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Rare & Mixed Minerals

Thursday, 16 June 2022 06:00 PM

Introducing the "Rare & Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including nickenichite, niocalite, pascoite, roquesite, schairerite, and segelerite and more from places like Tolbachik Volcano, Kamchatka, Russia, Oka complex, Oka, Laurentides, Quebec, Canada, Yellow Cat dist., Grand Co., Utah, United States, Les Clochettes mine, Hautes-Alpes, France, Searless Lake, San Bernardino Co., California, United States, and Tip Top mine, Custer Co., South Dakota, United States.

Nickenichite

#57801
Locality
Tolbachik Volcano, Kamchatka, Russia 
Formula
(Na,Ca,Cu)1.6(Mg,Fe3+,Al)3(AsO4)3 
Availability
Sold
Size
4.2 x 3.2 x 2.5 cm - Miniature 
Tagged
arsenate , copper  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Nickenichite is named for the village of Nickenich, Germany and nearby the Nickenicher Sattel volcano. At this locality, it also occurs in volcanic fumarole rich in vanadium vapors. This specimen contains, beautiful deep azure blue micro crystals to about 1mm. This is the second worldwide occurence of this rare arsenate far superior to the type locality.  It is verified by Dr. Igor Pekov.

The exact locality is: Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption (Main Fracture), Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia


Nickenichite

Formula
(Na,Ca,Cu)1.6(Mg,Fe3+,Al)3(AsO4)3 
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
Perfect, Good, Good 
Luster
Vitreous (Glassy) 
Color
greenish blue, light blue 
Class
Monoclinic - Prismatic 
Hardness
Special Info
XRD Confirmed
Special Info
EDS Confirmed
SOLD
Niocalite - RS58582
Niocalite - RS58582

Niocalite

with Latrappite - #RS58582
Locality
Oka complex, Oka, Laurentides, Quebec, Canada 
Formula
Ca7Nb(Si2O7)2O3
Availability
Sold
Size
4.6 x 4 x 2.8 cm - Miniature 
Special Info
Type Locality 

Honey yellow crystals of Niocalite to 4mm with vireous black Latrappite. 


Niocalite

Formula
Ca7Nb(Si2O7)2O3
Crystal System
Monoclinic 
Crystal Habit
Square 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
light yellow 
Streak
white 
Class
Monoclinic - Domatic 
Fracture
Brittle - Conchoidal 
Hardness
Collection
RC Stamberg Collection
Special Info
Type Locality
Mineralpedia
View Niocalite
On Dakota Matrix
Previously Sold Niocalite
On Dakota Matrix
Other Available Niocalite
WebMineral
View Niocalite
Mindat
View Niocalite
SOLD
Pascoite - RS58585
Pascoite - RS58585

Pascoite

#RS58585
Locality
Yellow Cat dist., Grand Co., Utah, United States 
Formula
Ca3V5+10O28·17H2
Availability
Sold
Size
5 x 3 x 1.4 cm - Miniature 
Tagged
vanadium  

Bright orange micro crystals across face.


Pascoite

Formula
Ca3V5+10O28·17H2
Crystal System
Monoclinic 
Crystal Habit
Granular, Encrustations 
Cleavage
Distinct, None, None 
Luster
Vitreous - Adamantine 
Color
yellow brown, yellow orange, red orange 
Streak
yellow 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5 
Collection
RC Stamberg Collection
Mineralpedia
View Pascoite
On Dakota Matrix
Previously Sold Pascoite
On Dakota Matrix
Other Available Pascoite
WebMineral
View Pascoite
Mindat
View Pascoite

Roquesite

in Bornite - #57669
Locality
Les Clochettes mine, Hautes-Alpes, France 
Formula
CuInS2 
Availability
Sold
Size
2.1 x 1.5 x 0.4 cm - Thumbnail 
Tagged
sulfide , copper  
Special Info
EDS Confirmed 

Grey grains less than 1mm with Bornite in a cut slab which was tested.


Roquesite

Formula
CuInS2 
Crystal System
Tetragonal 
Crystal Habit
Inclusions 
Luster
Metallic 
Color
gray 
Class
Tetragonal - Scalenohedral 
Hardness
3.5-4 
Special Info
EDS Confirmed
SOLD
Schairerite - RS58608
Schairerite - RS58608

Schairerite

#RS58608
Locality
Searless Lake, San Bernardino Co., California, United States 
Formula
Na21(SO4)7ClF6 
Availability
Sold
Size
Capsule 
Special Info
Type Locality 

A single 1mm crystal in capsule. This sodium sulfate is formed in the Searless playa lake deposit. It is a four-locality mineral.


Schairerite

Formula
Na21(SO4)7ClF6 
Crystal System
Trigonal 
Crystal Habit
Rhombohedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless 
Streak
white 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5 
Collection
RC Stamberg Collection
Special Info
Type Locality

Segelerite

#58594
Locality
Tip Top mine, Custer Co., South Dakota, United States 
Formula
CaMgFe3+(PO4)2(OH)·4H2
Availability
Sold
Size
4.6 x 4.5 x 3.5 cm - Miniature 
Tagged
phosphate , pegmatite mineral  
Special Info
Type Locality 

Tiny 1mm and less yellowish acicular crystals of Segelerite with white acicular apatite on Heterosite matrix.


Segelerite

Formula
CaMgFe3+(PO4)2(OH)·4H2
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Striated 
Cleavage
Perfect, None, None 
Luster
Vitreous - Adamantine 
Color
green, chartreuse, colorless 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
Special Info
Type Locality

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