Opals
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Aucune réserve de pierres précieuses
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19.4 Cts-Dioptase Malachite Crystal specimen TBM-2557 //** trueblueminerals
- UGS
- TBM-2557
- Dimensions (mm)
- 17.600 x 12.200 x 10.600mm
- Poids (cts)
- 19.400
- Treatment
- No Treatment
- Shape
- Freeform
- Taper
- Rough, Specimen
- Clarity
- N/A
- Couleurs
-
DIOPTASE -MALACHITE
NAMIBIA
NO TREATMENT
BEAUTIFUL TRANSPARENT VIVID GREEN COLOUR-DIOPTASE CRYSTAL
SOME WITH GREAT TERMINATION CRYSTLIZATION
Dioptase Specifications & Characteristics
What type of gem is dioptase? This mineral is an extremely rare copper cyclosilicate that crystallizes in small prismatic shards and inclusions within quartz. It forms from oxidized copper veins and commonly occurs around other copper-bearing minerals, like chrysocolla, malachite, or shattuckite.
Dioptase falls at 5 on the Mohs mineral hardness scale (the same as tooth enamel). That and its perfect cleavage makes it exceptionally fragile.
The mineral also exhibits some fascinating optical properties. As light enters dioptase gems, it splits into two components refracting in two semi-different directions and speeds. This difference, which you can measure with a refractometer, is known as birefringence.
MORE INFO ON-https://www.gemrockauctions.com/learn/a-z-of-gemstones/dioptase
TRADING AS LIGHTNINGOPALS LLC-TRUEBLUEOPALS AND GEMS
- UGS
- TBM-2557
- Dimensions (mm)
- 17.600 x 12.200 x 10.600 mm
- Poids (cts)
- 19.400
- Treatment
- No Treatment
- Shape
- Freeform
- Taper
- Rough, Specimen
- Clarity
- N/A
- Couleurs
-
DIOPTASE -MALACHITE
NAMIBIA
NO TREATMENT
BEAUTIFUL TRANSPARENT VIVID GREEN COLOUR-DIOPTASE CRYSTAL
SOME WITH GREAT TERMINATION CRYSTLIZATION
Dioptase Specifications & Characteristics
What type of gem is dioptase? This mineral is an extremely rare copper cyclosilicate that crystallizes in small prismatic shards and inclusions within quartz. It forms from oxidized copper veins and commonly occurs around other copper-bearing minerals, like chrysocolla, malachite, or shattuckite.
Dioptase falls at 5 on the Mohs mineral hardness scale (the same as tooth enamel). That and its perfect cleavage makes it exceptionally fragile.
The mineral also exhibits some fascinating optical properties. As light enters dioptase gems, it splits into two components refracting in two semi-different directions and speeds. This difference, which you can measure with a refractometer, is known as birefringence.
MORE INFO ON-https://www.gemrockauctions.com/learn/a-z-of-gemstones/dioptase
TRADING AS LIGHTNINGOPALS LLC-TRUEBLUEOPALS AND GEMS
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PositifBeen watching this for some time.. Got me a deal..! Great !
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Positif
Fast shipment. Very well packed. Would buy again from this seller
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Positif
Fast shipment. Very well packed
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Positif
Paid and shipped - no feedback left after 100 days
