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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 calcioferrite, delindeite, hillite, libethenite, and mendozavilite-na fe and more from places like Moculta Phosphate Quarry, Angaston, Mt Lofty Ranges, South Australia, Australia, Kirovskii mine, Kukisvumchorr Mt., Khibiny Massif, Kola Peninsula, Russia, Reaphook Hill, Flinders Ranges, South Australia, Australia, Mindola Pit, Kitwe, Copper Belt Province, Zambia, and San Judas mine, Cumobabi, Moctezuma, Sonora, Mexico.

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

Hillite

with Scholzite - #BN47125
Locality
Reaphook Hill, Flinders Ranges, South Australia, Australia 
Formula
Ca2Zn(PO4)2·2H2
Availability
Available
Price
$75.00
Size
5 x 5 x 3 cm - Miniature 
Tagged
phosphate  
Special Info
Type Locality 

Good rhombic-looking murky white or colorless Hillite crystals to 1mm scattered on Sholzite blades to7mm.


Hillite

Formula
Ca2Zn(PO4)2·2H2
Crystal System
Triclinic 
Crystal Habit
Blocky 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous - Pearly 
Color
colorless, gray, greenish gray, bluish gray 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
3.5 
Collection
Dr. Buford L. Nichols Collection
Special Info
Type Locality
Mineralpedia
View Hillite
On Dakota Matrix
Previously Sold Hillite
On Dakota Matrix
Other Available Hillite
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Mindat
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Libethenite

#BN47131
Locality
Mindola Pit, Kitwe, Copper Belt Province, Zambia 
Formula
Cu2PO4(OH) 
Availability
Available
Price
$75.00
Size
1.3 x 1.3 x 1 cm - Thumbnail 
Tagged
phosphate , copper  

Superb, lustrous, dark green single crystal. It is very large of Libethenite.


Libethenite

Formula
Cu2PO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Prismatic, Druse, Globular 
Cleavage
Indistinct, Indistinct, None 
Luster
Vitreous - Greasy 
Color
green, dark green, blackish green, light olive green, dark olive green 
Streak
light green 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle 
Hardness
Collection
Dr. Buford L. Nichols Collection

Mendozavilite-Na Fe

#BN47132
Locality
San Judas mine, Cumobabi, Moctezuma, Sonora, Mexico 
Formula
NaCa2Fe3+6(PO4)2(PMo11O39)(OH,Cl)10·33H2
Availability
Available
Price
$75.00
Size
5.5 x 3.5 x 3 cm - Sm Cabinet 
Tagged
phosphate  
Special Info
Type Locality 

Mendozavilite-NaFe is a three locality mineral. It is an a product of molybdenite alteration in the presence of phosphorous. This specimen is very rich with a lot of yellowish crusts.


Collection
Dr. Buford L. Nichols Collection
Special Info
Type Locality

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