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

Stone sphere balls - full range in stock "Palygorskite"

Palygorskite is a relatively rare clay mineral with a ribbon-layered structure. Flexible. It is also known under its other name - mountain leather. Forms needle-shaped crystals of microscopic size. Forms confused-fibrous, leathery, earthy and leafy aggregates. It has a porous structure, which makes it float on water. Known since ancient times and used by the Mayan people for the production of paints. Currently used as an environmentally friendly material for heat and sound insulation. The porous properties of palygorskite are used to produce filters from it.

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

Physical properties of Palygorskite

General
Category Phyllosilicate
Formula
(repeating unit)
(Mg,Al)2Si4O10(OH)·4(H2O)
IMA symbol Plg
Strunz classification 9.EE.20
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group C2/m
Unit cell a = 12.78 Å, b = 17.86 Å,
c = 5.24 Å; β = 95.78°; Z = 4
Identification
Color White, grayish, yellowish, gray-green
Crystal habit Lath shaped crystals, fibrous and compact masses
Cleavage Distinct/good, good on {110}
Tenacity Tough
Mohs scale hardness 2 - 2.5
Luster Waxy, earthy
Diaphaneity Translucent
Specific gravity 1 - 2.6
Optical properties Biaxial (-)
Refractive index nα = 1.522 - 1.528 nβ = 1.530 - 1.546 nγ = 1.533 - 1.548
Birefringence δ = 0.011 - 0.020
Pleochroism X= pale yellow Y=Z= pale yellow-green
Code: 3933
Village Okulovo, Nizhny Novgorod region, Volga region, RF
70mm

0.00 $ $250.91

Code: 2394
village Okulovo, Nizhny Novgorod region, Volga region, RF
78mm

0.00 $ $298.00

Recommended
Palygorskite - Mountain leather (sphere "Face")
Code: eee5
village Okulovo, Nizhny Novgorod region, Volga region, RF
60mm

0.00 $ $195.00

Code: 1567
village Okulovo, Nizhny Novgorod region, Volga region, RF
62mm

0.00 $ $189.09

Code: 2395
village Okulovo, Nizhny Novgorod region, Volga region, RF
57mm

0.00 $ $210.00

I want to receive information about new products