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Elbaite With Quartz & Cleavelandite

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TBM764954

Elbaite With Quartz & Cleavelandite

Description Tabs

Description
Locality: 
Stak Nala, Gilgit-Baltistan, Pakistan
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 2.5 × 1.8 cm
Weight: 
16.00gr
Description

Pair of polychrome and shiny crystals streaked with Elbaite twinned with slightly divergent growth. Cleavelandite sheets are present in the intersection of the crystals. The colour varies within the same perfectly biterminated crystals, from intense pink, to green, to the colourless of Acroite, in the opposite termination. The largest crystal has dimensions cm 4,8x0,9x0,9. He group is a floating geode center of exceptional atypical aesthetic effect and rare in colour for the location.

Mineral Data
What's on the rock

Elbaite

Formula: 
Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.5
Streak: 
White
Type Locality: 
Fonte del Prete, San Piero in Campo, Campo nell'Elba, Elba Island, Livorno Province, Tuscany, Italy...

Quartz

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

Cleavelandite

Variety Of: 

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Hardness: 
6.0 - 6.5
Hardness: 
0.0