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Diameter, mm (1mm - 0,039inch)

Collectible minerals - full range in stock "Feldspar"

Feldspar is a widespread group of rock-forming minerals. Feldspars form two isomorphic series: albite - orthoclase and albite - anorthite. It has a number of types: albite, oligoclase, andesine, labradorite, bytonite, anorthite, orthoclase, adularia, microcline, sanidine, celsian.

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

Physical properties of Feldspar

General
Category Tectosilicate
Formula
(repeating unit)
KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8
IMA symbol Fsp
Crystal system Triclinic or monoclinic
Identification
Color pink, white, gray, brown, blue
Cleavage two or three
Fracture along cleavage planes
Mohs scale hardness 6.0–6.5
Luster Vitreous
Streak white
Diaphaneity opaque
Specific gravity 2.55–2.76
Density 2.56
Refractive index 1.518–1.526
Birefringence first order
Pleochroism none
Other characteristics exsolution lamellae common
Code: 4629
North Karelia, RF
30*28*54mm

0.00 $ $10.00

Code: 4630
North Karelia, RF
54*20*26mm

0.00 $ $11.67

Code: 4631
North Karelia, RF
37*23*12mm

0.00 $ $13.33

Code: 4632
North Karelia, RF
20*12*21mm

0.00 $ $6.67

Code: 4633
North Karelia, RF
22*18*14mm

0.00 $ $6.67

Code: 4372
North Karelia, RF
79*53*20mm

0.00 $ $10.00

Code: 4373
North Karelia, RF
63*33*23mm

0.00 $ $3.33

Code: 4375
North Karelia, RF
30*27*25mm

0.00 $ $6.00

Code: 4239
North Karelia, RF
63*54*37mm

0.00 $ $30.00

Code: 4082
Marchenko Peak, Khibiny, Kola Peninsula, RF
46*35*27mm

0.00 $ $18.33

Code: 3864
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
38*33*17mm

0.00 $ $15.00

Code: 3842
Northern quarry, Mount Alluive, Lovozersky massif, Kola Peninsula, RF
63*40*40mm

0.00 $ $26.67

Code: 2422
Mount Ploskaya, Kola Peninsula, RF
90*63*14mm

0.00 $ $22.00

Code: 1910
Sailing Mountain, Kola Peninsula, RF
68*58*36mm

0.00 $ $88.33

Code: 1911
Sailing Mountain, Kola Peninsula, RF
34*34*27mm

0.00 $ $56.00

Code: 1208
Sailing Mountain, Kola Peninsula, RF
54*41*41mm

0.00 $ $88.33

Code: 1209
Sailing Mountain, Kola Peninsula, RF
52*46*31mm

0.00 $ $73.33

Code: 531
Middle Urals, RF
23*23*17mm

0.00 $ $12.67

Code: 862
Rudnogorsk deposit, Irkutsk region, Eastern Siberia, RF
48*34*32mm

0.00 $ $125.00

Code: 2048
Manifestation "Luck", Khabarovsk Territory, Primorye, RF
56*25*23mm

0.00 $ $51.67

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