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

Chalcedony mineral - You can buy these samples

Chalcedony is a cryptocrystalline variety of quartz. It has a fine fiber structure. It has many varieties, the color of which varies greatly: carnelian, carnelian, sard, heliotrope, chrysoprase, sapphirine (not to be confused with the mineral sapphirine). Used in jewelry. Patterned chalcedony is called agate, black-and-white striped chalcedony is called onyx. Pseudo-stalactites of chalcedony are especially valued among collectors. Known since ancient times. Widely used in ancient Rome and Greece.

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

Physical properties of Chalcedony

General
Category Oxide minerals, quartz group
Formula
(repeating unit)
Silica (silicon dioxide, SiO2)
Crystal system Trigonal or monoclinic
Identification
Formula mass 60 g/mol
Color Various
Cleavage Absent
Fracture Uneven, splintery, conchoidal
Mohs scale hardness 6–7
Luster Waxy, vitreous, dull, greasy, silky
Streak White
Diaphaneity Translucent
Specific gravity 2.59–2.61
Code: 2979
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
76*33*33mm

0.00 $ $43.64

Code: 2980
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
75*27*15mm

0.00 $ $30.91

Code: 2982
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
67*34*27mm

0.00 $ $18.18

Code: 2914
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
58*35*16mm

0.00 $ $16.36

Code: 2922
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
24*22*15mm

0.00 $ $9.09

Code: 2924
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
32*21*18mm

0.00 $ $9.09

Code: 2930
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
39*33*21mm

0.00 $ $12.73

Code: 2934
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
102*19*15mm

0.00 $ $25.45

Code: 2935
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
108*43*37mm

0.00 $ $49.09

Code: 2941
Staritskij Rajon, Tverskaya Oblast, Moscow region, RF
91*56*45mm

0.00 $ $72.73

Code: 2756
Staraya Sitnya, Moscow region, RF
125*68*58mm

0.00 $ $32.73

Code: 2757
Staraya Sitnya, Moscow region, RF
72*69*104mm

0.00 $ $21.82

Code: 2758
Staraya Sitnya, Moscow region, RF
96*64*39mm

0.00 $ $12.73

Code: 2759
Staraya Sitnya, Moscow region, RF
60*45*27mm

0.00 $ $7.27

Code: 2682
Staritskij Rajon, Tverskaya Oblast, Moscow region, Russia
63*54*38mm

0.00 $ $26.55

Code: 2562
Staritskij Rajon, Tverskaya Oblast, Moscow region, Russia
38*21*17mm

0.00 $ $9.50

Code: 2364
Kvarkino, Orenburg region, southern Urals, RF
68*47*10mm

0.00 $ $25.00

Code: 2363
Kvarkino, Orenburg region, southern Urals, RF
68*40*10mm

0.00 $ $25.00

Code: 2362
Kvarkino, Orenburg region, southern Urals, RF
69*44*9mm

0.00 $ $29.95

Code: 24
Golutvin, Moscow region, RF
50*30*40mm

0.00 $ $10.55

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