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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. 

Hedyphane

with Rhodonite - #DS47376
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Ca2Pb3(AsO4)3Cl 
Availability
Sold
Size
6.5 x 5 x 2 cm - Sm Cabinet 
Tagged
arsenate  

Colorless to slightly yellow crystalline, translucent Hedyphae with Rhodonite.


Hedyphane

Formula
Ca2Pb3(AsO4)3Cl 
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Crystalline - Coarse 
Cleavage
Imperfect, None, None 
Luster
Adamantine - Resinous 
Color
blue, gray white, yellowish white, white 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Uneven 
Hardness
4-5 
Collection
Shultz Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Hedyphane
On Dakota Matrix
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Hemimorphite

#PD47410
Locality
Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States 
Formula
Zn4Si2O7(OH)2·H2
Availability
Sold
Size
9 x 5 x 6 cm - Sm Cabinet 

A larger cabinet specimen of very good crystallized Hemimorphite with short bladed crystals to about 2mm in spherical groups.


Hemimorphite

Formula
Zn4Si2O7(OH)2·H2
Crystal System
Orthorhombic 
Crystal Habit
Massive, Stalactitic, Mammillary 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
brown, colorless, greenish gray, yellow brown, white 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Conchoidal 
Hardness
Collection
Phillips Collection

Hendricksite

#PD47361
Locality
Trotter shaft, Franklin, Sussex Co., New Jersey, United States 
Formula
KZn3(Si3Al)O10(OH)2 
Availability
Sold
Size
8 x 9 x 7 cm - Sm Cabinet 

A fine cabinet specimen with thick books of micaceous, dark golden brown Hendricksite. 


Hendricksite

Formula
KZn3(Si3Al)O10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Aggregates, Foliated 
Cleavage
Perfect, None, None 
Color
copper brown, red, reddish black 
Streak
red brown 
Class
Monoclinic - Prismatic 
Hardness
2.5-3 

Hetaerolite

with Chalcophanite - #DS47379
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
ZnMn3+2O4 
Availability
Sold
Size
3.5 x 2.5 x 2.5 cm - Miniature 

Platy black-silvery and shiny Chalcophanite in rosettes and thick coverage with dull Hetaerolite. Old Ward's specimen with tag.


Hetaerolite

Formula
ZnMn3+2O4 
Crystal System
Tetragonal 
Crystal Habit
Massive - Granular, Botryoidal, Stalactitic 
Cleavage
Indistinct, Poor, Poor 
Luster
Sub Metallic 
Color
black 
Streak
brownish black 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
Collection
Shultz Collection
SOLD
Hydrozincite - BM47381
Hydrozincite - BM47381

Hydrozincite

on Calcite - #BM47381
Locality
Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States 
Formula
Zn5(CO3)2(OH)6 
Availability
Sold
Size
9 x 7 x 4 cm - Sm Cabinet 
Tagged
carbonate  
Special Info
Fluorescent 

White earthy coating. FL.


Hydrozincite

Formula
Zn5(CO3)2(OH)6 
Crystal System
Monoclinic 
Crystal Habit
Bladed, Stalactitic, Massive - Fibrous 
Cleavage
Perfect, None, None 
Luster
Pearly 
Color
white, yellowish white, grayish white, pinkish white, bluish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2-2.5 
Collection
McConlogue Collection
Special Info
Fluorescent

Leucophoenicite

with Willemite - #PD47348
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Mn2+7(SiO4)3(OH)2 
Availability
Sold
Size
9 x 6 x 7 cm - Sm Cabinet 

Pink anhedral crystals of Leucophoenicite to 1mm with acicular Willemite. 


Leucophoenicite

Formula
Mn2+7(SiO4)3(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Striated, Massive 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
brown, brown, violet red, light red, dark pink 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5-6 
Collection
Phillips Collection

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