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0 item @ $0.00  

Big & Rush Creeks MIneral Specimens

Saturday, 27 June 2015 01:00 PM

Barium Silicate Minerals

Devitoite

with Celsian & Titantaramellite - #39233
Locality
Esquire #8 claim, Big Creek, Fresno Co., California, United States 
Formula
[Ba6(PO4)2(CO3)][Fe2+7Fe3+2(SiO3)8O2(OH)4
Availability
Sold
Size
3 x 2 x 1 cm - Thumbnail 
Tagged
phosphate , carbonate  
Special Info
Type Locality 

An excellent specimen of this extremely rare mineral found only at the Esquire #8 claim and Trumbull Peak. This specimen features a 5mm dark reddish brown divergent group in matrix. It is associated with excellent crystals of deep red translucent Titantaramellite. Comes with a signed label by the one of the authors and discoverer, Robert Walstrom.


Devitoite

Formula
[Ba6(PO4)2(CO3)][Fe2+7Fe3+2(SiO3)8O2(OH)4
Special Info
Type Locality
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Mindat
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Fresnoite

with Sanbornite - #PD42267
Locality
Esquire #1 claim, Rush Creek, Fresno Co., California, United States 
Formula
Ba2TiO(Si2O7
Availability
Sold
Size
5 x 5 x 2.5 cm - Miniature 
Special Info
Fluorescent 
Special Info
Type Locality 

1-2mm canary yellow Fresnoite crystal grains. It is associated with Sanbornite and possible Traskite.


Fresnoite

Formula
Ba2TiO(Si2O7
Crystal System
Tetragonal 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
greenish yellow, lemon 
Streak
white 
Class
Tetragonal - Ditetragonal Pyramidal 
Hardness
3-4 
Collection
Phillips Collection
Special Info
Fluorescent
Special Info
Type Locality
Mineralpedia
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Mindat
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Fresnoite

#PD42277
Locality
Rush Creek, Fresno Co., California, United States 
Formula
Ba2TiO(Si2O7
Availability
Sold
Size
4 x 3 x 3 cm - Miniature 
Special Info
Fluorescent 

Bright canary red, translucent crystal grains to 1mm.


Fresnoite

Formula
Ba2TiO(Si2O7
Crystal System
Tetragonal 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
greenish yellow, lemon 
Streak
white 
Class
Tetragonal - Ditetragonal Pyramidal 
Hardness
3-4 
Collection
Phillips Collection
Special Info
Fluorescent
Mineralpedia
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Mindat
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Gillespite

#PD42282
Locality
Esquire #7 claim, Big Creek, Fresno Co., California, United States 
Formula
BaFe2+Si4O10 
Availability
Sold
Size
4 x 3 x 3 cm - Miniature 

1-3mm Gillespite crystal grains.


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
Phillips Collection
SOLD
Kampfite - 38267
Kampfite - 38267

Kampfite

#38267
Locality
Esquire #7 claim, Big Creek, Fresno Co., California, United States 
Formula
Ba12(Si11Al5)O31(CO3)8Cl5 
Availability
Sold
Size
1.5 x 1 x 0.5 cm - Thumbnail 
Special Info
Type Locality 

Blue crystalline masses to 2mm in a small 1cm plus specimen. Kampfite is an extremely rare mineral at these deposits and worldwide.

Named in 2001 by the authors: Laurel Christine Basciano, Lee A. Groat, Andrew C. Roberts, Joel D. Grice, Gail E. Dunning, Eugene E. Foord, Ingrid M. Kjarsgaard, and Robert E. Walstrom in honor of Dr Anthony Robert Kampf, Los Angeles County Museum of Natural History, for his many significant contributions to the study of new and rare minerals (Mindat).


Kampfite

Formula
Ba12(Si11Al5)O31(CO3)8Cl5 
Crystal System
Monoclinic 
Crystal Habit
Irregular Grains 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
light blue gray 
Streak
white 
Class
Monoclinic - Domatic 
Fracture
Brittle - Uneven 
Hardness
Special Info
Type Locality
Mineralpedia
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Mindat
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SOLD
Kampfite - 38268
Kampfite - 38268

Kampfite

#38268
Locality
Esquire #1 claim, Rush Creek, Fresno Co., California, United States 
Formula
Ba12(Si11Al5)O31(CO3)8Cl5 
Availability
Sold
Size
Chip < 1cm 
Special Info
Type Locality 

A small specimen with a single bluish grain of Kampfite.


Kampfite

Formula
Ba12(Si11Al5)O31(CO3)8Cl5 
Crystal System
Monoclinic 
Crystal Habit
Irregular Grains 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
light blue gray 
Streak
white 
Class
Monoclinic - Domatic 
Fracture
Brittle - Uneven 
Hardness
Special Info
Type Locality
Mineralpedia
View Kampfite
On Dakota Matrix
Previously Sold Kampfite
On Dakota Matrix
Other Available Kampfite
WebMineral
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Mindat
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