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0 item @ $0.00  

Rare Minerals of Franklin-Sterling Hill III

Wednesday, 30 August 2017 08:00 PM

Releasing another lot of Franklin/Sterling Hill minerals from various collections but mostly the Phillips' Collection. This is a locality charished by those who not only enjoy rare species, but also fluorescent minerals. 

Sphalerite

with Calcite, Willemite & Franklinite - #DS47382
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
ZnS 
Availability
Sold
Size
13 x 7 x 5 cm - Cabinet 
Tagged
sulfide  

Cabinet specimen 1-3mm crystalline grains of Sphalerite embedded in Calcite and associated with Willemite (brick red) and Franklinite. FL


Sphalerite

Formula
ZnS 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Granular, Colloform 
Cleavage
Perfect, Perfect, Perfect 
Luster
Resinous - Greasy 
Color
brown, yellow, red, green, black 
Streak
brownish white 
Class
Isometric - Hextetrahedral 
Fracture
Uneven 
Hardness
3.5-4 
Collection
Shultz Collection

Torreyite

with Pyrochroite - #PD47227
Locality
Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States 
Formula
Mg9Zn4(SO4)2(OH)22·8H2
Availability
Sold
Size
0.5 x 0.5 x 0.3 cm - Thumbnail 
Special Info
Type & Only Locality 

Small 5mm piece of white granular crystals with unknown pink. Type and only locality.


Torreyite

Formula
Mg9Zn4(SO4)2(OH)22·8H2
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous - Pearly 
Color
bluish white 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
Collection
Phillips Collection
Special Info
Type & Only Locality

Willemite

with Tephroite & Friedelite - #PD47408
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Zn2SiO4 
Availability
Sold
Size
7 x 4 x 3 cm - Sm Cabinet 

This is a really good specimen loaded with silky white to colorless acicular crystals of Willemite  to 5mm and excellent purple Tephroite crystals to 1mm. I am not sure about the Friedelite crystals. 


Willemite

Formula
Zn2SiO4 
Crystal System
Trigonal 
Crystal Habit
Prismatic, Massive - Granular, Massive 
Cleavage
Poor, Poor, None 
Luster
Vitreous - Resinous 
Color
white, yellow, green, reddish brown, black 
Streak
white 
Class
Trigonal - Rhombohedral 
Fracture
Uneven 
Hardness
5.5 
Collection
Phillips Collection
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Zincite

#PD45433
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
ZnO 
Availability
Sold
Size
10 x 5 x 5 cm - Cabinet 

Bright red band of Zincite up to 1.5cm thick. Nice piece.


Zincite

Formula
ZnO 
Crystal System
Hexagonal 
Crystal Habit
Massive - Fibrous, Granular, Disseminated 
Cleavage
Perfect, None, None 
Luster
Sub Metallic 
Color
yellow, dark yellow, dark red, orange 
Streak
yellowish orange 
Class
Hexagonal - Dihexagonal Pyramidal 
Fracture
Sub Conchoidal 
Hardness
4-5 
Collection
Phillips Collection
Mineralpedia
View Zincite
On Dakota Matrix
Previously Sold Zincite
On Dakota Matrix
Other Available Zincite
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