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Mixed Minerals

Friday, 28 April 2017 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including belovite-(ce), berlinite, fluorcaphite, jagowerite, lacroixite, and natrolite and more from places like Umbozero mine, Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia, Hålsjöberg, Torsby, Värmland, Sweden, Koashva Mt., Khibiny Massif, Kola Peninsula, Russia, Hess River, Yukon Territory, Canada, Rusororo pegmatite, Gatumba, Rwanda, and Robertson pit, Mason Co., Washington, United States.

Belovite-(Ce)

with Steenstrupine, Serandite & Ussingite - #BN46816
Locality
Umbozero mine, Alluaiv Mt., Lovozero Massif, Kola Peninsula, Russia 
Formula
NaCeSr3(PO4)3
Availability
Available
Price
$55.00
Size
6.5 x 5 x 4 cm - Sm Cabinet 
Tagged
phosphate , REE mineral  

Faint yellow bladed or prismatic crystals to 3mm in an area of 1.5 x 1cm with dark red to black Steenstrupine as formless 5-8mm crystals and pink Serandite all in Ussingite matrix.


Belovite-(Ce)

Formula
NaCeSr3(PO4)3
Crystal System
Trigonal 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Greasy 
Color
honey yellow 
Streak
white 
Class
Trigonal - Pyramidal 
Fracture
Brittle - Uneven 
Hardness
Collection
Dr. Buford L. Nichols Collection

Berlinite

with Trolleite & Scorzalite - #BN46821
Locality
Hålsjöberg, Torsby, Värmland, Sweden 
Formula
AlPO4 
Availability
Sold
Size
4.5 x 3.5 x 3.5 cm - Miniature 
Tagged
phosphate  

There is a handful of descriptively obscure primary(?) white to blue aluminum phosphates of which Berlinite, Trolleite, Scorzalite, Burangite, Gatumbaite, Lazulite, Augelite, and Lacroixite are part of. At particular deposits these phosphates seem to blend into the next and color does not help identify any of these. So I won't pretend to tell you which is which, just trust me. The specimen originated via the late David Shannon and collected by I. Johansson in 1984. The original tag explains some of it....But I will tell you that the red is Rutile. That I know.  To make matters worse the entire matrix seems to be an altered marble, as it is granular. And then there are other phosphates including Wylliete and Svanbergite at this deposit. To throw you off more is the association with blue Kyanite. You might be interested in http://www.nags.net/stein/1989/Halsjoberg.pdf for more information. 


Berlinite

Formula
AlPO4 
Crystal System
Trigonal 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, gray, gray pink, light pink 
Streak
white 
Class
Trigonal - Trapezohedral 
Fracture
Conchoidal 
Hardness
6.5 
Collection
Dr. Buford L. Nichols Collection
Mineralpedia
View Berlinite
On Dakota Matrix
Previously Sold Berlinite
On Dakota Matrix
Other Available Berlinite
WebMineral
View Berlinite
Mindat
View Berlinite

Fluorcaphite

#BN46864
Locality
Koashva Mt., Khibiny Massif, Kola Peninsula, Russia 
Formula
SrCaCa3(PO4)3
Availability
Available
Price
$45.00
Size
4 x 3 x 2 cm - Miniature 
Tagged
phosphate  
Special Info
Type Locality 

Tannish orange crystalline grains. Fluorcaphite is basically a strontium apatite.


Fluorcaphite

Formula
SrCaCa3(PO4)3
Crystal System
Hexagonal 
Crystal Habit
Subhedral Crystals, Prismatic 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
light yellow, bright yellow 
Streak
white 
Class
Hexagonal - Pyramidal 
Fracture
Sub Conchoidal 
Hardness
Special Info
Type Locality
SOLD
Jagowerite - PD46848
Jagowerite - PD46848

Jagowerite

#PD46848
Locality
Hess River, Yukon Territory, Canada 
Formula
BaAl2(PO4)2(OH)2 
Availability
Sold
Size
3 x 2 x 1 cm - Thumbnail 
Tagged
phosphate  
Special Info
Fluorescent 
Special Info
Type Locality 

Green crystal grains. Jagowerite is a very rare barium-aluminum phosphate found only at the Hess River site. To my knowledge, very few specimens have been found. Mildly fluorescent red.


Jagowerite

Formula
BaAl2(PO4)2(OH)2 
Crystal System
Triclinic 
Cleavage
Good, Good, Distinct 
Luster
Vitreous (Glassy) 
Color
light green 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
4.5 
Collection
Phillips Collection
Special Info
Fluorescent
Special Info
Type Locality
SOLD
Lacroixite - PD46849
Lacroixite - PD46849

Lacroixite

#PD46849
Locality
Rusororo pegmatite, Gatumba, Rwanda 
Formula
NaAl(PO4)F 
Availability
Sold
Size
2 x 1 x 0.4 cm - Thumbnail 
Tagged
phosphate  

Colorless Lacroixite with another aluminum phosphate, probably Berlinite of Lazulite. Somewhat rare or uncommon, but probably overlooked at most pegmatites.


Lacroixite

Formula
NaAl(PO4)F 
Crystal System
Monoclinic 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous - Resinous 
Color
colorless, gray, gray white, light green, light yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
4.5 
Collection
Phillips Collection

Natrolite

#BM46819
Locality
Robertson pit, Mason Co., Washington, United States 
Formula
Na2(Si3Al2)O10·2H2
Availability
Sold
Size
7 x 5 x 4 cm - Sm Cabinet 

White or colorless acicular sprays of Natrolite crytsals to 8mm.


Natrolite

Formula
Na2(Si3Al2)O10·2H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular, Prismatic, Nodular 
Cleavage
Perfect, Imperfect, None 
Luster
Vitreous - Silky 
Color
white, colorless, red, yellowish white, reddish white 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Brittle 
Hardness
5.5-6 
Collection
McConlogue Collection
Mineralpedia
View Natrolite
On Dakota Matrix
Previously Sold Natrolite
On Dakota Matrix
Other Available Natrolite
WebMineral
View Natrolite
Mindat
View Natrolite

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