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Vesuvius & other Volcanic Minerals

Wednesday, 12 December 2018 04:00 PM

Introducing the "Vesuvius & other Volcanic Minerals" gallery which is part of our Special Edition galleries. This gallery contains mineral specimens for sale including euchlorine, gonnardite, and voltaite and more from places like Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy, Schellkopf, Eifel Volcanic Fields, Germany.

Euchlorine

#PD48072
Locality
Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy 
Formula
KNaCu3O(SO4)3 
Availability
Available
Price
$20.00
Size
0.3 x 0.3 x 0.3 cm - Thumbnail 
Tagged
copper  
Special Info
Type Locality 

Green pulverulent crusts in capsule. Type Locality.


Euchlorine

Formula
KNaCu3O(SO4)3 
Crystal System
Monoclinic 
Color
dark green 
Streak
pistachio green 
Class
Monoclinic - Prismatic 
Hardness
Collection
Don Phillips Collection
Special Info
Type Locality

Gonnardite

#PD50066
Locality
Schellkopf, Eifel Volcanic Fields, Germany 
Formula
(Na,Ca)2(Si,Al)5O10·3H2
Availability
Available
Price
$30.00
Size
8 x 3 x 4 cm - Sm Cabinet 

White ball shaped aggregates of Gonnardite to 2mm.


Gonnardite

Formula
(Na,Ca)2(Si,Al)5O10·3H2
Crystal System
Tetragonal 
Crystal Habit
Fibrous, Spherical 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
white 
Streak
white 
Class
Tetragonal - Scalenohedral 
Hardness
4-5 
Collection
Don Phillips Collection

Voltaite

#35140
Locality
Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy 
Formula
K2Fe2+5Fe3+3Al(SO4)12·18H2
Availability
Available
Price
$175.00
Size
6.5 x 2 x 2 cm - Sm Cabinet 
Special Info
Antique Specimen 
Special Info
Type Locality 
Special Info
Type Material 

Antique vial dated 1926 filled with loose crystalline particles of various minerals with yellow Voltaite. The specimen is "part of type" specimen supplied by Dr. Georg Gebhard with his personal label (see prov tab). Type Locality.


Voltaite

Formula
K2Fe2+5Fe3+3Al(SO4)12·18H2
Crystal System
Isometric 
Crystal Habit
Massive - Granular, Crystalline - Fine 
Cleavage
None, None, None 
Luster
Silky 
Color
greenish black, dark green, olive green, black 
Streak
grayish green 
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
3-3.5 
Special Info
Antique Specimen
Special Info
Type Locality
Special Info
Type Material
On Dakota Matrix
Previously Sold Voltaite
On Dakota Matrix
Other Available Voltaite
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View Voltaite
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View Voltaite

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