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Pegmatite Textures & Habits

Tuesday, 27 September 2016 10:30 AM

Introducing the "Pegmatite Textures & Habits" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including albite and more from places like Little Three mine, San Diego Co., California, United States, Harding mine, Taos Co., New Mexico, United States, Ilmen Mountains, Chelyabinsk, Southern Urals, Russia, Morro Velho mine, Nova Lima, Minas Gerais, Brazil, Vanderberg pegmatite, Pala dist., San Diego Co., California, United States, and Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil.

Albite

var. Cleavelandite - #PD33148
Locality
Little Three mine, San Diego Co., California, United States 
Formula
NaAlSi3O8 
Availability
Sold
Size
5.5 x 3.5 x 2.5 cm - Sm Cabinet 
Tagged
pegmatite mineral  

Colorless, bladed Albite crystals variety cleavelandite. 


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Phillips Collection
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
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Mindat
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Albite

var. cleavelandite with Muscovite - #DH42035
Locality
Harding mine, Taos Co., New Mexico, United States 
Formula
NaAlSi3O8 
Availability
Sold
Size
15 x 10 x 7 cm - Cabinet 
Tagged
pegmatite mineral  

Large specimen composed of mostly white platy Albite with rose colored Muscovite. The habit of this specimen is coarse and platy, which is typical of the variety called "cleavelandite" and is usually found in the wall zone of a fractionated pegmatite.


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Hess Collection
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
View Albite
Mindat
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Albite

#45369
Locality
Ilmen Mountains, Chelyabinsk, Southern Urals, Russia 
Formula
NaAlSi3O8 
Availability
Available
Price
$20.00
Size
7 x 5 x 4 cm - Sm Cabinet 
Tagged
pegmatite mineral  

Another example of  the platy nature of Albite, which is a typical pegmatite mineral usually found in the wall zones.


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Phillips Collection
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
View Albite
Mindat
View Albite

Albite

var. cleavelandite - #45371
Locality
Morro Velho mine, Nova Lima, Minas Gerais, Brazil 
Formula
NaAlSi3O8 
Availability
Sold
Size
9 x 4.5 x 3 cm - Sm Cabinet 
Tagged
pegmatite mineral  

Colorless crystals of cleavelandite, a variety of Albite. These are nice crystals that reach over 1cm. Most Albite seen in pegmatites is platy and massive. This specimen is an exception and is very well crystallized.


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
View Albite
Mindat
View Albite

Albite

#45375
Locality
Vanderberg pegmatite, Pala dist., San Diego Co., California, United States 
Formula
NaAlSi3O8 
Availability
Available
Price
$15.00
Size
6 x 5 x 3 cm - Sm Cabinet 
Tagged
pegmatite mineral  

This is a bluish Albite, probably from a wall zone and is termed "sugar" Albite for its granularity.


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Collection
Phillips Collection
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
View Albite
Mindat
View Albite

Albite

var. cleavelandite with Muscovite - #45378
Locality
Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil 
Formula
NaAlSi3O8 
Availability
Sold
Size
12 x 10 x 7 cm - Cabinet 
Tagged
pegmatite mineral  

Large crystals of Albite variety cleavelandite to 2.5cm with Muscovite. 


Albite

Formula
NaAlSi3O8 
Crystal System
Triclinic 
Crystal Habit
Blocky, Striated, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
white, gray, greenish gray, bluish green, gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Uneven 
Hardness
Mineralpedia
View Albite
On Dakota Matrix
Previously Sold Albite
On Dakota Matrix
Other Available Albite
WebMineral
View Albite
Mindat
View Albite

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