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Rare & Systematic Minerals

Friday, 07 February 2020 09:00 PM

Introducing the "Rare & Systematic Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including axinite-(fe), beryl, quartz, scholzite, and spodumene and more from places like Dal'negorsk, Primorsky Kray, Russia, Teofilo Otoni, Minas Gerais, Southeast Region, Brazil, Cathedral Rock, Ravalli Co., Montana, United States, Reaphook Hill, Flinders Ranges, South Australia, Australia, and Resplendor, Minas Gerais, Brazil.

Axinite-(Fe)

#BN52300
Locality
Dal'negorsk, Primorsky Kray, Russia 
Formula
Ca4Fe2+2Al4[B2Si8O30](OH)2 
Availability
Available
Price
$45.00
Size
3.5 x 3.5 x 1.5 cm - Miniature 

Brown to purplish brown sharply pointed crystals to 6mm in a real nice cluster.


Axinite-(Fe)

Formula
Ca4Fe2+2Al4[B2Si8O30](OH)2 
Crystal System
Triclinic 
Crystal Habit
Massive - Granular, Lamellar 
Cleavage
Distinct, Poor, Poor 
Luster
Vitreous (Glassy) 
Color
brown, purplish blue, gray, greenish yellow 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
6.5-7 
Collection
Dr. Buford Nichols Collection

Beryl

var. aquamarine - #AH52149
Locality
Teofilo Otoni, Minas Gerais, Southeast Region, Brazil 
Formula
Be3Al2Si6O18 
Availability
Available
Price
$125.00
Size
5.5 x 1 x 1 cm - Sm Cabinet 
Tagged
beryllium , pegmatite mineral  

Gemmy light aqua blue terminated crystal with good luster and nice vertical striations.


Beryl

Formula
Be3Al2Si6O18 
Crystal System
Hexagonal 
Crystal Habit
Crystalline - Coarse, Prismatic, Columnar 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
green, blue, yellow, colorless, pink 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5-8 
Collection
Arnold G Hampson Collection
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Quartz

var. Smoky - #49462
Locality
Cathedral Rock, Ravalli Co., Montana, United States 
Formula
SiO2 
Availability
Sold
Size
7 x 2.3 x 1.8 cm - Sm Cabinet 

A single very dark brown quartz crystal to 7cm. A great specimen from Chris van Laer's collection. Chris was a fantastic field collector in Montana and Idaho.


Quartz

Formula
SiO2 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Druse, Crystalline - Fine 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, violet, gray, yellow 
Streak
white 
Class
Trigonal - Trapezohedral 
Fracture
Conchoidal 
Hardness
Collection
Chris van Laer Collection
Mineralpedia
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Scholzite

with Hillite - #27434
Locality
Reaphook Hill, Flinders Ranges, South Australia, Australia 
Formula
CaZn2(PO4)2·2H2
Availability
Sold
Size
5 x 4 x 2.5 cm - Miniature 
Tagged
phosphate  

Superb colorless and long slender crystals of Scholzite in limonitic matrix. There are a few little equant murky white Hillite crystals.


Scholzite

Formula
CaZn2(PO4)2·2H2
Crystal System
Orthorhombic 
Cleavage
Parting, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Mineralpedia
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Spodumene

var. kunzite - #AH52178
Locality
Resplendor, Minas Gerais, Brazil 
Formula
LiAlSi2O6 
Availability
Sold
Size
4.5 x 2.5 x 1.5 cm - Miniature 
Tagged
pegmatite mineral  

Rich, gemmy, lilac pink Spodumene crystal.


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
Arnold G Hampson Collection
Mineralpedia
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