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Graphic Granite

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PDM1048312

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Description
Locality: 
Lom, Innlandet, Norway
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 8 × 5 cm
Weight: 
380.00gr
Description

Block of cream coloured microcline crystal from Lom (Norway) that includes the characteristic distribution of distinctive grey quartz inside, of repetitive cuneiform pattern, that form the so called graphic texture. The graphic texture is commonly created by exsolution and devitrification and immiscibility processes in igneous rocks. It is called 'graphic' because the exsolved or devitrified minerals form lines and shapes which are reminiscent of writing (Fenn, 1986).

Specimen of a Dutch collection, #3754, built in the 1960’s - 1990’s.

Combine specimens to reduce shipping costs!.

 

Fenn, P.M., (1986). On the origin of graphic granite. American Mineralogist, 71, 325-330 pp. Free available online.

Mineral Data
What's on the rock

Graphic Granite

Mixture Of: 

Feldspar Group

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0

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Shipping Information

Postage Area Price
Belgium <2Kg (Unregistered)
7
NL, DE, FR, LU <2Kg (Unregistered)
11
Rest EU <2Kg (Unregistered)
14
EUROPE (NO EU) <2Kg (Unregistered)
15
USA <2Kg (Unregistered)
19
REST OF THE WORLD <2Kg (Unregistered)
21

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