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0 item @ $0.00  

Mixed Minerals

Sunday, 30 May 2021 07:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including gold, hopeite, johannsenite, lyonsite, malachite, and monazite-(ce) and more from places like Bessie G mine, La Plata Co., Colorado, United States, Kabwe mine, Broken Hill, Kabwe dist., Central Province, Zambia, Broken Hill, New South Wales, Australia, Tolbachik Volcano, Kamchatka, Russia, Luishia mine, Katanga, Democratic Republic of Congo , and Ambolotarakely, Ankazobe dist., Analamanga, Madagascar.

Gold

with Coloradoite - #AH55840
Locality
Bessie G mine, La Plata Co., Colorado, United States 
Formula
Au 
Availability
Sold
Size
7.5 x 5.5 x 4 cm - Sm Cabinet 
Tagged
native element  

One tiny 1mm showing of Gold with Coloradoite and another somewhat covered but visible and very good Coloradoite crystal.


Gold

Formula
Au 
Crystal System
Isometric 
Crystal Habit
Arborescent, Platy, Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
yellow, pale yellow, orange, yellow white, reddish white 
Streak
yellow 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 
Collection
Arnold G Hampson Collection
Mineralpedia
View Goldmanite
On Dakota Matrix
Previously Sold Gold
On Dakota Matrix
Other Available Gold
WebMineral
View Gold
Mindat
View Gold

Hopeite

#WR55792
Locality
Kabwe mine, Broken Hill, Kabwe dist., Central Province, Zambia 
Formula
Zn3(PO4)2·4H2
Availability
Sold
Size
2.5 x 1.5 x 2 cm - Thumbnail 
Tagged
phosphate  

Several prismatic, striated crystals to 1.3cm all showing good terminations. Excellent specimen.


Hopeite

Formula
Zn3(PO4)2·4H2
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Reniform, Encrustations 
Cleavage
Perfect, Good, Poor 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, yellow, white, light yellow 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
Mineralpedia
View Hopeite
On Dakota Matrix
Previously Sold Hopeite
On Dakota Matrix
Other Available Hopeite
WebMineral
View Hopeite
Mindat
View Hopeite

Johannsenite

with Hedenbergite - #PD55865
Locality
Broken Hill, New South Wales, Australia 
Formula
CaMn2+Si2O6 
Availability
Sold
Size
3.5 x 3 x 1 cm - Miniature 

Quite nice dark green and translucent Johannsenite crystals to 2mm with deep red or orange Spessartine.


Johannsenite

Formula
CaMn2+Si2O6 
Crystal System
Monoclinic 
Crystal Habit
Acicular, Massive - Granular 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
brown, brownish black, greenish, gray, gray green 
Streak
greenish gray 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness

Lyonsite

#50483
Locality
Tolbachik Volcano, Kamchatka, Russia 
Formula
Cu2+3Fe3+4(VO4)6 
Availability
Sold
Size
2 x 1.5 x 1.5 cm - Thumbnail 
Tagged
copper , vanadium  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Tiny, less than 1mm, acicular crystals of black Lyonsite. Dr. Igor Pekov specimen.


Lyonsite

Formula
Cu2+3Fe3+4(VO4)6 
Crystal System
Orthorhombic 
Crystal Habit
Euhedral Crystals, Lath 
Cleavage
Good, None, None 
Luster
Metallic 
Color
black 
Streak
dark gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Special Info
XRD Confirmed
Special Info
EDS Confirmed
On Dakota Matrix
Previously Sold Lyonsite
On Dakota Matrix
Other Available Lyonsite
WebMineral
View Lyonsite
Mindat
View Lyonsite

Malachite

#WR55846
Locality
Luishia mine, Katanga, Democratic Republic of Congo  
Formula
Cu2CO3(OH)2 
Availability
Available
Price
$40.00
Size
8.5 x 6 x 4.5 cm - Sm Cabinet 
Tagged
carbonate , copper  

A chunk of banded Malachite.


Malachite

Formula
Cu2CO3(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Botryoidal, Stalactitic, Massive - Fibrous 
Cleavage
Perfect, Fair, None 
Luster
Vitreous - Silky 
Color
green, dark green, blackish green 
Streak
light green 
Class
Monoclinic - Prismatic 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Willard L. Roberts Collection
Mineralpedia
View Malachite
On Dakota Matrix
Previously Sold Malachite
On Dakota Matrix
Other Available Malachite
WebMineral
View Malachite
Mindat
View Malachite

Monazite-(Ce)

#WR55794
Locality
Ambolotarakely, Ankazobe dist., Analamanga, Madagascar 
Formula
CePO4 
Availability
Sold
Size
2.5 x 1.5 x 0.5 cm - Thumbnail 
Tagged
phosphate  

A complete Monazite crystals terminated on all sides.


Monazite-(Ce)

Formula
CePO4 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Twinning Common 
Cleavage
Distinct, Indistinct, None 
Luster
Adamantine - Resinous 
Color
brown, colorless, greenish, gray white, yellow 
Streak
grayish white 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
5-5.5 
Collection
Willard L. Roberts Collection

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