available
Price
$175.00
Size
6.3 x 3.7 x 0.5 cm - Sm Cabinet 
Tagged
carbonate  

A slab of concentric layers of crystallized Rhodochrosite. It is polished on one side.


Rhodochrosite

Formula
MnCO3 
Crystal System
Trigonal 
Crystal Habit
Massive - Granular, Columnar, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
pinkish red, red, rose red, yellowish gray, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Chris Schmitz Collection

Scapolite

#CS59407
Locality
Badakshan, Afghanistan 
Formula
Na4Al3Si9O24Cl to Ca4Al6Si6O24CO3 
Availability
Available
Price
$195.00
Size
4 x 3 x 3 cm - Miniature 

Purple Scapolite, terminated, partial crystal with a bit of scoffing along the edges. 


Scapolite

Formula
(Na,Ca)4[(Al,Si)12O24]Cl 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Prismatic 
Cleavage
Distinct, Distinct, None 
Luster
Vitreous (Glassy) 
Color
white, gray, pale brown, pink, yellow 
Streak
white 
Class
Tetragonal - Dipyramidal 
Fracture
Splintery 
Hardness
Collection
Chris Schmitz Collection
Mineralpedia
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Previously Sold Scapolite
On Dakota Matrix
Other Available Scapolite
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