Barents Blue Granite Tiles, Norway Blue Granite

Commodity (Barents Blue)

Main Type:

Massive stone (Granite)
Sub Type: Gneiss

Evaluation

Economical: Significant economic prospect ,

(Confirmed 16.des.2001 by NGU)

Operations

From - To Activity Comments

1989 - 1989 Detail mapping Company/Institution

:Finnmarksforskning

1989 - 1993 Test mining

1993 Regular production

Production

Prod. method: Open pit mining Production:

Prod. status: Periodic activity

Products: Barents

Blue (tiles) .

Commercial Name Product description : Barents Blue

Classification : Massive blocks Colour

:Bluish

Play of colours : Uniformity :Medium good

Lithology :Migmatite Grain

size :Fine - medium grained (<1mm - 3 mm)

Mineralogy:

Feldspar : Major

mineral (>10%)

Quartz:
Major mineral (>10%)

Biotite : Major
mineral (>10%)

Chlorite:

Subordinate mineral (1-10%)

Potassic feldspar Subordinate mineral (1-10%)

Sericite Accessory mineral (<1%)

Opaque Accessory

mineral (<1%)

Apatite

Accessory mineral (<1%)

Test of

Physical Properties:

Type of test Standard

Test value

Specific gravity DIN 52102

26,3 g/cm3

Bending strength DIN 52112 22,4 N/mm2

Compressive strength DIN
52105 182 N/mm2

Water absorption (weight %) DIN

52103 ,09 %

Wearing coefficient ASTM C241-85 1,73 mm

Deposit rock

Lithology: Weathering colour:

Era:

Archean Period:

Genesis: Metamorphic

formation Form: Lens

Main texture:

Migmatitic

Main grain size: &nb