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Rare Minerals for Sale

Sunday, 15 July 2018 06:00 PM

Introducing the "Rare Minerals for Sale" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including baryte, fluorapatite, pyromorphite, and synadelphite and more from places like Indian Head Rock, Basin, Jefferson Co., Montana, United States, Yates mine, Sandy Creek, Otter Lake, Quebec, Canada, Tsumeb mine, Tsumeb, Namibia, and Harstigen mine, Filipstad, Värmland, Sweden.

Baryte

#RW49361
Locality
Indian Head Rock, Basin, Jefferson Co., Montana, United States 
Formula
BaSO4 
Availability
Available
Price
$125.00
Size
6.5 x 6.5 x 2.5 cm - Sm Cabinet 

Golden thick tabular crystals of Baryte to 2.3cm on edge. Nice specimn, sits well, with many crystals.


Baryte

Formula
BaSO4 
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Massive - Fibrous 
Cleavage
Perfect, Perfect, Imperfect 
Luster
Vitreous (Glassy) 
Color
white, yellowish white, grayish white, brownish white, dark brown 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
3-3.5 
Collection
Robert J. Waidler Collection
Mineralpedia
View Baryte
On Dakota Matrix
Previously Sold Baryte
On Dakota Matrix
Other Available Baryte
WebMineral
View Baryte
Mindat
View Baryte

Fluorapatite

#49353
Locality
Yates mine, Sandy Creek, Otter Lake, Quebec, Canada 
Formula
Ca5(PO4)3
Availability
Available
Price
$250.00
Size
12 x 5.5 x 5.5 cm - Cabinet 
Tagged
phosphate  

Large, splendid, Fluorapatite crystal with nice prism faces carrying excellent luster with a reddish brown to green color. The ends are not terminated.


Fluorapatite

Formula
Ca5(PO4)3
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
blue, brown, colorless, violet, green 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
Collection
Robert J. Waidler Collection

Pyromorphite

or Mimetite(?) - #PD49369
Locality
Tsumeb mine, Tsumeb, Namibia 
Formula
Pb5(PO4)3Cl 
Availability
Available
Price
$95.00
Size
4.5 x 3.5 x 1.5 cm - Miniature 
Tagged
phosphate  

Light yellow prismatic crystals from 1 to 10mm with pointed terminations.Originated from the collection of Peter Indergand with with matching numbers on tag and specimen. Pyromorphite is not common at Tsumeb, but this may indeed be Mimetite.


Pyromorphite

Formula
Pb5(PO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Crystals short to long prismatic, acicular, often hoppered terminations, rarely tabular to equant; radiating to branching groups, tapering to a point. Commonly rounded, globular, reniform, botryoidal. 
Cleavage
On {1011}, interrupted 
Luster
Resinous to subadamantine 
Color
Dark grass-green, green, yellow, yellow-orange, reddish orange, yellow-brown, brown, tan, grayish, may be colorless 
Streak
White 
Geological Setting
A secondary mineral in the oxidized zone of lead deposits 
Class
Hexagonal, 6/m - Dipyramidal 
Fracture
Uneven to subconchoidal 
Hardness
3.5–4 
Collection
Don Phillips Collection

Synadelphite

#41248
Locality
Harstigen mine, Filipstad, Värmland, Sweden 
Formula
Mn2+9(As3+O3)(As5+O4)2(OH)9·2H2
Availability
Available
Price
$195.00
Size
0.9 x 0.7 x 0.4 cm - Thumbnail 
Special Info
Type Material 

Brownish yellow crystalline mineral. Ex. Georg Gebhard with tag. The specimen is part of the type from the British Museum in London. This information is stated on the backside of the label (see prov tab).


Synadelphite

Formula
Mn2+9(As3+O3)(As5+O4)2(OH)9·2H2
Crystal System
Orthorhombic 
Crystal Habit
Tabular, Prismatic, Reniform 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Adamantine 
Color
colorless, red, reddish brown, dark brown, black 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
4.5 
Collection
Ex. Georg Gebhard
Special Info
Type Material

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