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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 capgaronnite, hainite-(y), kingite, panasqueiraite, parapierrotite, and paraschachnerite and more from places like 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, Panasqueira, Covilha, Castelo Branco dist., Portugal, Allchar, Roszdan, Macedonia, and Bambollita mine, Moctezuma, Sonora, Mexico.

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

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

Kingite

#61371
Locality
Tom's Phosphate quarry, Kapunda, South Australia, Australia 
Formula
Al3(PO4)2F2(OH)·7H2
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)·7H2
Crystal System
Triclinic 
Crystal Habit
Platy, Irregular Grains, Nodular 
Color
white 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
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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
Collection
William & Anne Cook Collection
Special Info
Type Locality

Parapierrotite

#BAC61526
Locality
Allchar, Roszdan, Macedonia 
Formula
TlSb5S8 
Availability
Available
Price
$55.00
Size
1.5 x 1 x 0.5 cm - Thumbnail 
Tagged
sulfide  
Special Info
Type Locality 
Special Info
XRD Confirmed 

A 1mm black grain in Realgar matrix. XRD


Parapierrotite

Formula
TlSb5S8 
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
None, None, None 
Luster
Sub Metallic 
Color
black 
Streak
gray 
Class
Monoclinic - Prismatic 
Hardness
2.5-3 
Special Info
Type Locality
Special Info
XRD Confirmed

Paraschachnerite

with Tlalocite - #BAC61525
Locality
Bambollita mine, Moctezuma, Sonora, Mexico 
Formula
Ag1.2Hg0.8 
Availability
Available
Price
$175.00
Size
3 x 1.5 x 1.2 cm - Thumbnail 
Tagged
silver  

Black grains of Paraschachnerite with pastel green Tlalocite.


Paraschachnerite

Formula
Ag1.2Hg0.8 
Crystal System
Orthorhombic 
Crystal Habit
Twinning Common 
Luster
Metallic 
Color
tin white 
Streak
metallic 
Class
Orthorhombic - Dipyramidal 
Hardness
Collection
William & Anne Cook Collection

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