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0 item @ $0.00  

Micromounts

Friday, 30 June 2023 01:30 PM

Introducing the "Micromounts" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including pyromorphite, ruizite, rutile, salesite, scheelite, and scorodite and more from places like Hardshell mine, Santa Cruz Co., Arizona, United States, Christmas mine, Gila Co., Arizona, United States, Hiddenite, Alexander Co., North Carolina, United States, Chuquicamata mine, El Loa Prov., Antofagasta, Chile, Ortiz mine, Santa Fe Co., New Mexico, United States, and Wendy pit, Tambo mine, Elqui, Coquimbo, Chile.

Pyromorphite

#61806
Locality
Hardshell mine, Santa Cruz Co., Arizona, United States 
Formula
Pb5(PO4)3Cl 
Availability
Sold
Size
Micromount 
Tagged
phosphate  

Greenish yellow, rice-shaped or barrel-shaped crystals.


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 

Ruizite

with Kinoite - #61812
Locality
Christmas mine, Gila Co., Arizona, United States 
Formula
Ca2Mn3+2Si4O11(OH)4·2H2
Availability
Sold
Size
Micromount 
Special Info
Type Locality 

Brick red fuzzy Ruizite with sprays of Kinoite. Overall 1.8 x 1.9cm.


Ruizite

Formula
Ca2Mn3+2Si4O11(OH)4·2H2
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Prismatic, Radial 
Color
brown, orange 
Streak
apricot yellow 
Class
Monoclinic - Prismatic 
Hardness
Special Info
Type Locality
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SOLD
Rutile - 61796
Rutile - 61796

Rutile

#61796
Locality
Hiddenite, Alexander Co., North Carolina, United States 
Formula
TiO2 
Availability
Sold
Size
Micromount 

Reticulated deep red Rutile. Overall 1 x 0.9cm.


Rutile

Formula
TiO2 
Crystal System
Tetragonal 
Crystal Habit
Acicular, Prismatic, Massive - Granular 
Cleavage
Distinct, None, None 
Luster
Adamantine 
Color
blood red, bluish, brownish yellow, brown red, violet 
Streak
grayish black 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Uneven 
Hardness
6-6.5 
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Salesite

#61807
Locality
Chuquicamata mine, El Loa Prov., Antofagasta, Chile 
Formula
Cu(IO3)(OH) 
Availability
Sold
Size
Micromount 
Tagged
copper  

Salesite is a rare copper iodate found only in Chile, at two localities. There are two good, well-formed crystals on this mount. The largest is 1mm. Salesite is a seldom seen on the market.


Salesite

Formula
Cu(IO3)(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
blue green, dark green 
Streak
light green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Mineralpedia
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Scheelite

#61901
Locality
Ortiz mine, Santa Fe Co., New Mexico, United States 
Formula
CaWO4 
Availability
Sold
Size
Micromount 

Orange octahedral crystal to 7mm with some dings.


Scheelite

Formula
CaWO4 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Disseminated, Columnar 
Cleavage
Distinct, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white, pale yellow, brownish yellow, reddish yellow 
Streak
white 
Class
Tetragonal - Dipyramidal 
Fracture
Uneven 
Hardness
4-5 
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Scorodite

#61805
Locality
Wendy pit, Tambo mine, Elqui, Coquimbo, Chile 
Formula
Fe3+AsO4·2H2
Availability
Sold
Size
Micromount 
Tagged
arsenate  

Blue terminated crystal to 2mm.


Scorodite

Formula
Fe3+AsO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Earthy, Granular, Fibrous 
Cleavage
Imperfect, Poor, Poor 
Luster
Vitreous - Greasy 
Color
yellowish green, pale leek green, liver brown, blue green, black green 
Streak
greenish white 
Class
Orthorhombic - Dipyramidal 
Fracture
Splintery 
Hardness
3.5-4 
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