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Mixed Minerals

Friday, 05 June 2020 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including meta-autunite, quartz, and spodumene and more from places like Cunha Baixa mine, SE of Viseu, Beira Alta, Portugal, Gillette quarry, Middlesex Co., Connecticut, United States, and Andrews quarry, Portland, Middlesex Co., Connecticut, United States.

Meta-Autunite

#BN53452
Locality
Cunha Baixa mine, SE of Viseu, Beira Alta, Portugal 
Formula
Ca(UO2)2(PO4)2·6H2
Availability
Available
Price
$25.00
Size
4 x 3 x 1 cm - Miniature 
Tagged
phosphate  

Bright yellow crystal plates to 1mm. Excellent micro crystals and strongly fluorescent.


Meta-Autunite

Formula
Ca(UO2)2(PO4)2·6H2
Crystal System
Tetragonal 
Luster
Pearly 
Color
yellow, greenish yellow, yellowish green 
Class
Tetragonal - Ditetragonal Dipyramidal 
Hardness
Collection
Dr. Buford Nichols Collection

Quartz

#WR53459
Locality
Gillette quarry, Middlesex Co., Connecticut, United States 
Formula
SiO2 
Availability
Sold
Size
3.5 x 2.2 x 1.8 cm - Miniature 

Light smoky Quartz crystal doubly terminated.


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
Willard L. Roberts Collection
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Spodumene

#AH53442
Locality
Andrews quarry, Portland, Middlesex Co., Connecticut, United States 
Formula
LiAlSi2O6 
Availability
Available
Price
$30.00
Size
7.5 x 6 x 3 cm - Sm Cabinet 
Tagged
pegmatite mineral  

Section of Spodumene crystal with an interesting blue color. Collected by Hampson in 1946.


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
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