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Systematic Minerals

Friday, 23 June 2017 08:00 PM

Introducing the "Systematic Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including arsenogoyazite, bonshtedtite, bradleyite, brendelite, calcioferrite, and delindeite and more from places like Granite Gap mine, near Steins, Hidalgo Co., New Mexico, Kukisvumchorr Mt., Khibiny Massif, Kola Peninsula, Russia, Westvaco mine, Sweet Water Co., Wyoming, United States, Güldener Falk mine, Neustädtel, Erzgebirge, Saxony, Germany, Moculta Phosphate Quarry, Angaston, Mt Lofty Ranges, South Australia, Australia, and Kirovskii mine, Kukisvumchorr Mt., Khibiny Massif, Kola Peninsula, Russia.

SOLD
Arsenogoyazite - BN47102
Arsenogoyazite - BN47102

Arsenogoyazite

#BN47102
Locality
Granite Gap mine, near Steins, Hidalgo Co., New Mexico 
Formula
SrAl3(AsO4)(AsO3OH)(OH)6 
Availability
Sold
Size
2 x 1.5 x 1 cm - Thumbnail 
Tagged
arsenate  

Tiny white crystal groups to 1mm. ID by Ron Gibbs, the expert at Granite Gap.


Arsenogoyazite

Formula
SrAl3(AsO4)(AsO3OH)(OH)6 
Crystal System
Trigonal 
Crystal Habit
Reniform, Encrustations 
Cleavage
None, None, None 
Luster
Vitreous (Glassy) 
Color
greenish white, gray green, yellow, light green 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Conchoidal 
Hardness
Collection
Dr. Buford L. Nichols Collection
SOLD
Bonshtedtite - BN47100
Bonshtedtite - BN47100

Bonshtedtite

#BN47100
Locality
Kukisvumchorr Mt., Khibiny Massif, Kola Peninsula, Russia 
Formula
Na3Fe2+(PO4)(CO3
Availability
Sold
Size
2.5 x 1.5 x 1 cm - Thumbnail 
Tagged
phosphate  

Colorless or white silky crystals. Rich specimen.


Bonshtedtite

Formula
Na3Fe2+(PO4)(CO3
Crystal System
Monoclinic 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous (Glassy) 
Color
colorless, rose, yellowish, greenish 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
Collection
Dr. Buford L. Nichols Collection
SOLD
Bradleyite - BN47098
Bradleyite - BN47098

Bradleyite

#BN47098
Locality
Westvaco mine, Sweet Water Co., Wyoming, United States 
Formula
Na3Mg(PO4)(CO3
Availability
Sold
Size
1.5 x 1 x 1 cm - Thumbnail 
Tagged
phosphate  

Brownish yellow mass. Rare. 


Bradleyite

Formula
Na3Mg(PO4)(CO3
Crystal System
Monoclinic 
Luster
Vitreous (Glassy) 
Color
gray, colorless, white 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
3-4 
Collection
Dr. Buford L. Nichols Collection

Brendelite

#BN47114
Locality
Güldener Falk mine, Neustädtel, Erzgebirge, Saxony, Germany 
Formula
(Bi,Pb)2(Fe3+,Fe2+)O2(OH)PO4 
Availability
Available
Price
$125.00
Size
2.3 x 1 x 1 cm - Thumbnail 
Tagged
phosphate  
Special Info
Type Locality 

Brendelite is a very rare mineral found in only two localities, both in Saxony, Germany. It is a dark brown mineral found in this specimen as 1mm grains. It is an unusual phosphate of lead and bismuth.


Brendelite

Formula
(Bi,Pb)2(Fe3+,Fe2+)O2(OH)PO4 
Crystal System
Monoclinic 
Crystal Habit
Crystalline - Fine, Euhedral Crystals, Aggregates 
Cleavage
None, None, None 
Luster
Vitreous - Adamantine 
Color
black, dark brown 
Streak
light brown 
Class
Monoclinic - Prismatic 
Hardness
4.5 
Collection
Dr. Buford L. Nichols Collection
Special Info
Type Locality

Calcioferrite

#BN47119
Locality
Moculta Phosphate Quarry, Angaston, Mt Lofty Ranges, South Australia, Australia 
Formula
Ca4MgFe3+4(PO4)6(OH)4·12H2
Availability
Available
Price
$35.00
Size
4 x 2.5 x 2.5 cm - Miniature 
Tagged
phosphate  

Yellow, thin platy crystals in 1mm aggregates in limonitic matrix.


Calcioferrite

Formula
Ca4MgFe3+4(PO4)6(OH)4·12H2
Crystal System
Monoclinic 
Crystal Habit
Foliated, Reniform 
Cleavage
Perfect, Very Good, None 
Luster
Pearly 
Color
greenish yellow, yellow, yellow green, yellowish white 
Streak
yellowish white 
Class
Monoclinic - Sphenoidal 
Fracture
Brittle 
Hardness
2.5 
Collection
Dr. Buford L. Nichols Collection

Delindeite

#BN47107
Locality
Kirovskii mine, Kukisvumchorr Mt., Khibiny Massif, Kola Peninsula, Russia 
Formula
Na2Ba2Ti3(Si2O7)2O2(OH)2·2H2
Availability
Available
Price
$40.00
Size
Capsule 
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

A tiny grain less than 0.3mm in capsule. Tested by Russia mineralogists. It is from an "extremely small find". Originated from Excalibur Minerals.


Delindeite

Formula
Na2Ba2Ti3(Si2O7)2O2(OH)2·2H2
Crystal System
Monoclinic 
Crystal Habit
Aggregates, Flakes 
Cleavage
Good, None, None 
Luster
Pearly 
Color
gray pink 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Irregular 
Hardness
Collection
Dr. Buford L. Nichols Collection
Special Info
XRD Confirmed
Special Info
EDS Confirmed

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