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Mixed Minerals

Friday, 27 January 2017 08:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including beryl, bobfergusonite, celestine, fluorite, gillespite, and hydroxylherderite and more from places like Ping Wu, Mei Yang, Schuang Province, China, Gotcha Claim, Cross Lake, Manitoba, Canada, Sicily, Italy, Faraday mine, Hastings Co., Ontario, Canada, Gun Claims, MacMillian Pass, Itsy Mountains, Yukon Territory, Canada, and Pomaroli mine, Linopolis, Divino das Laranjereiras, Minas Gerais, Brazil.

Beryl

var. aquamarine - #46212
Locality
Ping Wu, Mei Yang, Schuang Province, China 
Formula
Be3Al2Si6O18 
Availability
Sold
Size
7 x 4.5 x 4 cm - Sm Cabinet 
Tagged
beryllium  

An aquamarine - tabular crystal to 3.2cm. Normally bery crystallizes in the prismatic habit and this particular tabular habit is uncommon. It has some minor chipping, but is set nicely on Albite matrix.


Beryl

Formula
Be3Al2Si6O18 
Crystal System
Hexagonal 
Crystal Habit
Crystalline - Coarse, Prismatic, Columnar 
Cleavage
Imperfect, None, None 
Luster
Vitreous - Resinous 
Color
green, blue, yellow, colorless, pink 
Streak
white 
Class
Hexagonal - Dihexagonal Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
7.5-8 
Collection
Chris van Laer Collection
Mineralpedia
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Previously Sold Beryl
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Bobfergusonite

in Quartz and apatite - #BN46189
Locality
Gotcha Claim, Cross Lake, Manitoba, Canada 
Formula
Na2Mn2+5Fe3+Al(PO4)6 
Availability
Sold
Size
8 x 3.5 x 3.5 cm - Sm Cabinet 
Tagged
phosphate , pegmatite mineral  
Special Info
EDS Confirmed 

Nodular phosphate pod altered around around the rim to Bobfergusonite. The pod is 3cm. Comes with an Excalibur label with EDS analysis as seen in the prov. tab.


Bobfergusonite

Formula
Na2Mn2+5Fe3+Al(PO4)6 
Crystal System
Monoclinic 
Cleavage
Perfect, None, None 
Luster
Resinous 
Color
greenish brown, reddish brown 
Streak
yellowish brown 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
Collection
Dr. Buford L. Nichols Collection
Special Info
EDS Confirmed

Celestine

with Sulphur - #BN46195
Locality
Sicily, Italy 
Formula
SrSO4 
Availability
Available
Price
$35.00
Size
7 x 7 x 5 cm - Sm Cabinet 

Celestine crystals to 1.1cm, averaging 7mm in a large cluster with associated sulfur to 5mm.


Celestine

Formula
SrSO4 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Coarse, Massive, Granular 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
blue, brown, colorless, green, gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
3-3.5 
Collection
Dr. Buford L. Nichols Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Celestine
On Dakota Matrix
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Mindat
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Fluorite

with apatite - #BN46183
Locality
Faraday mine, Hastings Co., Ontario, Canada 
Formula
CaF2 
Availability
Sold
Size
7.5 x 4.5 x 3 cm - Sm Cabinet 

Dark purple banded Fluorite with apatite.


Fluorite

Formula
CaF2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Disseminated 
Cleavage
Three perfect, octahedral cleavages. 
Luster
Vitreous (Glassy) 
Color
purple, clear, yellow, green, red, blue 
Streak
white 
Geological Setting
Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments  
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
Collection
Dr. Buford L. Nichols Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Fluorite
On Dakota Matrix
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Gillespite

in Sanbornite - #BN46188
Locality
Gun Claims, MacMillian Pass, Itsy Mountains, Yukon Territory, Canada 
Formula
BaFe2+Si4O10 
Availability
Available
Price
$25.00
Size
7.5 x 4 x 2.5 cm - Sm Cabinet 

Red crystalline grains to 2mm. Gillespite is a barium iron phyllosilicate found in metamorphic rocks rich in barium. It is associated with another barium mineral, Sanbornite.


Gillespite

Formula
BaFe2+Si4O10 
Crystal System
Tetragonal 
Crystal Habit
Aggregates 
Cleavage
Good, Good, Poor 
Luster
Vitreous (Glassy) 
Color
red 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Brittle 
Hardness
Collection
Dr. Buford L. Nichols Collection

Hydroxylherderite

#BN46193
Locality
Pomaroli mine, Linopolis, Divino das Laranjereiras, Minas Gerais, Brazil 
Formula
CaBePO4(OH) 
Availability
Available
Price
$40.00
Size
7 x 6 x 2.5 cm - Sm Cabinet 
Tagged
phosphate , beryllium , pegmatite mineral  

 A large plate full of nothing but tan crystals to 4mm.


Hydroxylherderite

Formula
CaBePO4(OH) 
Crystal System
Monoclinic 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
blue, blue green, colorless, greenish white, white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
5-5.5 
Collection
Dr. Buford L. Nichols Collection

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