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

Pyromorphite mineral - You can buy these samples

Pyromorphite is a lead mineral characteristic of the oxidation zones of lead and lead-zinc ores. The usual color is green. Other colors are rare. It often forms pseudomorphs after other lead minerals. It is practically never found in large quantities. Of interest to collectors.

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

Physical properties of Pyromorphite

General
Category Phosphate mineral
Apatite group
Formula
(repeating unit)
Pb5(PO4)3Cl
IMA symbol Pym
Strunz classification 8.BN.05
Crystal system Hexagonal
Crystal class Dipyramidal (6/m)

(same H-M symbol)
Space group P63/m
Identification
Color Dark green to grass-green or green, yellow, yellow-orange, reddish orange, yellow-brown, greenish-yellow or yellowish-green, shades of brown, tan, grayish, white and may be colorless; colourless or faintly tinted in transmitted light.
Crystal habit Prismatic to acicular crystals, globular to reniform
Twinning Rarely on {1122}
Cleavage Imperfect- [1011]
Fracture Uneven to sub-conchoidal
Tenacity Brittle
Mohs scale hardness 3.5-4
Luster Resinous to subadamantine
Streak White
Diaphaneity Transparent to translucent
Specific gravity 7.04 measured, 7.14 calculated
Optical properties Uniaxial (-) May be anomalously biaxial -
Refractive index nω = 2.058 nε = 2.048
Birefringence δ = 0.010
Pleochroism Weak
Ultraviolet fluorescence May fluoresce yellow to orange under LW and SW UV
Other characteristics Piezoelectric if biaxia
Code: 2752
Mount Sukhovyaz, Verkhneufaleisky district, Chelyabinsk region, South Urals, RF
80*35*32mm

0.00 $ $18.18

Code: 1718
mount Sukhovyaz, Verkhneufaleisky district, Chelyabinsk region, South Urals, RF
57*49*29mm

0.00 $ $26.18

Code: 1717
mount Sukhovyaz, Verkhneufaleisky district, Chelyabinsk region, South Urals, RF
31*24*18mm

0.00 $ $18.91

Code: 1365
mount Sukhovyaz, Verkhneufaleisky district, Chelyabinsk region, South Urals, RF
60*48*44mm

0.00 $ $21.78

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