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Recently Released New Additions

Rare & Systematic Minerals

Sunday, 30 April 2023 06:00 PM

Introducing the "Rare & Systematic Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including bystrite, capgaronnite, hainite-(y), kingite, oneillite, and panasqueiraite and more from places like Malaya Bystraya deposit, Tunka Valley, Baikal area, Siberia, Russia, Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France, Bortolan quarry, Poços de Caldas, Minas Gerais, Brazil, Tom's Phosphate quarry, Kapunda, South Australia, Australia, Norra Kärr, Gränna, Jönköping, Småland, Sweden, and Panasqueira, Covilha, Castelo Branco dist., Portugal.

SOLD
Bystrite - BAC61527
Bystrite - BAC61527

Bystrite

with Lazurite - #BAC61527
Locality
Malaya Bystraya deposit, Tunka Valley, Baikal area, Siberia, Russia 
Formula
(Na,K,Ca)8(Si6Al6)O24S1.5·H2O 
Availability
Sold
Size
4 x 1.5 x 1 cm - Miniature 
Special Info
Type & Only Locality 

Yellow anhedral crystal grains of Bystrite, the chloride analogue of Sulfhydrylbystrite and a rare member of the Cancrinite group. It is associated with deep blue Lazurite. It is sawed on one side probably for analytical purposes. Very nice and colorful specimen of this rare species found only at this locality. You probably won't see another one of these. 


Bystrite

Formula
(Na,K,Ca)8(Si6Al6)O24S1.5·H2O 
Crystal System
Trigonal 
Crystal Habit
Tabular, Irregular Grains 
Cleavage
Good, Poor, None 
Luster
Vitreous (Glassy) 
Color
yellow 
Streak
light yellow 
Class
Trigonal - Ditrigonal Pyramidal 
Hardness
5 
Collection
William & Anne Cook Collection
Special Info
Type & Only Locality
Mineralpedia
View Bystrite
On Dakota Matrix
Previously Sold Bystrite
On Dakota Matrix
Other Available Bystrite
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Mindat
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Capgaronnite - BAC61557
Capgaronnite - BAC61557

Capgaronnite

#BAC61557
Locality
Cap Garonne Mine, Le Pradet, Var, Provence-Alpes-Côte d'Azur, France 
Formula
AgHgClS 
Availability
Available
Price
$275.00
Size
0.8 x 0.6 x 0.5 cm - Thumbnail 
Tagged
silver  
Special Info
Type Locality 

An exceptional spray of very rare Capgaronnite to about 0.5mm tucked away nicely in a tiny vug.


Capgaronnite

Formula
AgHgClS 
Crystal System
Orthorhombic 
Cleavage
Perfect, None, None 
Luster
Subadamantine 
Color
brownish black, black 
Streak
brownish black 
Class
Orthorhombic - Disphenoidal 
Hardness
- 
Collection
William & Anne Cook Collection
Special Info
Type Locality
Mineralpedia
View Capgaronnite
On Dakota Matrix
Previously Sold Capgaronnite
On Dakota Matrix
Other Available Capgaronnite
WebMineral
View Capgaronnite
Mindat
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Hainite-(Y) - BAC61567
Hainite-(Y) - BAC61567

Hainite-(Y)

#BAC61567
Locality
Bortolan quarry, Poços de Caldas, Minas Gerais, Brazil 
Formula
Na(Na,Ca)2Ca2(Ca,Zr,Y)2Ti(Si2O7)2F2F2 
Availability
Available
Price
$95.00
Size
3.5 x 2.3 x 3 cm - Miniature 
Tagged
REE mineral  

Tannish acicular, kind of fibrous crystals to 6mm. Fairy rare.


Collection
William & Anne Cook Collection
On Dakota Matrix
Previously Sold Hainite-(Y)
On Dakota Matrix
Other Available Hainite-(Y)
WebMineral
View Hainite-(Y)
Mindat
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Kingite - 61371
Kingite - 61371

Kingite

#61371
Locality
Tom's Phosphate quarry, Kapunda, South Australia, Australia 
Formula
Al3(PO4)2F2(OH)·7H2O 
Availability
Available
Price
$30.00
Size
3.5 x 2.5 x 2.5 cm - Miniature 
Tagged
phosphate  

Chalky white nodule.


Kingite

Formula
Al3(PO4)2F2(OH)·7H2O 
Crystal System
Triclinic 
Crystal Habit
Platy, Irregular Grains, Nodular 
Color
white 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
- 
Mineralpedia
View Kingite
On Dakota Matrix
Previously Sold Kingite
On Dakota Matrix
Other Available Kingite
WebMineral
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Mindat
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SOLD
Oneillite - BAC61529
Oneillite - BAC61529

Oneillite

#BAC61529
Locality
Norra Kärr, Gränna, Jönköping, Småland, Sweden 
Formula
Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 
Availability
Sold
Size
2.3 x 1.1 x 0.7 cm - Thumbnail 

Orange-red crystalline grains.


Oneillite

Formula
Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 
Crystal System
Trigonal 
Crystal Habit
Anhedral Grains 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
yellowish brown 
Streak
white 
Class
Trigonal - Pyramidal 
Fracture
Brittle - Uneven 
Hardness
5-6 
Collection
William & Anne Cook Collection
Mineralpedia
View Oneillite
On Dakota Matrix
Previously Sold Oneillite
On Dakota Matrix
Other Available Oneillite
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Mindat
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Panasqueiraite - BAC61513
Panasqueiraite - BAC61513

Panasqueiraite

with Arsenopyrite - #BAC61513
Locality
Panasqueira, Covilha, Castelo Branco dist., Portugal 
Formula
CaMgPO4(OH) 
Availability
Available
Price
$55.00
Size
5.5 x 3 x 1 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

Flesh colored Panasqueiraite, a rare Ca-Mg phosphate found only in Portugal. It is associated with Arsenopyrite and Quartz. The specimen is repaired along a Quartz fractured.


Panasqueiraite

Formula
CaMgPO4(OH) 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Silky - Pearly 
Color
white, pink 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
5 
Collection
William & Anne Cook Collection
Special Info
Type Locality
Mineralpedia
View Panasqueiraite
On Dakota Matrix
Previously Sold Panasqueiraite
On Dakota Matrix
Other Available Panasqueiraite
WebMineral
View Panasqueiraite
Mindat
View Panasqueiraite

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