Contacts
Moscow, Russia
Shipping: worldwide
We work 7 days a week
Orders are accepted
around the clock
Product search
Diameter, mm (1mm - 0,039inch)

Collectible minerals - full range in stock "Arfvedsonite"

Arfvedsonite is a mineral belonging to the group of amphiboles. A mineral of igneous and metamorphic rocks, poor in silica.

You can see arfvedsonite stone for sale and buy it in the Minerals of Russia online store.

Physical properties of Arfvedsonite

General
Category Inosilicates
Amphiboles
Formula
(repeating unit)
[Na][Na2][(Fe2+)4Fe3+][(OH)2|Si8O22]
IMA symbol Arf
Strunz classification 9.DE.25 (10 ed)
VIII/F.08-100 (8 ed)
Dana classification 66.1.3c.9
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group C2/m
Identification
Color Black, deep green on thin edges
Crystal habit Fibrous, radial prismatic aggregates
Twinning Simple or lamellar parallel to 
Cleavage Perfect on 
Fracture Uneven
Tenacity Brittle
Mohs scale hardness 5–6
Luster Vitreous
Streak Deep bluish gray, gray-green
Diaphaneity Translucent to opaque
Specific gravity 3.3–3.5
Optical properties Biaxial (-)
Refractive index nα = 1.652–1.699
nβ = 1.660–1.705
nγ = 1.666–1.708
Birefringence δ = 0.014
Pleochroism Strong: Blue-greens, yellow-browns, gray-violets
Dispersion r > v strong

Code: 1199
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
63*40*39mm

0.00 $ $16.36

Code: 1162
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
45*31*15mm

0.00 $ $30.91

Code: 1198
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
56*38*32mm

0.00 $ $30.91

Code: 2712
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
34*26*20mm

0.00 $ $12.00

Code: 2627
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
70*50*50mm

0.00 $ $107.27

Code: 2093
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
32*22*26mm

0.00 $ $16.36

Code: 1669
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
25*18*14mm

0.00 $ $13.09

Code: 1683
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
40*29*26mm

0.00 $ $20.00

Code: 637
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
138*98*65mm

0.00 $ $130.91

I want to receive information about new products