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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 baryte, clinozoisite, fluorite, and hematite and more from places like near Norman, Cleveland Co., Oklahoma, United States, Cornog, Chester Co., Pennsylvania, United States, Stoddard mine, Westmoreland, Cheshire Co., New Hampshire, United States , Yaogangxian mine, Chenzhou, Hunan prov., China, Wolsendorf dist., Schwandorf, Bavaria, Germany, and Florence mine, Egremont, Cumbria, England.

Baryte

rose - #48538
Locality
near Norman, Cleveland Co., Oklahoma, United States 
Formula
BaSO4 
Availability
Sold
Size
9.5 x 9.5 x 8 cm - Cabinet 

An American Classic mineral locality: Baryte rose from Dr. David London's collection. London wrote a great article on this occurence in the July/August 2008 issue of the Mineralogical Record. This specimen features a cluster of three Baryte roses each  6cm wide. Excellent specimen from this unique occurence. 

The locality is long shut down and private residence.


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 
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Clinozoisite

#AH53447
Locality
Cornog, Chester Co., Pennsylvania, United States 
Formula
Ca2Al3(Si2O7)(SiO4)O(OH) 
Availability
Available
Price
$40.00
Size
6 x 6 x 4 cm - Sm Cabinet 

Blades of lustrous green Clinozoisite to over 2cm.


Clinozoisite

Formula
Ca2Al3(Si2O7)(SiO4)O(OH) 
Crystal System
Monoclinic 
Crystal Habit
Prismatic, Massive - Granular, Fibrous 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, green, gray, yellow green, light yellow 
Streak
grayish white 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
Collection
Arnold G Hampson Collection

Fluorite

with Quartz - #AH53443
Locality
Stoddard mine, Westmoreland, Cheshire Co., New Hampshire, United States  
Formula
CaF2 
Availability
Sold
Size
10 x 3.5 x 3.5 cm - Cabinet 
Tagged
pegmatite mineral  

Light purple Fluorite in rough cubic forms to 3mm with Quartz. Fluorite is uncommon in pegmatites of this breed.  Collected in 1945 by Arnold Hampson.


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
Arnold G Hampson Collection
Mineralpedia
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Fluorite

on Quartz - #AH53445
Locality
Yaogangxian mine, Chenzhou, Hunan prov., China 
Formula
CaF2 
Availability
Sold
Size
8.5 x 4 x 3 cm - Sm Cabinet 

Great specimen with a purple cubic Fluorite crystal to 1cm without flaw perched perfectly on clear Quartz crystal (6cm) on matrix of all sorts - discoidal siderite, muscovite, and pyrrhotite.


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
Arnold G Hampson Collection
Mineralpedia
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Fluorite

#WR53474
Locality
Wolsendorf dist., Schwandorf, Bavaria, Germany 
Formula
CaF2 
Availability
Available
Price
$250.00
Size
10 x 8 x 4 cm - Cabinet 

Classic orange Fluorite crystals to 1.4cm.

The specimen is from the collection of the late Willard Roberts, author of the first and second editions of the Encyclopedia of Minerals.


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
Willard L. Roberts Collection
Mineralpedia
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Hematite

#AH53468
Locality
Florence mine, Egremont, Cumbria, England 
Formula
Fe2O3 
Availability
Sold
Size
4.5 x 6 x 4 cm - Sm Cabinet 

Fascinating dark red botryoidal Hematite otherwise known are "kydney ore".


Hematite

Formula
Fe2O3 
Crystal System
Trigonal 
Crystal Habit
Tabular, Blocky, Earthy 
Cleavage
None, None, None 
Luster
Metallic 
Color
reddish gray, black, blackish red 
Streak
reddish brown 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Conchoidal 
Hardness
6.5 
Collection
Arnold G Hampson Collection
Mineralpedia
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On Dakota Matrix
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