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Rare Mineral Species

Friday, 09 August 2019 06:30 PM

Introducing the "Rare Mineral Species" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including sabugalite, scheelite, schwartzembergite, seamanite, strengite and more from places like Jeannie K claims, Stateline Peak dist., Washoe Co., Nevada, United States, Brunswick mine, Grass Valley dist., Nevada Co., California, United States, San Rafael mine, Sierra Gorda dist., Antofagasta, Chile, Chicagon mine, Menominee iron range, Iron Co., Michigan, United States, Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil, and Three Oaks Gap, Polk Co., Arkansas, United States.

SOLD
Sabugalite - 51115
Sabugalite - 51115

Sabugalite

#51115
Locality
Jeannie K claims, Stateline Peak dist., Washoe Co., Nevada, United States 
Formula
HAl(UO2)4(PO4)4·16H2
Availability
Sold
Size
5.5 x 4 x 2 cm - Sm Cabinet 
Tagged
phosphate  

Yellow coatings on sandy matrix. Coverage on reverse side also.


Sabugalite

Formula
HAl(UO2)4(PO4)4·16H2
Crystal System
Tetragonal 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
light yellow, lemon 
Streak
yellow white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Hardness
2.5 
SOLD
Scheelite - 51106
Scheelite - 51106

Scheelite

#51106
Locality
Brunswick mine, Grass Valley dist., Nevada Co., California, United States 
Formula
CaWO4 
Availability
Sold
Size
5 x 4 x 3.5 cm - Miniature 
Special Info
Fluorescent 

Yellowish brown crystalline areas. The Scheelite is strongly and vividly fluorescent!


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 
Special Info
Fluorescent
Mineralpedia
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Schwartzembergite

#51091
Locality
San Rafael mine, Sierra Gorda dist., Antofagasta, Chile 
Formula
Pb2+5H2I3+O6Cl3 
Availability
Sold
Size
2.5 x 1.8 x 0.5 cm - Thumbnail 

Yellow  micro crystals and scales less than 0.4mm or so. Ex. Dr. Al Kidwell.


Schwartzembergite

Formula
Pb2+5H2I3+O6Cl3 
Crystal System
Tetragonal 
Crystal Habit
Druse, Crystalline - Fine 
Cleavage
Distinct, None, None 
Luster
Adamantine 
Color
yellow brown, light yellow, reddish brown 
Streak
light yellow 
Class
Tetragonal - Ditetragonal Dipyramidal 
Hardness
2.5 
Collection
Dr. Albert Kidwell collection
SOLD
Seamanite - 29458
Seamanite - 29458

Seamanite

#29458
Locality
Chicagon mine, Menominee iron range, Iron Co., Michigan, United States 
Formula
Mn2+3B(PO4)(OH)6 
Availability
Sold
Size
Micromount 
Tagged
phosphate  

A small sliver of red, translucent crystal from the Type Locality.


Seamanite

Formula
Mn2+3B(PO4)(OH)6 
Crystal System
Orthorhombic 
Crystal Habit
Acicular 
Cleavage
Indistinct, Distinct, None 
Luster
Vitreous (Glassy) 
Color
yellow, yellow brown, light pink, wine yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness

Strengite

#BN51087
Locality
Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil 
Formula
Fe3+PO4·2H2
Availability
Sold
Size
9 x 6 x 7 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  

Phasphate mass with a large cavity lined with purple to pink balls of Strengite.


Strengite

Formula
Fe3+PO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Radial, Botryoidal 
Cleavage
Good, Poor, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale violet, deep violet, red, carmine red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5 
Collection
Dr. Buford Nichols Collection
Mineralpedia
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Strengite

with Cacoxenite & Beraunite - #BN51094
Locality
Three Oaks Gap, Polk Co., Arkansas, United States 
Formula
Fe3+PO4·2H2
Availability
Sold
Size
7 x 6 x 4 cm - Sm Cabinet 
Tagged
phosphate  

Sparkly purple crystal balls of Strengite to 2mm on green Kidellite with golden fibrous Cacoxenite all of which was crystallized on red Beraunite and probably Rockbridgeite. Great specimen!


Strengite

Formula
Fe3+PO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Radial, Botryoidal 
Cleavage
Good, Poor, None 
Luster
Vitreous (Glassy) 
Color
colorless, pale violet, deep violet, red, carmine red 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3.5 
Collection
Dr. Buford Nichols Collection
Mineralpedia
View Strengite
On Dakota Matrix
Previously Sold Strengite
On Dakota Matrix
Other Available Strengite
WebMineral
View Strengite
Mindat
View Strengite

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