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Ilvaite Palygorskite Quartz

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PDM930863

Ilvaite Palygorskite Quartz

Type Locality

Description Tabs

Description
Locality: 
Rio Marina, Elba, Livorno Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 6.4 × 5.2 cm
Weight: 
350.00gr
Description

Lustrous black crystals of ilvaite crystals of excellent chisel-pointed termination, associated to translucent quartz and white fibrous paligorskite. The matrix is composed of chalcopyrite, pyrite and hedembergite, it is of good size (10+cm) and it is from the type locality for ilvaite. Acquired in 5/7/1977 by Walter De Keersmaecker #8252-2.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Ilvaite

Formula: 
CaFe2+2Fe3+(Si2O7)O(OH)
Strunz: 
9.BE.07
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Torre di Rio - Santa Filomena area (Monte della Torre), Rio Marina, Elba Island, Livorno Province, Tuscany, Italy

Palygorskite

Formula: 
(Mg,Al)5(Si,Al)8O20(OH)2·8H2O
Strunz: 
9.EE.20
Hardness: 
2.0 - 2.5
Type Locality: 
Second Mine, Popovka River, Palygorskaya Distance of Perm Railways, Permskaya Oblast', Middle Urals, Urals Region, Russia...

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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