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Mixed Rare Minerals

Saturday, 07 May 2022 12:00 PM

Introducing the "Mixed Rare Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cuproromeite, eosphorite, fluorluanshiweiite, hambergite, hiortdahlite, and johillerite and more from places like Comanche mine, Mono Co., California, United States, Foote mine, Cleveland Co., North Carolina, United States, Shuk-Byul' peg., Sol'bel'der peg. field, Sangilen Uppland, Tuva, Siberia, Russia, Little Three mine, San Diego Co., California, United States, Stokkøya, Langesundsfjorden, Larvik, Vestfold, Norway, and Tolbachik Volcano, Kamchatka, Russia.

Cuproromeite

aka Partzite - #58429
Locality
Comanche mine, Mono Co., California, United States 
Formula
Cu2Sb2(O,OH)7 
Availability
Available
Price
$40.00
Size
4.5 x 3 x 1.5 cm - Miniature 
Tagged
copper  

Partzite is not an actual IMA mineral. Instead they think that it is very similar to Cuproromeite. Scratching the metallic areas does produce a dark green color and its streak is dark olive green. The metallic large grain is 1.5cm and is probably tarnished.


Collection
RC Stamberg Collection

Eosphorite

#RS58440
Locality
Foote mine, Cleveland Co., North Carolina, United States 
Formula
Mn2+AlPO4(OH)2·H2
Availability
Available
Price
$125.00
Size
5 x 3 x 0.5 cm - Miniature 
Tagged
phosphate , pegmatite mineral  

Beautiful orange crystal group of Eosphorite about 1mm with great coverage. Excellent specimen.


Eosphorite

Formula
Mn2+AlPO4(OH)2·H2
Crystal System
Orthorhombic 
Crystal Habit
Massive - Fibrous, Prismatic, Striated 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
light pink, yellow brown, light brown, light yellow, colorless 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal - Uneven 
Hardness
Collection
RC Stamberg Collection

Fluorluanshiweiite

with Spodumene - #57767
Locality
Shuk-Byul' peg., Sol'bel'der peg. field, Sangilen Uppland, Tuva, Siberia, Russia 
Formula
KLiAl1.5(Si3.5Al0.5)O10F2 
Availability
Sold
Size
3.5 x 3 x 2 cm - Miniature 
Tagged
pegmatite mineral  
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Rich groups of lilac lamellae to 9mm. It is micaceous and in fact is a lithium Mica. This is the second worldwide locality, which is apparently published. The base of this specimen is a 3cm fragment of a Spodumene crytsal. Verified by Dr. Igor Pekov.


Special Info
XRD Confirmed
Special Info
EDS Confirmed

Hambergite

#RS58442
Locality
Little Three mine, San Diego Co., California, United States 
Formula
Be2BO3(OH) 
Availability
Sold
Size
1.4 x 0.2 x 0.1 cm - Thumbnail 
Tagged
beryllium , pegmatite mineral  

A good slender, bladed Hambergite with a termination.


Hambergite

Formula
Be2BO3(OH) 
Crystal System
Orthorhombic 
Cleavage
Perfect, Good, None 
Luster
Vitreous - Dull 
Color
colorless, gray white, yellowish white, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
7.5 
Collection
RC Stamberg Collection

Hiortdahlite

#RS58407
Locality
Stokkøya, Langesundsfjorden, Larvik, Vestfold, Norway 
Formula
Na4Ca8Zr2(Nb,Mn,Ti,Fe,Mg,Al)2(Si2O7)4O3F5 
Availability
Sold
Size
5 x 4 x 1 cm - Miniature 
Tagged
pegmatite mineral  

Yellow crystal grains to 3mm throughout matrix in nepheline syenite.


Hiortdahlite

Formula
Na4Ca8Zr2(Nb,Mn,Ti,Fe,Mg,Al)2(Si2O7)4O3F5 
Crystal System
Triclinic 
Crystal Habit
Tabular 
Cleavage
Distinct, Distinct, None 
Luster
Vitreous - Greasy 
Color
brown, colorless, yellow brown, honey yellow, light yellow 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle 
Hardness
5.5 
Collection
RC Stamberg Collection

Johillerite

#57712
Locality
Tolbachik Volcano, Kamchatka, Russia 
Formula
NaCuMg3(AsO4)3 
Availability
Sold
Size
2.5 x 2 x 2 cm - Thumbnail 
Tagged
arsenate , copper  

Purple crystal groups of Johillerite. Very rich. This is the third reported locality worldwide. The type locality is Tsumeb.


Johillerite

Formula
NaCuMg3(AsO4)3 
Crystal System
Monoclinic 
Crystal Habit
Radial, Aggregates 
Cleavage
Perfect, Good, Good 
Luster
Vitreous (Glassy) 
Color
violet 
Class
Monoclinic - Prismatic 
Hardness

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