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0 item @ $0.00  

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. 

Adelite

#DS47375
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
CaMgAsO4(OH) 
Availability
Sold
Size
5 x 4 x 4 cm - Miniature 
Tagged
arsenate  

Adelite is rare and this specimen has not been confirmed. Descriptions by Dunn and others are not real helpful or definitive. No crystals. I assume it is allegedly the reddish brown in-filling between the Franklinite. Suspect specimen. No return.


Adelite

Formula
CaMgAsO4(OH) 
Crystal System
Orthorhombic 
Crystal Habit
Massive 
Cleavage
Indistinct, None, None 
Luster
Resinous 
Color
blue gray, green, gray, yellow, light green 
Streak
white 
Class
Orthorhombic - Disphenoidal 
Fracture
Conchoidal 
Hardness
Collection
Shultz Collection
On Dakota Matrix
Previously Sold Adelite
On Dakota Matrix
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Allactite

#DS47353
Locality
Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States 
Formula
Mn2+7(AsO4)2(OH)8 
Availability
Sold
Size
4.5 x 2 x 3 cm - Miniature 
Tagged
arsenate  

Superp platy, red, translucent Allactite crystals from 1-3mm. Excellent piece, most likely from the 1981 find. I previously thought these were Sarkinite, as labeled from the Shultz collection. An expert in Franklin as to me otherwise.


Allactite

Formula
Mn2+7(AsO4)2(OH)8 
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous - Greasy 
Color
brown red, greenish brown, purple red, pink 
Class
Monoclinic - Prismatic 
Hardness
4.5 
Collection
Shultz Collection
Mineralpedia
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On Dakota Matrix
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Axinite-(Mn)

with Rhodonite - #PD47351
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Ca2Mn2+Al2BSi4O15(OH) 
Availability
Sold
Size
7 x 5.5 x 3 cm - Sm Cabinet 

Tiny less than 1mm crystals of lustrous Axinite with tabular and bladed micro crystals of Rhodonite.


Axinite-(Mn)

Formula
Ca2Mn2+Al2BSi4O15(OH) 
Crystal System
Triclinic 
Crystal Habit
Massive - Granular, Lamellar 
Cleavage
Distinct, Poor, Poor 
Luster
Vitreous (Glassy) 
Color
brown, colorless, yellowish, pale violet, reddish 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
6.5-7 
Collection
Phillips Collection

Axinite-(Mn)

with Hancockite - #DS47366
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Ca2Mn2+Al2BSi4O15(OH) 
Availability
Sold
Size
4 x 3 x 2 cm - Miniature 

Yellow crystal grains to 6mm in fine grained pinkish red Hancockite.


Axinite-(Mn)

Formula
Ca2Mn2+Al2BSi4O15(OH) 
Crystal System
Triclinic 
Crystal Habit
Massive - Granular, Lamellar 
Cleavage
Distinct, Poor, Poor 
Luster
Vitreous (Glassy) 
Color
brown, colorless, yellowish, pale violet, reddish 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
6.5-7 
Collection
Shultz Collection

Axinite-(Mn)

with Hendricksite - #DS47380
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Ca2Mn2+Al2BSi4O15(OH) 
Availability
Sold
Size
5 x 3.5 x 3 cm - Miniature 

Dark amber reddish brown, glassy Axinite with no crystals associated with Andradite and Hendricksite.


Axinite-(Mn)

Formula
Ca2Mn2+Al2BSi4O15(OH) 
Crystal System
Triclinic 
Crystal Habit
Massive - Granular, Lamellar 
Cleavage
Distinct, Poor, Poor 
Luster
Vitreous (Glassy) 
Color
brown, colorless, yellowish, pale violet, reddish 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Brittle - Conchoidal 
Hardness
6.5-7 
Collection
Shultz Collection

Bementite

with Rhodonite - #GJ47352
Locality
Franklin, Sussex Co., New Jersey, United States 
Formula
Mn7Si6O15(OH)8 
Availability
Sold
Size
6.5 x 2.5 x 2 cm - Sm Cabinet 

Brown Bementite with pink crystalline Rhodonite.


Bementite

Formula
Mn7Si6O15(OH)8 
Crystal System
Monoclinic 
Crystal Habit
Massive, Radial 
Cleavage
Perfect, Good, Good 
Luster
Vitreous (Glassy) 
Color
brown, gray, yellow, yellow brown, pink 
Streak
yellow white 
Class
Monoclinic - Prismatic 
Hardness
Collection
Jungles Collection
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