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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 rhodochrosite, scheelite, scholzite, sklodowskite, spessartine, and spodumene and more from places like Uchucchacua mine, Oyon prov., Lima dept., Peru, Ortiz mine, Santa Fe Co., New Mexico, United States, Reaphook Hill, Flinders Ranges, South Australia, Australia, Spider mine, Honeycomb Hills, Juab Co., Utah, United States, Tongbei, Fujian prov., China, and Resplendor, Minas Gerais, Brazil.

Rhodochrosite

#AH52173
Locality
Uchucchacua mine, Oyon prov., Lima dept., Peru 
Formula
MnCO3 
Availability
Sold
Size
7 x 5 x 4 cm - Sm Cabinet 
Tagged
carbonate  

Small cabinet with good stubby, gemmy red Rhodochrosite crystals to 7mm. Showy.


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
Arnold G Hampson Collection
SOLD
Scheelite - AH52245
Scheelite - AH52245

Scheelite

#AH52245
Locality
Ortiz mine, Santa Fe Co., New Mexico, United States 
Formula
CaWO4 
Availability
Sold
Size
6 x 3 x 4 cm - Sm Cabinet 
Special Info
Fluorescent 

Creamy yelolow to brown crystals of Scheelite to 2mm. There are numerous obscure crystals which can hardly be seen in-hand but lights up under UV.


Scheelite

Formula
CaWO4 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Disseminated, Columnar 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white, pale yellow, brownish yellow, reddish yellow 
Streak
white 
Class
Tetragonal - Dipyramidal 
Fracture
Uneven 
Hardness
4-5 
Collection
Arnold G Hampson Collection
Special Info
Fluorescent
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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Mindat
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Sklodowskite

#AH51954
Locality
Spider mine, Honeycomb Hills, Juab Co., Utah, United States 
Formula
Mg(UO2)2(SiO3OH)2·6H2
Availability
Sold
Size
5 x 4 x 2.5 cm - Miniature 

Canary yellow acicular crystals across face. Rich, very nice piece.


Sklodowskite

Formula
Mg(UO2)2(SiO3OH)2·6H2
Crystal System
Monoclinic 
Crystal Habit
Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
greenish yellow, light yellow 
Streak
yellow white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2-3 
Collection
Arnold G Hampson Collection

Spessartine

garnet - #AH52143
Locality
Tongbei, Fujian prov., China 
Formula
Mn2+3Al2(SiO4)3 
Availability
Sold
Size
7 x 8 x 2 cm - Sm Cabinet 

An excellent plate of lustrous Spessartine crystals to 4mm and a minor small smoky Quartz.


Spessartine

Formula
Mn2+3Al2(SiO4)3 
Crystal System
Isometric 
Crystal Habit
Massive, Crystalline - Fine, Lamellar 
Cleavage
Distinct, None, None 
Luster
Vitreous - Resinous 
Color
red, reddish orange, yellowish brown, reddish brown, brown 
Streak
white 
Class
Isometric - Hexoctahedral 
Fracture
Sub Conchoidal 
Hardness
6.5-7.5 
Collection
Arnold G Hampson Collection

Spodumene

var. kunzite - #AH52178
Locality
Resplendor, Minas Gerais, Brazil 
Formula
LiAlSi2O6 
Availability
Available
Price
$50.00
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
View Spodumene
On Dakota Matrix
Previously Sold Spodumene
On Dakota Matrix
Other Available Spodumene
WebMineral
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Mindat
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